PETROGENESIS OF SHIR-KUH PERALUMIN-OUS GRANITOIDS (SOUTH WEST OF YAZD)

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SHEIBI M.; ESMAEILY D.

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Paper Information

Journal: JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT) Year:2009 | Volume:35 | Issue:3 (SECTION: GEOLOGY) Page(s): 71-83

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Information Journal Paper

Title

PETROGENESIS OF SHIR-KUH PERALUMIN-OUS GRANITOIDS (SOUTH WEST OF YAZD)

Author(s)

SHEIBI M. | ESMAEILY D. | Issue Writer Certificate

Keywords

S-TYPE GRANITOIDSQ3

PERALUMINOUS MELTQ3

YAZDQ3

SHIR-KUHQ3

Abstract

The middle Jurassic SHIR-KUH granitic batholith in Central Iran intruded to the sandstones and shales of Nayband-Shemshak Formation. The batholith consists of three main granodioritic, monzogranitic and leucogranitic units. The granodiorites composed of plagioclase, quartz and biotite and is limited to the northern margin of the batholith. The monzogranites which made the dominant unit range from relatively mafic (cordierite-bearing) to felsic (muscovite-rich) rocks. The leucogranites character- ized by white color and absence of opaque minerals consist mainly of quartz, K-feldspar, and sodic plagioclase and located along the northwestern margin. Separation of restite from initial melt composition appears to have been an effective differentiation process in the formation of more mafic rocks of the batholith. The relatively felsic was formed due to fractional crystallization. The boundary between the two types is at about 70% Sio2. Relatively mafic granites are rich in normative corundum and the more felsic one is close to the minimum melt. The SHIR-KUH granitic rocks are enriched in large ion lithophile elements LILEs (K, Rb, Th and U) and depletion in high field strength elements HFSEs (Nb and Ti) which are indicative of subduction-related magma. The batholith is peraluminous, calc-alkaline, and S-type granite. The widespread dykes which are exist in the batholith and country rocks support the settlement of mafic magma below the lower continental crust.

Cites

GEOCHEMISTRY AND GENESIS OF INDUSTRIAL SOILS OF BID-AKHAVID FELDSPAR DEPOSIT (DEHSHIR FAULT ZONE), USING RARE EARTH ELEMENTS AND STABLE ISOTOPIC DATA

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APA: Copy

SHEIBI, M., & ESMAEILY, D.. (2009). PETROGENESIS OF SHIR-KUH PERALUMIN-OUS GRANITOIDS (SOUTH WEST OF YAZD). JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), 35(3 (SECTION: GEOLOGY)), 71-83. SID. https://sid.ir/paper/2256/en

Vancouver: Copy

SHEIBI M., ESMAEILY D.. PETROGENESIS OF SHIR-KUH PERALUMIN-OUS GRANITOIDS (SOUTH WEST OF YAZD). JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT)[Internet]. 2009;35(3 (SECTION: GEOLOGY)):71-83. Available from: https://sid.ir/paper/2256/en

IEEE: Copy

M. SHEIBI, and D. ESMAEILY, “PETROGENESIS OF SHIR-KUH PERALUMIN-OUS GRANITOIDS (SOUTH WEST OF YAZD),” JOURNAL OF SCIENCE (UNIVERSITY OF TEHRAN) (JSUT), vol. 35, no. 3 (SECTION: GEOLOGY), pp. 71–83, 2009, [Online]. Available: https://sid.ir/paper/2256/en

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