GEOCHEMISTRY OF SHANDERMAN ECLOGITE, CONSTRAINS ON PROTOLITH NATURE

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OMRANI H.; MOUAYED MOHSEN; OBERSANSLI R.; BOUSQUET R.; TSUJIMORI T.

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Journal Paper

Paper Information

Journal: Iranian Journal of Crystallography and Mineralogy Year:2010 | Volume:18 | Issue:3 Page(s): 0-0

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Title

GEOCHEMISTRY OF SHANDERMAN ECLOGITE, CONSTRAINS ON PROTOLITH NATURE

Author(s)

Keywords

ALBORZ

SHANDERMAN

ECLOGITE

GEOCHEMISTRY

PALEOTETHYS

Abstract

Shanderman ECLOGITEs are exposed at the west of SHANDERMAN town, Talesh Mountains in the north of Iran. Protoliths of these rocks had basaltic composition. Geochemical studies indicate that most of the samples have tholeiitic feature. Mg# versus Cr and Ni show that they experienced olivine and clinopyroxene fractionation. Spider diagram shows more fractionation of olivine compared to clinopyroxene. The trace element versus major oxides diagrams show that major oxides had no significant (except Na and to some extent Fe) variation during alteration and subsequent metamorphism. Based on ∑REE, ECLOGITE of the SHANDERMAN can be divided into two groups. First group shows ∑REE= 31.1 ppm and (La/Lu)N=0.6. Second group have ∑REE= 139.2 ppm and (La/Lu)N=2.3. Chondrite REE normalized patterns show that they are comparable with N-MORB and E-MORB. These patterns (N-E MORB) indicate that either SHANDERMAN ECLOGITE protolith magma source was not homogenous or it experienced different melting degrees, changing from LSS (Slow spreading ridge) to FSS (fast spreading ridge).

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APA: Copy

OMRANI, H., MOUAYED, MOHSEN, OBERSANSLI, R., BOUSQUET, R., & TSUJIMORI, T.. (2010). GEOCHEMISTRY OF SHANDERMAN ECLOGITE, CONSTRAINS ON PROTOLITH NATURE. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 18(3), 0-0. SID. https://sid.ir/paper/556832/en

Vancouver: Copy

OMRANI H., MOUAYED MOHSEN, OBERSANSLI R., BOUSQUET R., TSUJIMORI T.. GEOCHEMISTRY OF SHANDERMAN ECLOGITE, CONSTRAINS ON PROTOLITH NATURE. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2010;18(3):0-0. Available from: https://sid.ir/paper/556832/en

IEEE: Copy

H. OMRANI, MOHSEN MOUAYED, R. OBERSANSLI, R. BOUSQUET, and T. TSUJIMORI, “GEOCHEMISTRY OF SHANDERMAN ECLOGITE, CONSTRAINS ON PROTOLITH NATURE,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 18, no. 3, pp. 0–0, 2010, [Online]. Available: https://sid.ir/paper/556832/en

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