@article{HarlovTropperSeifertetal.2006,
  author    = {Harlov, Daniel E. and Tropper, Peter and Seifert, Wolfgang and Nijland, Timo and F{\"o}rster, Hans-J{\"u}rgen},
  title     = {Formation of Al-rich titanite (CaTiSiO4O-CaAlSiO4OH) reaction rims on ilmenite in metamorphic rocks as a function of fH(2)O and fO(2)},
  issn      = {0024-4937},
  doi       = {10.1016/j.lithos.2005.08.005},
  year      = {2006},
  abstract  = {Reaction rims of titanite on ilmenite are described in samples from four terranes of amphibolite-facies metapelites and amphibolites namely the Tamil Nadu area, southern India; the Val Strona, area of the Ivrea-Verbano Zone, northern Italy, the Bamble Sector, southern Norway, and the northwestern Austroalpine Otztal Complex. The titanite rims, and hence the stability of titanite (CaTiSiO4O) and Al-OH titanite, i.e. vuaganatite (hypothetical end-member CaAlSiO4OH), are discussed in the light of fH(2)O- and fO(2)-buffered equilibria involving clinopyroxene, amphibole, biotite, ilmenite, magnetite, and quartz in the systems CaO-FeO/Fe2O3-TiO2-SiO2-H2O-O-2 (CFTSH) and CaO-FeO/Fe2O3-Al2O3- SiO2-H2O-O-2 (CFASH) present in each of the examples. Textural evidence suggests that titanite reaction rims on ilmenite in rocks from Tamil Nadu, Val Strona, and the Bamble Sector originated most likely due to hydration reactions such as clinopyroxene + ilmenite +quartz+ H2O = amphibole +titanite and oxidation reactions such as amphibole + ilmenite + O-2 = titanite + magnetite + quartz + H2O during amphibolite-facies metamorphism, or, as in the case of the Otztal Complex, during a subsequent greenschist-facies overprint. Overstepping of these reactions requires fH(2)O and fO(2) to be high for titanite formation, which is also in accordance with equilibria involving Al-OH titanite. This study shows that, in addition to P, T, bulk-rock composition and composition of the coexisting fluid, fO(2) and fH(2)O also play an important role in the formation of Al-bearing titanite during amphibolite- and greenschist-facies metamorphism.},
  language  = {en}
}
@article{SeifertRhedeFoersteretal.2009,
  author    = {Seifert, Wolfgang and Rhede, Dieter and F{\"o}rster, Hans-J{\"u}rgen and Thomas, Rainer},
  title     = {Accessory minerals as fingerprints for the thermal history and geochronology of the Caledonian Rumburk granite},
  issn      = {0077-7757},
  doi       = {10.1127/0077-7757/2009/0147},
  year      = {2009},
  abstract  = {Accessory minerals of the Caledonian Rumburk granite are investigated to gain insight into its magmatic and post-magmatic evolution history. Recent geothermometers calibrated for trace elements in rutile (Zr), zircon (Ti), and quartz (Ti) were used to determine mineral-formation temperatures, which are compared with T data obtained from melt and fluid-inclusion Studies on quartz. Improved electron-microprobe analytical conditions allowed distinguishing several generations of rutile. Submicron-sized rutile needles included in quartz crystallized at around 739 +/- 13 degrees C and, thus, are evidently magmatic. Simultaneous crystallization of the high-T rutile and quartz is the favoured concept compared with an exsolution model for the needles. Th-U-total Pb dating of xenotime-(Y) by electron microprobe yielded a bimodal age distribution of 494 +/- 8 Ma (2 sigma; n = 44) and 311 +/- 8 Ma (2 sigma; n = 48), which is missing in monazite-(Ce). The older age correlates with the early Ordovician granite emplacement age Suggested by earlier isotopic Studies. The younger Carboniferous age also may be geologically reasonable, because the granite experienced a minor tectonothermal overprint during the Variscan orogenesis. However, whether this event has caused the resetting of the isotopic system in the xenotime is uncertain. This also holds for the age of the partial breakdown of monazite and xenotime into reaction coronas composed of fluorapatite, allanite-(Ce), epidote +/- clinozoisite. This alteration assemblage was likely produced already during autometasomatic reworking of the solidifying magma in Ordovician time, but it cannot be excluded that it relates to a Carboniferous fluid imprint connected with late-Variscan processes.},
  language  = {en}
}
@book{AmendTrautBayerleDunckeretal.2018,
  author    = {Amend-Traut, Anja and Bayerle, Katrin and Duncker, Arne Dirk and Dusil, Stephan and Forster, Wolfgang and Frassek, Ralf and Hermann, Hans-Georg and Koch, Elisabeth and Lettmaier, Saskia and L{\"o}hning, Martin and Ludyga, Hannes and Maetschke, Matthias and Mayenburg, David von and Meder, Stephan and Repgen, Tilman and Roth, Andreas and Saar, Stefan Christoph and Schlinker, Steffen and Schmoeckel, Matthias and Schumann, Eva and Thier, Andreas},
  title     = {Familienrecht \S\S 1297-1921},
  series = {Historisch-kritischer Kommentar zum BGB ; 4},
  journal   = {Historisch-kritischer Kommentar zum BGB ; 4},
  publisher = {Mohr Siebeck},
  address   = {T{\"u}bingen},
  isbn      = {978-3-16-156399-7},
  pages     = {XXXVIII,1622},
  year      = {2018},
  language  = {de}
}