@article{AltenbergerMejiaJimenezGuenteretal.2012,
  author    = {Altenberger, Uwe and Mejia Jimenez, D. M. and G{\"u}nter, C. and Sierra Rodriguez, G. I. and Scheffler, F. and Oberh{\"a}nsli, Roland},
  title     = {The Garzn Massif, Colombia-a new ultrahigh-temperature metamorphic complex in the early Neoproterozoic of northern South America},
  series = {Mineralogy and petrology},
  volume    = {105},
  journal   = {Mineralogy and petrology},
  number    = {3-4},
  publisher = {Springer},
  address   = {Wien},
  issn      = {0930-0708},
  doi       = {10.1007/s00710-012-0202-1},
  pages     = {171 -- 185},
  year      = {2012},
  abstract  = {The Garzn Complex of the Garzn Massif in SW Colombia is composed of the Vergel Granulite Unit (VG) and the Las Margaritas Migmatite Unit (LMM). Previous studies reveal peak temperature conditions for the VG of about 740 A degrees C. The present study considers the remarkable exsolution phenomena in feldspars and pyroxenes and titanium-in-quartz thermometry. Recalculated ternary feldspar compositions indicate temperatures around 900-1,000 A degrees C just at or above the ultra-high temperature-metamorphism (UHTM) boundary of granulites. The calculated temperatures range of exsolved ortho- and clinopyroxenes also supports the existence of an UHTM event. In addition, titanium-in-quartz thermometry points towards ultra-high temperatures. It is the first known UHTM crustal segment in the northern part of South America. Although a mean geothermal gradient of ca 38 A degrees C km(-1) could imply additional heat supply in the lower crust controlling this extreme of peak metamorphism, an alternative model is suggested. The formation of the Vergel Granulite Unit is supposed to be formed in a continental back-arc environment with a thinned and weakened crust behind a magmatic arc (Guapotn-Mancagua Gneiss) followed by collision. In contrast, rocks of the adjacent Las Margaritas Migmatite Unit display "normal" granulite facies temperatures and are formed in a colder lower crust outside the arc, preserved by the Guapotn-Mancagu Gneiss. Back-arc formation was followed by inversion and thickening of the basin. The three units that form the modern-day Garzn Massif, were juxtaposed upon each other during collision (at ca. 1,000 Ma) and exhumation. The collision leading to the deformation of the studied area is part of the Grenville orogeny leading to the amalgamation of Rodinia.},
  language  = {en}
}
@article{OberhaensliBousquetGoffe2003,
  author    = {Oberh{\"a}nsli, Roland and Bousquet, Romain and Goffe, B.},
  title     = {Comment to "Chloritoid composition and formation in the eastern Central Alps : a comparison between Penninic and Helvetic occurrences" by M. Rahn, M. Steinmann and M. Frey},
  issn      = {0036-7699},
  year      = {2003},
  language  = {en}
}
@article{OmraniMoazzenOberhaensli2018,
  author    = {Omrani, Hadi and Moazzen, Mohssen and Oberh{\"a}nsli, Roland},
  title     = {Geodynamic evolution of the Sabzevar zone, northern central Iranian micro-continent},
  series = {Mineralogy and petrology},
  volume    = {112},
  journal   = {Mineralogy and petrology},
  number    = {1},
  publisher = {Springer},
  address   = {Wien},
  issn      = {0930-0708},
  doi       = {10.1007/s00710-017-0505-3},
  pages     = {65 -- 83},
  year      = {2018},
  abstract  = {The Northern Central Iranian Micro-continent (CIM) represents Neotethys-related oceanic crust remnants, emplaced due to convergence between CIM and Eurasia plates during Eocene. Mafic and ultramafic units are exposed along the northern part of the CIM in the Sabzevar area. The geology and field relation of Sabzevar ophiolite indicate northward subduction of the Sabzevar basin. The average whole rock chemistry of mafic (gabbros) and ultramafic samples (lherzolite, harzburgite and dunite) is characterized by a range of MgO of 11.16-31.88, CaO 5.22-11.53 and Al2O3 2.77-14.57, respectively. Low LREE/HREE ratio of ultramafic samples is accompanied by enrichment of large ion lithophile elements (LILE) such as Sr, Pb and K. Mafic samples show two distinct groups with low and high LREE/HREE ratios. The spider diagram of mafic samples indicates enrichment in Sr, Pb and K and depletion in REE. Petrological and geochemical evidence and field relations show that the mafic rocks formed in a supra-subduction zone setting. Petrological studies reveal the role of fractional crystallization and assimilation effect by released fluids during subduction related generation of the Sabzevar mafic rocks. We suggest that the studied mafic rocks likely represent the basement of an initial island arc, which was generated in a supra-subduction zone setting within the Neotethys branch of the Sabzevar Ocean at the north of CIM. Copper, gold and chromite mineralizations are studied in relation to island arc setting and supra-subduction environment. Similarities in lithology, ophiolite age and mineralization between Sabzevar ophiolite and Bardaskan-Torbat Heydariyeh ophiolites testify for their separation due to rotation (or faulting) of the Central Iranian Micro-continent.},
  language  = {en}
}
@article{DoraniArvinOberhaenslietal.2017,
  author    = {Dorani, Maryam and Arvin, Mohsen and Oberh{\"a}nsli, Roland and Dargahi, Sara},
  title     = {P-T evolution of metapelites from the Bajgan complex in the Makran accretionary prism, south eastern Iran},
  series = {Chemie der Erde : interdisciplinary journal for chemical problems of the geo-sciences and geo-ecology = Geochemistry},
  volume    = {77},
  journal   = {Chemie der Erde : interdisciplinary journal for chemical problems of the geo-sciences and geo-ecology = Geochemistry},
  number    = {3},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0009-2819},
  doi       = {10.1016/j.chemer.2017.07.004},
  pages     = {459 -- 475},
  year      = {2017},
  abstract  = {The Bajgan Complex, one of the basement constituents of the arc massif in Iranian Makran forms a rugged, deeply incised terrain. The complex consists of pelitic schists with minor psammitic and basic schists, calc silicate rocks, amphibolites, marbles, metavolcanosediments, mafic and felsic intrusives as well as ultramafic rocks. Metapelitic rocks show an amphibolite facies regional metamorphism and contain garnet, biotite, white mica, quartz, albite ± rutile ± apatite. Thermobarometry of garnet schist yields pressure of more than 9 kbar and temperatures between 560 and 675 °C. The geothermal gradient obtained for the peak of regional metamorphism is 19 °C/km, corresponding to a depth of ca. 31 km. Replacement of garnet by chlorite and epidote suggest greenschist facies metamorphism due to a decrease in temperature and pressure through exhumation and retrograde metamorphism (370-450 °C and 3-6 kbar). The metapelitic rocks followed a 'clockwise' P-T path during metamorphism, consistent with thermal decline following tectonic thickening. The formation of medium-pressure metamorphic rocks is related to presence of active subduction of the Neotethys Oceanic lithosphere beneath Eurasia in the Makran.},
  language  = {en}
}
@article{Oberhaensli2020,
  author    = {Oberh{\"a}nsli, Roland},
  title     = {Deep-time Digital Earth (DDE) the first IUGS big science program},
  series = {Journal of the Geological Society of India},
  volume    = {95},
  journal   = {Journal of the Geological Society of India},
  number    = {3},
  publisher = {Springer India},
  address   = {New Delhi},
  issn      = {0016-7622},
  doi       = {10.1007/s12594-020-1420-5},
  pages     = {223 -- 226},
  year      = {2020},
  language  = {en}
}
@article{WawrzenitzRomerOberhaenslietal.2006,
  author    = {Wawrzenitz, Nicole and Romer, Rolf L. and Oberh{\"a}nsli, Roland and Dong, Shuwen},
  title     = {Dating of subduction and differential exhumation of UHP rocks from the Central Dabie Complex (E-China) : constraints from microfabrics, Rb-Sr and U-Pb isotope systems},
  doi       = {10.1016/j.lithos.2005.12.001},
  year      = {2006},
  abstract  = {The correlation of deformation fabrics and metamorphic reactions with geochronologic data of UHP metamorphic rocks demonstrate that the multistage subduction and exhumation history of the Central Dabie Complex requires rapid subduction and rapid initial exhumation. Moreover, these data show that volume diffusion is not the major resetting mechanism of radiogenic isotope systems. Thus, our age data do not simply reflect a thermal/cooling history. In the investigated section, the maximum age for UHP is given by the 244 +/- 3 Ma (2 sigma) U-Pb age of a pre-UHP titanite phenocryst that survived UHP metamorphism and subsequent tectonometamorphic events. A minimum age for UHP is set by the 238 +/- 1 Ma (2 sigma) U-238-Pb-206 mineral isochron age of titanite and cogenetic epidote. These minerals formed from local partial melts during ascent and their age suggests fast exhumation and emplacement in the middle crust. In the period of ca. 238-218 Ma, the UHP terrain records HT metamorphism, local partial melting, and extensive pervasive strain below the eclogite (jd+grt) stability field. Exhumation was polyphase with a first phase of fast exhumation, succeeded by episodes of HT metamorphism and concomitant deformation at deep/mid crustal level between 238 and 218 Ma. Slow exhumation related to the final emplacement of tectonic units along greenschist facies shear zones did not cease before ca. 209-204 Ma. The resetting and homogenization of radiogenic isotope systems were aided by dissolution precipitation creep, which was the dominant deformation mechanism in quartz-feldspar rocks, in combination with fluid influx. (c) 2005 Elsevier B.V. All rights reserved},
  language  = {en}
}
@article{CandanCetinkaplanOberhaenslietal.2005,
  author    = {Candan, O. and Cetinkaplan, Mete and Oberh{\"a}nsli, Roland and Rimmele, Gaetan and Akal, Cemal B.},
  title     = {Alpine high-P/low-T metamorphism of the Afyon Zone and implications for the metamorphic evolution of Western Anatolia, Turkey},
  issn      = {0024-4937},
  year      = {2005},
  abstract  = {Carpholite+chloritoid+pyrophyllite association occurs widely in the Triassic metaclastic rocks of the Afyon Zone in west-central Turkey. Fe-Mg-carpholite is associated with rare aragonite pseudomorphs and glaucophane in marbles and metabasites, respectively. The Afyon Zone consists stratigraphically of a Pan-African basement and an overlying Mesozoic cover sequence. The Pan-African basement, which shows Barrovian-type amphibolite-facies metamorphism, comprises garnet-mica schists, intruded by sodic amphibole-bearing metagabbros and leucocratic metagranites. It is unconformably overlain by a continuous metasedimentary sequence extending from Triassic to early Palaeocene. This cover sequence begins with metaconglomerates, which pass upwards into phyllites. Fe-Mg-carpholite occurs within this metaclastic sequence as rosette-like crystals in metapelites and fibres in quartz segregations. The metaclastic rocks are succeeded by metamorphosed platform carbonates, grading into Latest Mesozoic metamorphosed pelagic limestones, which in turn progress up to a Late Mesozoic-Early Tertiary olistostrome. This sequence is tectonically overlain by the blueschists of the Tavsanh Zone. Fe-Mg-carpholite-bearing assemblages imply temperatures of about 350 degrees C and minimum pressures of 6-9 kbar, corresponding to burial depths of about 30 km for the Mesozoic passive continental margin sediments and the underlying Pan-African supracrustal metasediments and metaintrusives. The metamorphic rocks of the Afyon Zone are unconformably overlain by Upper Palaeocene-Lower Eocene sedimentary rocks, indicating a Paleocene age for the regional HP/LT metamorphism. This implies continuous younging of HP/LT metamorphism in the Anatolides related to northward subduction of the Anatolide-Tauride platform beneath the Sakarya Zone. From north to south this involved the Tavsanh Zone (Campanian, 80 +/- 5 Ma), the Afyon Zone (Palaeocene?), the Menderes Massif (Middle Eocene) and the Lycian Nappes (Late Cretaceous-Eocene?), all of which were probably derived from the frontal part of the Anatolide-Tauride platform. (c) 2005 Elsevier B.V. All rights reserved},
  language  = {en}
}
@article{RimmeleParraGoffeetal.2005,
  author    = {Rimmele, Gaetan and Parra, T. and Goffe, B. and Oberh{\"a}nsli, Roland and Jolivet, L. and Candan, O.},
  title     = {Exhumation paths of high-pressure-low-temperature metamorphic rocks from the Lycian Nappes and the Menderes Massif (SW Turkey) : a multi-equilibrium approach},
  issn      = {0022-3530},
  year      = {2005},
  abstract  = {The Menderes Massif and the overlying Lycian Nappes occupy an extensive area of SW Turkey where high-pressure- low-temperature metamorphic rocks occur. Precise retrograde P-T paths reflecting the tectonic mechanisms responsible for the exhumation of these high-pressure-low-temperature rocks can be constrained with multi-equilibrium P-T estimates relying on local equilibria. Whereas a simple isothermal decompression is documented for the exhumation of high-pressure parageneses from the southern Menderes Massif, various P-T paths are observed in the overlying Karaova Formation of the Lycian Nappes. In the uppermost levels of this unit, far from the contact with the Menderes Massif, all P-T estimates depict cooling decompression paths. These high-pressure cooling paths are associated with top-to-the-NNE movements related to the Akcakaya shear zone, located at the top of the Karaova Formation. This zone of strain localization is a local intra-nappe contact that was active in the early stages of exhumation of the high-pressure rocks. In contrast, at the base of the Karaova Formation, along the contact with the Menderes Massif, P-T calculations show decompressional heating exhumation paths. These paths are associated with severe deformation characterized by top-to-the-east shearing related to a major shear zone (the Gerit shear zone) that reflects late exhumation of high-pressure parageneses under warmer conditions},
  language  = {en}
}
@article{JolivetRimmeleOberhaenslietal.2004,
  author    = {Jolivet, L. and Rimmele, Gaetan and Oberh{\"a}nsli, Roland and Goffe, B. and Candan, O.},
  title     = {Correlation of syn-orogenic tectonic and metamorphic events in the Cyclades, the Lycian nappes and the Menderes massif : Geodynamic implications},
  issn      = {0037-9409},
  year      = {2004},
  abstract  = {The recent discovery of HP-LT parageneses in the basal unit of the Lycian nappes and in the Mesozoic cover of the Menderes massif leads us to reconsider and discuss the correlation of this region with the nearby collapsed Hellenides in the Aegean domain. Although similarities have long been pointed Out by various authors, a clear correlation has not yet been proposed and most authors insist more on differences than similarities. The Menderes massif is the eastern extension of the Aegean region but it has been less severely affected by the Aegean extension during the Oligo-Miocene. It would thus be useful to use the structure of the Menderes massif as an image of the Aegean region before a significant extension has considerably reduced its crustal thickness. But the lack of correlation between the two regions has so far hampered Such comparisons. We describe the main tectonic units and metamorphic events in the two regions and propose a correlation. We then show possible sections of the two regions before the Aegean extension and discuss the involvement of continental basement in the Hellenic accretionary complex. In our interpretation the Hellenic- Tauric accretionary complex was composed of stacked basement and cover units which underwent variable P-T histories. Those which were not exhumed early enough later followed a high-T evolution which led to partial melting in the Cyclades during post-orogenic extension. Although the Menderes massif contains a larger volume of basement units it does not show significant evidence for the Oligo-Miocene migmatites observed in the center of the Cyclades suggesting that crustal partial melting is strictly related to post-orogenic extension in this case},
  language  = {en}
}
@article{LiuJahnDongetal.2003,
  author    = {Liu, Xiaochun and Jahn, Bor-Ming and Dong, Shuwen and Li, Huimin and Oberh{\"a}nsli, Roland},
  title     = {Neoproterozoic granitoid did not record ultrahigh-pressure metamorphism from the Southern Dabieshan of China},
  issn      = {0022-1376},
  year      = {2003},
  abstract  = {It has been often debated whether all granitic gneisses associated with coesite-bearing eclogites in southern Dabieshan, China, have also been subjected to ultrahigh-pressure (UHP) metamorphism. We show here that a metagranitoid adjacent to the Bixiling eclogite-ultramafic complex has preserved primary granitic textures and an igneous mineral assemblage of biotite + plagioclase + microcline + quartz + allanite +/- amphibole. The absence of UPH recrystallization for the metagranitoid is particularly manifested by the conservation of euhedral-zoned plagioclase phenocrysts, the lack of corona garnets around igneous biotite, and the presence of an igneous mineral assemblage in zircons. The only metamorphic overprint was the epidote-amphibolite facies metamorphism characterized by the assemblage of biotite + phengiticmica + epidote + albite + K-feldspar + quartz +/- amphibole Metamorphic conditions are estimated at ca. 550degrees-680degreesC and 6-13 kbar for the metagranitoid and its amphibolitic enclave. Geochemically, the metagranitoid is similar to its country gneiss and shows an affinity to volcanic arc granitoid. Zircon U-Pb dating suggests that the Bixiling metagranitoid was emplaced during the Neoproterozoic (729+/-4 Ma), when most other granitic rocks and the protoliths of eclogite were also formed in Dabieshan. Taking into account the discovery of non-UHP granitic gneisses in other places, we argue that part of Neoproterozoic granitic rocks in the Dabieshan and Sulu terranes have escaped UHP metamorphism during the Triassic deep subduction of the continental crust as a consequence of a lack of penetrative deformation and fluid-rock interaction},
  language  = {en}
}
@article{MesbahiMohajjelOberhaenslietal.2017,
  author    = {Mesbahi, Fatemeh and Mohajjel, Mohammad and Oberh{\"a}nsli, Roland and Moazzen, Mohsen},
  title     = {The mafic rocks along the North Tabriz Fault, possible remnants of Neo-Tethys oceanic crust in NW Iran},
  series = {Geopersia},
  volume    = {7},
  journal   = {Geopersia},
  publisher = {Graduate Faculty of Environment, University of Theran},
  address   = {Tehran},
  issn      = {2228-7817},
  doi       = {10.22059/geope.2017.232747.648323},
  pages     = {301 -- 311},
  year      = {2017},
  abstract  = {The North Tabriz Fault is seismologically an active fault with current right lateral strike-slip movements. Restricted mafic to intermediate Fate Cretaceous igneous rocks are exposed along the North Tabriz Fault. Whole rock and clinopyroxene phenocrysts geochemistry were studied in order to characterize the petrogenesis of these mafic rocks and their possible relation to an oceanic crust. The results indicate a tholeiitic parental magma that formed in an evolved mid-ocean ridge tectonic setting similar to the Iceland mid-Atlantic ridge basalts. The ocean floor basalt characteristics give evidence of an oceanic crust along the North Tabriz Fault. Therefore, the trend of the North Tabriz Fault more likely marks a suture zone related to the closure of a branch of the Neo-Tethys Ocean in the NW Iran. This fault, in addition to the Caucasus and Zagros suture zones, compensates an important part of the convergence between the Arabian and Eurasian plates resulting from the Red Sea divergence. It is concluded that the North Tabriz Fault appears to be possible southeastern continuation of the North Anatolian suture zone.},
  language  = {en}
}
@article{AliGiurcoArndtetal.2017,
  author    = {Ali, Saleem H. and Giurco, Damien and Arndt, Nicholas and Nickless, Edmund and Brown, Graham and Demetriades, Alecos and Durrheim, Ray and Enriquez, Maria Amelia and Kinnaird, Judith and Littleboy, Anna and Meinert, Lawrence D. and Oberh{\"a}nsli, Roland and Salem, Janet and Schodde, Richard and Schneider, Gabi and Vidal, Olivier and Yakovleva, Natalia},
  title     = {Mineral supply for sustainable development requires resource governance},
  series = {Nature : the international weekly journal of science},
  volume    = {543},
  journal   = {Nature : the international weekly journal of science},
  publisher = {Nature Publ. Group},
  address   = {London},
  issn      = {0028-0836},
  doi       = {10.1038/nature21359},
  pages     = {367 -- 372},
  year      = {2017},
  abstract  = {Successful delivery of the United Nations sustainable development goals and implementation of the Paris Agreement requires technologies that utilize a wide range of minerals in vast quantities. Metal recycling and technological change will contribute to sustaining supply, but mining must continue and grow for the foreseeable future to ensure that such minerals remain available to industry. New links are needed between existing institutional frameworks to oversee responsible sourcing of minerals, trajectories for mineral exploration, environmental practices, and consumer awareness of the effects of consumption. Here we present, through analysis of a comprehensive set of data and demand forecasts, an interdisciplinary perspective on how best to ensure ecologically viable continuity of global mineral supply over the coming decades.},
  language  = {en}
}
@article{SheikholeslamiOberhaensliGhassemi2019,
  author    = {Sheikholeslami, Mohammad Reza and Oberh{\"a}nsli, Roland and Ghassemi, Mohammad R.},
  title     = {Transpression tectonics in the eastern Binalud Mountains, northeast Iran; Insight from finite strain analysis, vorticity and Ar-40/Ar-39 dating},
  series = {Journal of Asian earth sciences},
  volume    = {179},
  journal   = {Journal of Asian earth sciences},
  publisher = {Elsevier},
  address   = {Oxford},
  issn      = {1367-9120},
  doi       = {10.1016/j.jseaes.2019.04.014},
  pages     = {219 -- 237},
  year      = {2019},
  abstract  = {Different tectonic episodes from Late Triassic to recent times in the eastern Binalud Mountains have resulted from convergence and transpression between the Turan and Central Iran plates. Heterogeneous deformation and variable portions of pure and simple shear, demonstrated by finite strain and vorticity analysis in the Mashhad metamorphic rocks, indicate strain partitioning during the first tectonic episode. Modern strain partitioning is characterized by reverse and strike-slip faulting along the Neyshabur fault system and Shandiz fault zone in the southern and northern flanks of the eastern Binalud, respectively. Time-transgressive regional deformation migrated from the hinterland of the belt into the foreland basin, from northeast to the southwest of the mountains. Different generations of deformation resulted in obliteration of the subduction-related accretionary wedge, and growth of an orogenic wedge resulted from collision between the Central Iran and Turan plates.},
  language  = {en}
}
@article{SchefflerImmenhauserPourteauetal.2019,
  author    = {Scheffler, Franziska and Immenhauser, Adrian and Pourteau, Amaury and Natalicchio, Marcello and Candan, Osman and Oberh{\"a}nsli, Roland},
  title     = {A lost Tethyan evaporitic basin},
  series = {Sedimentology : the journal of the International Association of Sedimentologists},
  volume    = {66},
  journal   = {Sedimentology : the journal of the International Association of Sedimentologists},
  number    = {7},
  publisher = {Wiley},
  address   = {Hoboken},
  issn      = {0037-0746},
  doi       = {10.1111/sed.12606},
  pages     = {2627 -- 2660},
  year      = {2019},
  abstract  = {Ancient evaporite deposits are geological archives of depositional environments characterized by a long-term negative precipitation balance and bear evidence for global ocean element mass balance calculations. Here, Cretaceous selenite pseudomorphs from western Anatolia ('Rosetta Marble') — characterized by their exceptional morphological preservation — and their 'marine' geochemical signatures are described and interpreted in a process-oriented context. These rocks recorded Late Cretaceous high-pressure/low-temperature, subduction-related metamorphism with peak conditions of 1·0 to 1·2 GPa and 300 to 400°C. Metre-scale, rock-forming radiating rods, now present as fibrous calcite marble, clearly point to selenitic gypsum as the precursor mineral. Stratigraphic successions are recorded along a reconstructed proximal to distal transect. The cyclical alternation of selenite beds and radiolarian ribbon-bedded cherts in the distal portions are interpreted as a two type of seawater system. During arid intervals, shallow marine brines cascaded downward into basinal settings and induced precipitation. During more humid times, upwelling-induced radiolarian blooms caused the deposition of radiolarite facies. Interestingly, there is no comparable depositional setting known from the Cenozoic world. Meta-selenite geochemical data (δ13C, δ18O and 87Sr/86Sr) plot within the range of reconstructed middle Cretaceous seawater signatures. Possible sources for the 13C-enriched (mean 2·2 per mille) values include methanogenesis, gas hydrates and cold seep fluid exhalation. Spatially resolved component-specific analysis of a rock slab displays isotopic variances between meta-selenite crystals (mean δ13C 2·2 per mille) and host matrix (mean δ13C 1·3 per mille). The Cretaceous evaporite-pseudomorphs of Anatolia represent a basin wide event coeval with the Aptian evaporites of the Proto-Atlantic and the pseudomorphs share many attributes, including lateral distribution of 600 km and stratigraphic thickness of 1·5 to 2·0 km, with the evaporites formed during the younger Messinian salinity crisis. The Rosetta Marble of Anatolia may represent the best-preserved selenite pseudomorphs worldwide and have a clear potential to act as a template for the study of meta-selenite in deep time.},
  language  = {en}
}
@article{SakiMiriOberhaensli2020,
  author    = {Saki, Adel and Miri, Mirmohammad and Oberh{\"a}nsli, Roland},
  title     = {High temperature - low pressure metamorphism during subduction of Neo-Tethys beneath the Iranian plate},
  series = {Mineralogy and petrology},
  volume    = {114},
  journal   = {Mineralogy and petrology},
  number    = {6},
  publisher = {Springer},
  address   = {Wien [u.a.]},
  issn      = {0930-0708},
  doi       = {10.1007/s00710-020-00721-z},
  pages     = {539 -- 557},
  year      = {2020},
  abstract  = {Subduction of Neo-Tethys oceanic lithosphere beneath the Iranian plate during the Mesozoic formed several igneous bodies of ultramafic to intermediate and felsic composition. Intrusion of these magmas into a regional metamorphic sequence (the Sanandaj-Sirjan Zone) caused partial melting and formation of migmatites with meta-pelitic protoliths. The Alvand complex (west Iran) is a unique area comprising migmatites of both mafic and pelitic protoliths. In this area, the gabbroic rocks contain veins of leucosome at their contact with pyroxenite and olivine gabbro. These leucosomes are geochemically and mineralogically different from leucosomes of the meta-pelitic migmatites and clearly show properties of I-type granites. Microscopic observations and whole rock compositions of the mafic migmatite leucosomes show that migmatization occurred through partial melting of biotite, hornblende and plagioclase. Thermobarometric calculations indicate 800 degrees C and 3.7 kbar for partial melting, although phase diagram modeling demonstrates that the presence of water could decrease the solidus temperature by about 40 degrees C. Our results suggest an asthenospheric magma upwelling as the source of heat for partial melting of the gabbroic rock during subduction of Neo-Tethys oceanic crust under the western edge of the Iranian plate. The present study also reveals relationships between migmatization and formation of S- and I -type granites in the area.},
  language  = {en}
}
@article{SakiMoazzenOberhaensli2012,
  author    = {Saki, Adel and Moazzen, Mohssen and Oberh{\"a}nsli, Roland},
  title     = {Mineral chemistry and thermobarometry of the staurolite-chloritoid schists from Poshtuk, NW Iran},
  series = {Geological magazine},
  volume    = {149},
  journal   = {Geological magazine},
  number    = {6},
  publisher = {Cambridge Univ. Press},
  address   = {New York},
  issn      = {0016-7568},
  doi       = {10.1017/S0016756812000209},
  pages     = {1077 -- 1088},
  year      = {2012},
  abstract  = {The Poshtuk metapelitic rocks in northwestern Iran underwent two main phases of regional and contact metamorphism. Microstructures, textural features and field relations indicate that these rocks underwent a polymetamorphic history. The dominant metamorphic assemblage of the metapelites is garnet, staurolite, chloritoid, chlorite, muscovite and quartz, which grew mainly syntectonically during the later contact metamorphic event. Peak metamorphic conditions of this event took place at 580 degrees C and similar to 3-4 kbar, indicating that this event occurred under high-temperature and low-pressure conditions (HT/LP metamorphism), which reflects the high heat flow in this part of the crust. This event is mainly controlled by advective heat input through magmatic intrusions into all levels of the crust. These extensive Eocene metamorphic and magmatic activities can be associated with the early Alpine Orogeny, which resulted in this area from the convergence between the Arabian and Eurasian plates, and the Cenozoic closure of the Tethys oceanic tract(s).},
  language  = {en}
}
@article{SakiMiriOberhaensli2021,
  author    = {Saki, Adel and Miri, Mirmohammad and Oberh{\"a}nsli, Roland},
  title     = {Pseudosection modelling of the Precambrian meta-pelites from the Poshtuk area, NW Iran},
  series = {Periodico di mineralogia : an international journal of mineralogy, crystallography, geochemistry, ore deposits, petrology, volcanology and applied topics on environment, archaeometry and cultural heritage / Dipartimento di Scienze della Terra, Universit{\`a} degli Studi di Roma la Sapienza},
  volume    = {90},
  journal   = {Periodico di mineralogia : an international journal of mineralogy, crystallography, geochemistry, ore deposits, petrology, volcanology and applied topics on environment, archaeometry and cultural heritage / Dipartimento di Scienze della Terra, Universit{\`a} degli Studi di Roma la Sapienza},
  number    = {3},
  publisher = {Bardi},
  address   = {Roma},
  issn      = {0369-8963},
  doi       = {10.13133/2239-1002/16632},
  pages     = {325 -- 340},
  year      = {2021},
  abstract  = {Precambrian meta-pelites of the Poshtuk area in northwest Iran contain the prograde mineral assemblage staurolite-garnet-chloritoid-muscovite-biotite that was replaced by the assemblage garnet-staurolite-chlorite-muscovite-biotite at peak metamorphic condition. Whole-rock compositions reveal that high Fe, Al and Mn contents of their protolith rendered them prone to form these assemblages. Pseudosections calculated in KFMASH, MnKFMASH, and MnNCKFMASHO systems were used to investigate the P-T evolution of the samples. They clearly show the significant effect of MnO on the stability of the chloritoid-bearing assemblages and the formation of garnet through consumption of chlorite and chloritoid. The pseudosection in a T- aH(2)O diagram shows that the studied assemblage could be stable only at a(H2O)>0.8. X-Mg isopleths for garnet and biotite point to peak P-T conditions of about 3.75 kbar and 575 degrees C. Chloritoid stability is overstepped with such conditions. This can be attributed to thermal perturbation due to plutonism. It is concluded, metamorphism was primarily controlled by advective heat from magmatic intrusions in the Poshtuk area. The Precambrian basement complexes were extensively overprinted by the Pan-African Orogeny as well as younger magmatic and metamorphic activities associated to Alpine Orogeny during convergence of Arabian and Eurasian plate.},
  language  = {en}
}
@article{RoetzlerRomerBudzinskietal.2004,
  author    = {R{\"o}tzler, Jochen and Romer, R. L. and Budzinski, Hubertus and Oberh{\"a}nsli, Roland},
  title     = {Ultrahigh-temperature high-pressure granulites from Tirschheim, Saxon Granulite Massif, Germany : P-T-t path and geotectonic implications},
  issn      = {0935-1221},
  year      = {2004},
  abstract  = {The Saxon granulites, the type granulite locality, were deeply buried, extremely heated and then rapidly exhumed during the Variscan Orogeny; thus their evolution differs from many granulites elsewhere. The peak-metamorphic assemblages of layered felsic-mafic granulites from a 500 m deep borehole consist of garnet, kyanite, rutile, ternary feldspar and quartz in felsic granulite, and garnet, omphacite, titanite, ternary feldspar and quartz in mafic granulite. A minimum temperature of 1000-1020degreesC, calculated from reintegrated hypersolvus feldspar in felsic and mafic granulites, is consistent with the highest temperature estimates from garnet-clinopyroxene equilibria. Various equilibria in felsic and mafic granulites record a peak pressure of about 23 kbar. Diffusion zoning and local homogenisation of minerals reflect near-isothermal decompression that preceded cooling and partial hydration at medium- to low-pressure. U-Pb dating of titanite yields an age of peak metamorphism at 340.7+/-0.8 Ma (2sigma). However, chemical inheritance from precursor rutile and post-peak Pb loss are also evident, suggesting a protolith age of 499+/-2 Ma (2sigma) and partial resetting down to an age of 333+/-2 Ma (2sigma). Rb-Sr mica ages of 333.2+/-3.3 Ma (2sigma) are interpreted as dating cooling through about 620degreesC. Hence the Saxon granulites were exhumed to the upper crust during the short period of 6-11 Ma, which corresponds to average exhumation and cooling rates of 10 mm/year and 50degreesC/Ma, respectively. Such rapid exhumation is inconsistent with recent numerical models that assume foreland- directed transport of the Saxon granulites in the lower crust followed by extensional unroofing. Instead, high-pressure rocks of the Saxon Granulite Massif and the nearby Erzgebirge experienced a buoyant rise to the middle crust and subsequent juxtaposition with structurally higher units along a series of medium- to low-pressure detachment faults},
  language  = {en}
}
@article{MoazzenOberhaensliHajialioghlietal.2009,
  author    = {Moazzen, Mohssen and Oberh{\"a}nsli, Roland and Hajialioghli, Robab and Moeller, Andreas and Bousquet, Romain and Droop, Giles and Jahangiri, Ahmad},
  title     = {Peak and post-peak P-T conditions and fluid composition for scapolite-clinopyroxene-garnet calc-silicate rocks from the Takab area, NW Iran},
  issn      = {0935-1221},
  doi       = {10.1127/0935-1221/2009/0021-1887},
  year      = {2009},
  abstract  = {The Takab calcareous rocks of northwest Iran crop out in association with a variety of metamorphic rocks including mafic granulites, amphibolites, granitic gneisses, pelitic schists and meta-ultramafic rocks. They can be divided into marbles and calc-silicate rocks on the basis of the dominance of calcite/dolomite and silicate minerals. Dominant peak metamorphic granulite facies assemblage of calc-silicate rocks is Scp + Grt(I) + Cpx + Cal + Qtz +/- Hbl(I). The decrease of temperature and pressure during exhumation produced post-peak metamorphic assemblages. Coronal garnet (Grt II) in the calc-silicate rocks was produced by retrograde reactions consuming plagioclase and clinopyroxene, while peak metamorphic garnet (Grt I) occurs as preserved xenoblastic grains in calcite and/or plagioclase (Pl II). Regional metamorphism took place at 740 degrees C and X-CO2 similar to 0.9. Garnet-clinopyroxene-plagioclase-quartz (GADS) barometry yields a pressure of 8-9 kbar, corresponding to a depth of ca. 24-27 km. This was followed by decompression and hydration during exhumation of the crustal rocks up to the surface. Secondary phases such as garnet (II) hornblende (II), plagioclase (II), zoisite and titanite (II) constrain the temperature and pressure of post-peak metamorphism as similar to 600 degrees C and similar to 6 kbar respectively and a fluid with XCO2 as low as 0.4. Halogens were near-absent during the peak metamorphic stage. The scapolite and hornblende crystallized underpeak metamorphic conditions contain very low fluorine and chlorine, whereas relatively high fluorine (similar to 0.8 wt\%) in the titanite (II) and hornblende (II) suggests a possible infiltration of F-rich fluids into the calc-silicate rocks during retrogression. It is interpreted to be related to external fluids released during crystallisation of granitoid magmas and/or leucosome patches in the adjacent migmatites.},
  language  = {en}
}
@article{OberhaensliKoralayCandanetal.2013,
  author    = {Oberh{\"a}nsli, Roland and Koralay, E. and Candan, Osman and Pourteau, Amaury and Bousquet, Romain},
  title     = {Late cretaceous eclogitic high-pressure relics in the Bitlis Massif},
  series = {Geodinamica acta : revue de g{\´e}ologie dynamique et de g{\´e}ographie physique},
  volume    = {26},
  journal   = {Geodinamica acta : revue de g{\´e}ologie dynamique et de g{\´e}ographie physique},
  number    = {3-4},
  publisher = {Routledge, Taylor \& Francis Group},
  address   = {Abingdon},
  issn      = {0985-3111},
  doi       = {10.1080/09853111.2013.858951},
  pages     = {175 -- 190},
  year      = {2013},
  abstract  = {A new occurrence of eclogites was found in the Kesandere valley in the eastern most part of the Bitlis complex, SE Anatolia. These high-pressure (HP) relics were preserved in calc-arenitic metasediments within the high-grade metamorphic basement of the Bitlis complex. The eclogitic parageneses were strongly overprinted during decompression and heating. These new eclogites locality complements the evidence of blueschist-facies metamorphism documented recently in the meta-sedimentary cover sequence of this part of the Bitlis complex. Thermodynamic calculations suggest peak conditions of ca. 480-540 degrees C/1.9-2.4GPa. New U/Pb dates of 84.4 +/-.9 and 82.4 +/-.9Ma were obtained on zircons from two Kesandere eclogite samples. On the basis of geochemical criteria, these dates are interpreted to represent zircon crystallization during the eclogitic peak stage. Kesandere eclogites differ from those previously described in the western Bitlis complex (Mt. Gablor locality) in terms of lithologic association, protolithic origin, and peak P-T conditions (600-650 degrees C/1.0-2.0GPa, respectively). On the other hand, eclogitic metamorphism of Kesandere metasediments occurred shortly before blueschist-facies metamorphism of the sedimentary cover (79-74Ma Ar-40/Ar-39 white mica). Therefore, the exhumation of Kesandere eclogites started between ca. 82 and 79Ma, while the meta-sedimentary cover was being buried. During this short time span, Kesandere eclogite were likely uplifted from similar to 65 to 35km depth, indicating a syn-subduction exhumation rate of similar to 4.3mm/a. Subsequently, eclogite- and blueschist-facies rocks were likely retrogressed contemporarily during collision-type metamorphism (around 72-69Ma). The Bitlis HP rocks thus sample a subduction zone that separated the Bitlis-Puturge (Bistun?) block from the South-Armenian block, further north. To the south, Eocene metasediments of the Urse formation are imbricated below the Bitlis complex. They contain (post Eocene) blueschists, testifying separation from the Arabian plate and southward migration of the subduction zone. The HT overprint of Kesandere eclogites can be related to the asthenospheric flow provoked by subducting slab retreat or break off.},
  language  = {en}
}
@article{ZakariadzeKarpenkoBazylevetal.1998,
  author    = {Zakariadze, G. S. and Karpenko, S. F. and Bazylev, B. A. and Adamia, S. A. and Oberh{\"a}nsli, Roland and Solov'eva, N. V. and Ljialikov, A. V.},
  title     = {Fragments of Pan-African paleooceanic complexes in the Dzirula salient of the Transcaucassian crystalline massif (petroloy, geochemistry, Sm-Nd age, problems of origin)},
  year      = {1998},
  language  = {en}
}
@article{KronerOberhaensliMezgeretal.1998,
  author    = {Kroner, Alfred and Oberh{\"a}nsli, Roland and Mezger, Klaus and Teklay, M.},
  title     = {Geochemistry, Pb-Pb single zircon ages and Nd-Sr isotope composition of Precambrian rocks from southern and eastern Ethiopia: implications for crustal evolution in east Africa},
  year      = {1998},
  language  = {en}
}
@article{HoferBreyOberhaensli1996,
  author    = {Hofer, H. E. and Brey, G. P. and Oberh{\"a}nsli, Roland},
  title     = {The determination of the oxidation state of iron in synthetic garnets by X-ray spectroscopy with the electron microprobe},
  year      = {1996},
  language  = {en}
}
@article{RettingerSchorscherOberhaensli1996,
  author    = {Rettinger, Rolf and Schorscher, H. D. and Oberh{\"a}nsli, Roland},
  title     = {Geothermobarometric correlation of geothermobarometers and petrogenetic modelling in Ne-Quadrilatero Ferrifero, Minas Gerais, Brazil},
  year      = {1996},
  language  = {en}
}
@article{FoersterFoersterOberhaenslietal.2010,
  author    = {F{\"o}rster, Hans-J{\"u}rgen and F{\"o}rster, Andrea and Oberh{\"a}nsli, Roland and Stromeyer, Dietrich},
  title     = {Lithospheric composition and thermal structure of the Arabian Shield in Jordan},
  issn      = {0040-1951},
  doi       = {10.1016/j.tecto.2008.11.014},
  year      = {2010},
  abstract  = {In this paper, a unique set of samples from the uppermost crust down to the lithospheric mantle of Jordan is analyzed for composition and petrophysical properties (density. thermal conductivity, radiogenic heat production) These data, covering a vertical section of almost 65 km. are used in conjunction with surface heat flow to generate a detailed and comprehensive lithospheric thermal model that reflects the conditions of the Arabian Shield (AS) prior to the post- Oligocene onset of lithosphere thinning and Voluminous basaltic volcanism. The pre-Miocene model geotherms, based on conductive surface heat flows of 55 and 60 mW m(-2). (a) meet the range of lithosphere-asthenosphere boundary depths of 110-160 km known from seismology, (b) conform to results of thermomechanical models on the on.-in of the Dead Sea basin that started in Miocene time. and (c) are consistent with typical xenolith-derived geotherms for terranes of similar age and lithospheric thickness. Moho temperatures (at depths between 35 and 40 km) of the AS in pre-Miocene times were most likely in the order of 530-650 degrees C, with mantle heat flows averaging between 24 and 29 mW m(-2) Results contradict former views of the late Proterozoic/early Cambrian-stabilized AS being an anomalously cold terrane A "cold" thermal structure inferred from previously measured low surface heat flows (generally <= 45 mW m(-2)) is inconsistent with the thickness, composition, and petrophysical properties of the stable lithosphere of the shield.},
  language  = {en}
}
@article{LambertDurrheimGodoyetal.2013,
  author    = {Lambert, Ian and Durrheim, Ray and Godoy, Marcio and Kota, Mxolisi and Leahy, Pat and Ludden, John and Nickless, Edmund and Oberh{\"a}nsli, Roland and Anjian, Wang and Williams, Neil},
  title     = {Resourcing future generations a proposed new IUGS initiative},
  series = {Episodes : journal of international geosciences},
  volume    = {36},
  journal   = {Episodes : journal of international geosciences},
  number    = {2},
  publisher = {Geological Society of India},
  address   = {Bangalore},
  issn      = {0705-3797},
  pages     = {82 -- 86},
  year      = {2013},
  language  = {en}
}
@article{Oberhaensli2013,
  author    = {Oberh{\"a}nsli, Roland},
  title     = {High-Pressure - Low-temperature evolution in the Indus-Tsangpo suture along the Kohistan Arc (Kaghan Valley, NE Pakistan)},
  series = {Episodes : journal of international geosciences},
  volume    = {36},
  journal   = {Episodes : journal of international geosciences},
  number    = {2},
  publisher = {Geological Society of India},
  address   = {Bangalore},
  issn      = {0705-3797},
  pages     = {87 -- 93},
  year      = {2013},
  abstract  = {North of Naran in the Kaghan Valley (NE Pakistan), the metabasites of the melange units lying below the Kohistan Arc, contain glaucophane. Typically they reflect blueschist-metamorphic conditions (0.7 GPa, 400 degrees C). Associated graphite-rich metapelites with quartz veins underwent upper greenschist to amphibolite conditions. Near Naran we observed in quartz grains of type 3 veins first minute relics of Fe-Mg carpholite indicating earlier blueschist metamorphic conditions. P-T estimates indicate 1.2-1.6 GPa at 380-410 degrees C, pressure and temperature values typical for blueschist metamorphic conditions. Changes in mineral assemblages and abundant sudoite component in associated chlorite point to a pressure drop after peak I conditions. We assign the observed changes to peak I conditions occurring during a Cretaceous subduction event. Temperatures estimated with Raman graphite-thermometry clearly indicate a significant subsequent rise of post-peak I temperatures up to 500 degrees C. This is compatible with the amphibolite peak II assigned to the Tertiary continental collision that leads to subduction of the Indian Plate and ultra-high-pressure metamorphism. During subduction the blueschist metamorphic metapelites underwent dehydration, which caused alteration in the overlying lithospheric mantle. In a hydrated lithospheric mantle density is significantly reduced which enhanced subduction of continental crust in the Higher Himalaya. This P-T evolution is typical for a collision orogen with a high plateau but remarkably contrasting findings from Eastern Anatolia, where plateau building is in "statu nascendi" (e.g., Oberh{\"a}nsli et al., 2010).},
  language  = {en}
}
@article{OmraniMoazzenOberhaenslietal.2013,
  author    = {Omrani, Hadi and Moazzen, Mohssen and Oberh{\"a}nsli, Roland and Altenberger, Uwe and Lange, Manuela},
  title     = {The Sabzevar blueschists of the North-Central Iranian micro-continent as remnants of the Neotethys-related oceanic crust subduction},
  series = {International journal of earth sciences},
  volume    = {102},
  journal   = {International journal of earth sciences},
  number    = {5},
  publisher = {Springer},
  address   = {New York},
  issn      = {1437-3254},
  doi       = {10.1007/s00531-013-0881-9},
  pages     = {1491 -- 1512},
  year      = {2013},
  abstract  = {The Sabzevar ophiolites mark the Neotethys suture in east-north-central Iran. The Sabzevar metamorphic rocks, as part of the Cretaceous Sabzevar ophiolitic complex, consist of blueschist, amphibolite and greenschist. The Sabzevar blueschists contain sodic amphibole, epidote, phengite, calcite +/- A omphacite +/- A quartz. The epidote amphibolite is composed of sodic-calcic amphibole, epidote, albite, phengite, quartz +/- A omphacite, ilmenite and titanite. The greenschist contains chlorite, plagioclase and pyrite, as main minerals. Thermobarometry of a blueschist yields a pressure of 13-15.5 kbar at temperatures of 420-500 A degrees C. Peak metamorphic temperature/depth ratios were low (similar to 12 A degrees C/km), consistent with metamorphism in a subduction zone. The presence of epidote in the blueschist shows that the rocks were metamorphosed entirely within the epidote stability field. Amphibole schist samples experienced pressures of 5-7 kbar and temperatures between 450 and 550 A degrees C. The presence of chlorite, actinolite, biotite and titanite indicate greenschist facies metamorphism. Chlorite, albite and biotite replacing garnet or glaucophane suggests temperatures of > 300 A degrees C for greenschist facies. The formation of high-pressure metamorphic rocks is related to north-east-dipping subduction of the Neotethys oceanic crust and subsequent closure during lower Eocene between the Central Iranian Micro-continent and Eurasia (North Iran).},
  language  = {en}
}
@article{ZakariadzeKarpenkoBazylevetal.1998,
  author    = {Zakariadze, G. S. and Karpenko, S. F. and Bazylev, B. A. and Adamia, S. A. and Oberh{\"a}nsli, Roland and Solov'eva, N. A. and Lyalikov, A. V.},
  title     = {Petrology, geochemistry, and Sm-Nd age of the pre-Late Hercynian paleooceanic complex of the Dzirula salient, Transcaucasian Massif},
  year      = {1998},
  language  = {en}
}
@article{ToksoyKoeksalOberhaensliGoencueoglu2009,
  author    = {Toksoy-Koeksal, Fatma and Oberh{\"a}nsli, Roland and Goencueoglu, M. Cemal},
  title     = {Hydrous aluminosilicate metasomatism in an intra-oceanic subduction zone : implications from the Kurancali (Turkey) ultramafic-mafic cumulates within the Alpine Neotethys Ocean},
  issn      = {0930-0708},
  doi       = {10.1007/s00710-009-0044-7},
  year      = {2009},
  abstract  = {The Kurancali ultramafic-mafic cumulate body, an allochthonous ophiolitic sliver in central Anatolia, is characterized by the presence of abundant hydrous phases (phlogopite, pargasite) besides augitic diopside, plagioclase, and accessory amounts of rutile, sphene, apatite, zircon, and calcite. Based on modes of the essential minerals, the olivine-orthopyroxene-free cumulates are grouped as clinopyroxenite, hydrous clinopyroxenite, phlogopitite, hornblendite, layered gabbro, and diorite. Petrographical, mineralogical and geochemical features of the rocks infer crystallization from a hydrous magma having high-K calcalkaline affinity with slightly alkaline character, and point to metasomatised mantle as the magma source. Our evidence implies that the metasomatising component, which modified the composition of the mantle wedge source rock in an intraoceanic subduction zone, was a H2O, alkali and carbonate-rich aluminosilicate fluid and/or melt, probably derived from a subducted slab. We suggest that the metasomatic agents in the subarc mantle led to the generation of a hydrous magma, which produced the Kurancali cumulates in an island-arc basement in a supra-subduction-zone setting during the closure of the Izmir-Ankara-Erzincan branch of the Alpine Neotethys Ocean.},
  language  = {en}
}
@article{BazylevZakariadzeZhelyazkovaPanayotovaetal.1998,
  author    = {Bazylev, B. A. and Zakariadze, G. S. and Zhelyazkova-Panayotova, M. D. and Solov'eva, N. V. and Oberh{\"a}nsli, Roland},
  title     = {Genetic diversity of ophiolite ultramafics from the crystalline basement of Rhodope massif},
  year      = {1998},
  language  = {en}
}
@article{JolivetGoffeBousquetetal.1998,
  author    = {Jolivet, L. and Goffe, B. and Bousquet, Romain and Oberh{\"a}nsli, Roland and Michard, Andre},
  title     = {Detachments in high-pressure mountain belts, Tethyan examples},
  year      = {1998},
  language  = {en}
}
@article{WolffBoenischTrackSchenketal.1997,
  author    = {Wolff-Boenisch, D. and Track, T. and Schenk, D. and Oberh{\"a}nsli, Roland},
  title     = {Sorptionsverhalten von 2,4,6-Trinitrotoluol und 1,3-Dinitrobenzol an unterschidlichen Bodenmodellsubstanzen},
  year      = {1997},
  language  = {de}
}
@article{CandanDoraOberhaenslietal.1997,
  author    = {Candan, O. and Dora, O. and Oberh{\"a}nsli, Roland and {\"O}lsner, F. and D{\"u}rr, S.},
  title     = {Blueschist relics in the Mesozoic cover series of the Menderes Massif and correlations with Samos Island, Cyclades},
  year      = {1997},
  language  = {en}
}
@article{BousquetOberhaensli1997,
  author    = {Bousquet, Romain and Oberh{\"a}nsli, Roland},
  title     = {Distribution of HP-LT metamorphism and extensional deformation in the "B{\"u}ndnerschiefer" of the Engadine window (eastern Central Alps) : Implication of regional evolution},
  year      = {1997},
  language  = {en}
}
@article{OberhaensliNegendank1997,
  author    = {Oberh{\"a}nsli, Roland and Negendank, J{\"o}rg F. W.},
  title     = {Natural and anthropogenic influences on the geochemistry of Quaternary lake sediments from Holzmaar, Germany},
  year      = {1997},
  language  = {en}
}
@article{OberhaensliCandanDoraetal.1997,
  author    = {Oberh{\"a}nsli, Roland and Candan, O. and Dora, O. and D{\"u}rr, S.},
  title     = {Eclogites within the Menderes Massif / western Turkey},
  year      = {1997},
  language  = {en}
}
@article{WenzelMertzOberhaenslietal.1997,
  author    = {Wenzel, T. and Mertz, D. and Oberh{\"a}nsli, Roland and Becker, Thomas and Penne, P.},
  title     = {Age, geodynamic setting, and mantle enrichment processes of a K-rich intrusion from the Meissen massif (northern Bohemian massif) and implications for related occurrences from the mid-European Hecynian},
  year      = {1997},
  language  = {en}
}
@article{SaddiqiPoupeauMichardetal.1995,
  author    = {Saddiqi, O. and Poupeau, G. and Michard, Andre and Groffe, B. and Oberh{\"a}nsli, Roland},
  title     = {Exhumation des roches metamorphiques HP-BT d'Oman : datation par traces de fission sur zircons},
  year      = {1995},
  language  = {fr}
}
@article{OberhaensliGoffeBousquet1995,
  author    = {Oberh{\"a}nsli, Roland and Goffe, B. and Bousquet, Romain},
  title     = {Record of a HP-LT metamorphic evolution in the Valais zone : Geodynamics implications},
  issn      = {0392 - 758X},
  year      = {1995},
  language  = {en}
}
@article{KoziolOberhaensli1995,
  author    = {Koziol, M. and Oberh{\"a}nsli, Roland},
  title     = {Die s{\"u}dliche Eklogitzone im {\"O}tztal},
  year      = {1995},
  language  = {de}
}
@article{ZobirOberhaensli2013,
  author    = {Zobir, Soraya Hadj and Oberh{\"a}nsli, Roland},
  title     = {The sidi Mohamed peridotites (Edough Massif, NE Algeria) - evidence for an upper mantle origin},
  series = {Journal of earth system science},
  volume    = {122},
  journal   = {Journal of earth system science},
  number    = {6},
  publisher = {Indian Academy of Science},
  address   = {Bangalore},
  issn      = {0253-4126},
  doi       = {10.1007/s12040-013-0358-z},
  pages     = {1455 -- 1465},
  year      = {2013},
  abstract  = {The Hercynian Edough massif is the easternmost crystalline massif of the Algerian coast. It consists of two tectonically superposed units composed of micaschists, gneisses, and peridotite. This study concentrates on the small and isolated Sidi Mohamed peridotite outcrop area (0.03 km(2)). The Sidi Mohamed peridotite is composed mainly of harzburgites (Mg-rich olivine and orthopyroxene as major minerals). The Ni (2051-2920 ppm), Cr (2368-5514 ppm) and MgO (similar to 28-35 wt.\%) whole-rock composition and the relative depletion in Nb make these harzburgites comparable to depleted peridotites related to a subduction zone. We suggest that the Sidi Mohamed ultramafic body was derived directly from the upper mantle and tectonically incorporated into the gneiss units of the Edough metamorphic core complex in a subduction environment.},
  language  = {en}
}
@article{Oberhaensli1998,
  author    = {Oberh{\"a}nsli, Roland},
  title     = {The age of blueschist metamorphiosm ion the Mesozoic cover series of the Menderes massif},
  year      = {1998},
  language  = {en}
}
@article{BousquetOberhaensli1998,
  author    = {Bousquet, Romain and Oberh{\"a}nsli, Roland},
  title     = {High-pressure-low-temperature metamorphism and deformation in the "B{\"u}ndnerschiefer" of the Engadine window : implications for the regional evolution of the eastern Central Alps},
  year      = {1998},
  language  = {en}
}
@article{Oberhaensli1998,
  author    = {Oberh{\"a}nsli, Roland},
  title     = {The tectono-metamorphic signature of detachments in high-pressure mountain belts, Tethyan examples},
  year      = {1998},
  language  = {en}
}
@article{BianchiMartinottiOberhaensli1998,
  author    = {Bianchi, Gianphino Walter and Martinotti, G. and Oberh{\"a}nsli, Roland},
  title     = {Metasedimentary cover sequences and associated metabasites in the Sabbione Lake zone, Formazza Valley, Italy},
  year      = {1998},
  language  = {en}
}
@article{ArmbrusterBermanceZebecetal.1998,
  author    = {Armbruster, Thomas and Bermance, V. and Zebec, M. and Oberh{\"a}nsli, Roland},
  title     = {Titanium and iron poor zincoh{\"o}gbomite-16H, Zn14(al,Fe3+,Ti,Mg)8Al24O62(OH)2, from Nezilovo, Macedonia: occurrence and crystal structure of a new polysome},
  year      = {1998},
  language  = {en}
}
@article{SchmidAltenbergerOberhaensli1998,
  author    = {Schmid, Robert and Altenberger, Uwe and Oberh{\"a}nsli, Roland},
  title     = {Polyphase tectono-metamorphic evolution of the northwestern Lindas Nappe on Holsnoy, Bergen Arcs, Caledonides, SW-Norway},
  year      = {1998},
  language  = {en}
}
@article{PoupeauSaddiqiMichardetal.1998,
  author    = {Poupeau, G. and Saddiqi, O. and Michard, Andre and Goffe, B. and Oberh{\"a}nsli, Roland},
  title     = {Late thermal evolution of the oman mountains subophiolitic windows : apatite fission-track thermochronology},
  issn      = {0091-7613},
  year      = {1998},
  language  = {en}
}
@article{KoralayCandanChenetal.2012,
  author    = {Koralay, O. E. and Candan, Osman and Chen, F. and Akal, Cemal B. and Oberh{\"a}nsli, Roland and Satir, M. and Dora, O. O.},
  title     = {Pan-African magmatism in the Menderes Massif - geochronological data from leucocratic tourmaline orthogneisses in western Turkey},
  series = {International journal of earth sciences},
  volume    = {101},
  journal   = {International journal of earth sciences},
  number    = {8},
  publisher = {Springer},
  address   = {New York},
  issn      = {1437-3254},
  doi       = {10.1007/s00531-012-0775-2},
  pages     = {2055 -- 2081},
  year      = {2012},
  abstract  = {The Menderes Massif, exposed in western Anatolia, is a metamorphic complex cropping out in the Alpine orogenic belt. The metamorphic rock succession of the Massif is made up of a Precambrian basement and overlying Paleozoic-early Tertiary cover series. The Pan-African basement is composed of late Proterozoic metasedimentary rocks consisting of partially migmatized paragneisses and conformably overlying medium- to high-grade mica schists, intruded by orthogneisses and metagabbros. Along the southern flank of the southern submassif, we recognized well-preserved primary contact relationship between biotite and leucocratic tourmaline orthogneisses and country rocks as the orthogneisses represent numerous large plutons, stocks and vein rocks intruded into a basement of garnet mica schists. Based on the radiometric data, the primary deposition age of the precursors of the country rocks, garnet mica schist, can be constrained between 600 and 550 Ma (latest Neoproterozoic). The North Africa-Arabian-Nubian Shield in the Mozambique Belt can be suggested as the possible provenance of these metaclastics. The intrusion ages of the leucocratic tourmaline orthogneisses and biotite orthogneisses were dated at 550-540 Ma (latest Neoproterozoic-earliest Cambrian) by zircon U/Pb and Pb/Pb geochronology. These granitoids represent the products of the widespread Pan-African acidic magmatic activity, which can be attributed to the closure of the Mozambique Ocean during the final collision of East and West Gondwana. Detrital zircon ages at about 550 Ma in the Paleozoic muscovite-quartz schists show that these Pan-African granitoids in the basement form the source rocks of the cover series of the Menderes Massif.},
  language  = {en}
}