PETROLOGY OF DEVONIAN BASALTS FROM POL-E-KHAVAND AREA (SE OF ANARAK, NE OF ISFAHAN)

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TORABI GHODRAT; HASHEMI FATEMEH

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Journal Paper

Paper Information

Journal: PETROLOGY Year:2010 | Volume:1 | Issue:3 Page(s): 29-46

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Information Journal Paper

Title

PETROLOGY OF DEVONIAN BASALTS FROM POL-E-KHAVAND AREA (SE OF ANARAK, NE OF ISFAHAN)

Author(s)

TORABI GHODRAT | HASHEMI FATEMEH | Issue Writer Certificate

Keywords

ANARAKQ2

BASALTQ2

PADEHAQ2

PALEOZOICQ2

POL-E-KHAVANDQ3

DEVONIANQ2

Abstract

Volcanic rocks with composition of BASALT and possibly Lower PALEOZOIC (Devonian) age are present in the Kuh-e-Abdulhosein (Pol-e-Khavand, ANARAK area). These rocks with 120 m thickness consist of clinopyroxene (augite), plagioclase (albite), alkalifeldspar (sanidine, anorthoclase), chlorite (corundophilite by alteration of olivine, and clinochlore scattered in the groundmass), amphibole (schermakite hornblende), garnet (spessartine), calcite, sericite and opaque minerals (magnetite and ilmenite). As the most of PALEOZOIC BASALTs of Iran, these rocks are not different in texture and mineralogy that are evidences of limited differentiation of their parental magma. On the basis of the geochemical studies and tectonic setting patterns, these rocks resemble as WPTB (within plate tholeiitic BASALTs) and transitional BASALTs. In chondrite-normalized spidergrams, they are more enriched in LREE than the HREE.

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