TY  - JOUR
A1  - Candan, Osman
A1  - Koralay, O. E.
A1  - Akal, Cemal B.
A1  - Kaya, O.
A1  - Oberhänsli, Roland
A1  - Dora, O. O.
A1  - Konak, N.
A1  - Chen, F.
T1  - Supra-Pan-African unconformity between core and cover series of the Menderes Massif/Turkey and its geological implications
JF  - Precambrian research
N2  - Well-preserved primary contact relationships between a Late Proterozoic metasedimentary and the metagranitic core and Palaeozoic cover series of the Menderes Massif have been recognized in the eastern part of the Cine submassif on a regional-scale. Metaconglomerates occur as laterally discontinuous channel-fill bodies close the base of the metaquartzarenite directly above the basement. The pebbles in the metaconglomerates consist mainly of different types of tourmaline-rich leucocratic granitoids, tourmalinite and schist in a sandy matrix. Petrographic features, geochemical compositions and zircon radiometric ages (549.6 +/- 3.7-552.3 +/- 3.1 Ma) of the diagnostic clasts of the metaconglomerates (e.g. leucocratic granitoids and tourmalinites) show excellent agreement with their in situ equivalents (549.0 +/- 5.4 Ma) occurring in the Pan-African basement as stocks and veins.
 The correlation between clasts in the metaconglomerates and granitoids of the basement suggests that the primary contact between the basement and cover series is a regional unconformity (supra-Pan-African Unconformity) representing deep erosion of the Pan-African basement followed by the deposition of the cover series. Hence the usage of 'core-cover' terminology in the Menderes Massif is valid. Consequently, these new data preclude the views that the granitic precursors of the leucocratic orthogneisses are Tertiary intrusions.
KW  - Menderes Massif
KW  - Pan-African
KW  - Zircon age
KW  - Core complex
KW  - Turkey
Y1  - 2011
U6  - https://doi.org/10.1016/j.precamres.2010.09.010
SN  - 0301-9268
VL  - 184
IS  - 1-4
SP  - 1
EP  - 23
PB  - Elsevier
CY  - Amsterdam
ER  - 
TY  - JOUR
A1  - Candan, O.
A1  - Koralay, O. E.
A1  - Topuz, G.
A1  - Oberhänsli, Roland
A1  - Fritz, H.
A1  - Collins, A. S.
A1  - Chen, F.
T1  - Late Neoproterozoic gabbro emplacement followed by early Cambrian eclogite-facies metamorphism in the Menderes Massif (W. Turkey): Implications on the final assembly of Gondwana
JF  - Gondwana research : international geoscience journal ; official journal of the International Association for Gondwana Research
N2  - Numerous (meta-)gabbroic dikes or stocks occur within the latest Neoproterozoic-early Cambrian series of the Menderes Massif (Anatolide-Tauride Block, western Turkey). These well-preserved rocks were locally converted into eclogitic metagabbros and garnet amphibolites along the contacts or shear zones. Both bulk-rock composition and compositions of igneous clinopyroxenes suggest continental tholeiitic affinity. U-Pb dating of igneous zircons from gabbroic rocks yielded a mean age of 563 +/- 1 Ma (2 sigma), indicating emplacement during the latest Neoproterozoic (Ediacaran). On the other hand, rims of zircons from eclogitic metagabbro gave 535 +/- 3 Ma (2 sigma) (early Cambrian), in addition to 558 +/- 3 Ma (2 sigma) obtained from the igneous core of zircons. These ages are interpreted as the time of high-P metamorphism and crystallization age of gabbroic protolith, respectively. Given the estimated paleogeographic position of the Anatolide-Tauride Block during the late Neoproterozoic and early Cambrian, this orogenic event can be spatially and temporally related to the northward continuity of 600-500 Ma orogenic event (Malagasy/Kuunga orogeny) extending from western margin of India, Madagascar, via Arabia up to northern margin of Gondwana beneath thick Phanerozoic cover series in Arabian Peninsula. Therefore, the high-P evolution of the basement of the Menderes Massif and associated basic intrusions can be interpreted to mark the latest stages of consumption of the basin/oceanic branches and final amalgamation of the Gondwana during the late Neoproterozoic-early Cambrian around the Arabian region. (C) 2015 International Association for Gondwana Research. Published by Elsevier B.V. All rights reserved.
KW  - Gabbro
KW  - Eclogite
KW  - Malagasy/Kuunga orogeny
KW  - Menderes Massif
KW  - Turkey
Y1  - 2016
U6  - https://doi.org/10.1016/j.gr.2015.02.015
SN  - 1342-937X
SN  - 1878-0571
VL  - 34
SP  - 158
EP  - 173
PB  - Elsevier
CY  - Amsterdam
ER  -