Geochemistry and origin of the ortho-amphibolites inTakhte-Soleyman (NE Takab)

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Khodaean Chegeni Ziba; RASHIDNEJAD OMRAN NEMATOLLAH; BAHARIFAR ALI AKBAR; NOZAEM REZA; Vaccaro Carmela; SANTOS JOSE FRANCISCO

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Journal: GEOSCIENCES Year:2022 | Volume:32 | Issue:124 Page(s): 133-148

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Title

Geochemistry and origin of the ortho-amphibolites inTakhte-Soleyman (NE Takab)

Author(s)

Keywords

Ortho-amphibolite

Geochemistry

Volcanic arc

Back arc

Takhte-Soleyman

Takab

Abstract

Takhte-Soleyman Ortho-amphibolites as a part of Takab metamorphic complex are located in Northeast Takab. These rocks consist of amphibolite, Garnet-amphibolite, Kyanite-Garnet-amphibolite, Hornblend-Schist and Epidote-amphibolite. Petrography and whole-rock Geochemistry show that basalt, andesite and/or their intrusive equivalents with calc-alkaline to tholeiitic affinity and even a peridotite could be their protoliths. Trace element and Sr-Nd ratios imply that these rocks were from mantle melt sources. In chondrite normalized plots, these amphibolites can be classified into at least two groups. The first group is characterized by LREE depletion relative to HREEs and some with flat patterns. The second has an enrichment of LREEs relative to HREEs. These two different patterns and some other geochemical characters suggest MORB or MORB-like and arc affinities of the parental magmas. This can be related to the time progressive evolution of magmatism either from MORB or Back-arc to Arc or from Arc to Back-arc setting.

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APA: Copy

Khodaean Chegeni, Ziba, RASHIDNEJAD OMRAN, NEMATOLLAH, BAHARIFAR, ALI AKBAR, NOZAEM, REZA, Vaccaro, Carmela, & SANTOS, JOSE FRANCISCO. (2022). Geochemistry and origin of the ortho-amphibolites inTakhte-Soleyman (NE Takab). GEOSCIENCES, 32(124 ), 133-148. SID. https://sid.ir/paper/965059/en

Vancouver: Copy

Khodaean Chegeni Ziba, RASHIDNEJAD OMRAN NEMATOLLAH, BAHARIFAR ALI AKBAR, NOZAEM REZA, Vaccaro Carmela, SANTOS JOSE FRANCISCO. Geochemistry and origin of the ortho-amphibolites inTakhte-Soleyman (NE Takab). GEOSCIENCES[Internet]. 2022;32(124 ):133-148. Available from: https://sid.ir/paper/965059/en

IEEE: Copy

Ziba Khodaean Chegeni, NEMATOLLAH RASHIDNEJAD OMRAN, ALI AKBAR BAHARIFAR, REZA NOZAEM, Carmela Vaccaro, and JOSE FRANCISCO SANTOS, “Geochemistry and origin of the ortho-amphibolites inTakhte-Soleyman (NE Takab),” GEOSCIENCES, vol. 32, no. 124 , pp. 133–148, 2022, [Online]. Available: https://sid.ir/paper/965059/en

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