Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications

Öz Metamorphic evolution of an epidote-lawsonite blueschist sample characterized by the coexistence of lawsonite and epidote from Sivrihisar area (Taysanli Zone) was studied herein in terms of petrology and mineral equilibria. Based on the textural evidence and phase composition, 2 prograde stages, defined by assemblage-I and -II and 1 retrograde stage were recognized. Assemblage-I indicates epidote-blueschist facies conditions (12 +/- 1 kbar / 485 +/- 10 degrees C). Assemblage-II is characterized by the coexistence of epidote and lawsonite (17 +/- 1 kbar / 515 +/- 10 degrees C) corresponding to the interface of lawsonite blueschist and epidote blueschist facies. Phase diagram calculations and mineral compositions revealed that along this interface, an equilibrium field with lawsonite and epidote is stable. This closed-equilibrium field is controlled by high aH(2)O and an elevated Fe3+/Al ratio of minerals. Pressure-temperature (P-T) estimates and textural observations indicated a counter-clockwise path during the subduction and exhumation history. The preservation of lawsonite and epidote during the retrograde stage pointed to the fact that the path followed the stability field of lawsonite and epidote during exhumation.

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Kaynak Göster

Bibtex @araştırma makalesi { tbtkearth942319, journal = {Turkish Journal of Earth Sciences}, issn = {1300-0985}, eissn = {1303-619X}, address = {}, publisher = {TÜBİTAK}, year = {2020}, volume = {29}, pages = {1073 - 1099}, doi = {}, title = {Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications}, key = {cite}, author = {Cetinkaplan, Mete} }
APA Cetinkaplan, M . (2020). Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications . Turkish Journal of Earth Sciences , 29 (7) , 1073-1099 .
MLA Cetinkaplan, M . "Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications" . Turkish Journal of Earth Sciences 29 (2020 ): 1073-1099 <
Chicago Cetinkaplan, M . "Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications". Turkish Journal of Earth Sciences 29 (2020 ): 1073-1099
RIS TY - JOUR T1 - Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications AU - Mete Cetinkaplan Y1 - 2020 PY - 2020 N1 - DO - T2 - Turkish Journal of Earth Sciences JF - Journal JO - JOR SP - 1073 EP - 1099 VL - 29 IS - 7 SN - 1300-0985-1303-619X M3 - UR - Y2 - 2020 ER -
EndNote %0 Turkish Journal of Earth Sciences Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications %A Mete Cetinkaplan %T Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications %D 2020 %J Turkish Journal of Earth Sciences %P 1300-0985-1303-619X %V 29 %N 7 %R %U
ISNAD Cetinkaplan, Mete . "Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications". Turkish Journal of Earth Sciences 29 / 7 (Kasım 2020): 1073-1099 .
AMA Cetinkaplan M . Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications. Turkish Journal of Earth Sciences. 2020; 29(7): 1073-1099.
Vancouver Cetinkaplan M . Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications. Turkish Journal of Earth Sciences. 2020; 29(7): 1073-1099.
IEEE M. Cetinkaplan , "Epidote - lawsonite coexistence in blueschist-facies block from the Tavsanli Zone - Turkey: petrological implications", Turkish Journal of Earth Sciences, c. 29, sayı. 7, ss. 1073-1099, Kas. 2020