PETROGRAPHY AND PETROGENESIS OF QHALAYLAN INTRUSIVE BODY (SOUTHWEST OF GHORVEH-KORDESTAN)

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NOORIHENDI L.; TORKIAN A.; SEPAHI A.A.

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Journal: JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY) Year:2012 | Volume:8 | Issue:2 Page(s): 173-184

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Title

PETROGRAPHY AND PETROGENESIS OF QHALAYLAN INTRUSIVE BODY (SOUTHWEST OF GHORVEH-KORDESTAN)

Author(s)

NOORIHENDI L. | TORKIAN A. | SEPAHI A.A. | Issue Writer Certificate

Keywords

LOWER CRUSTQ1

DIORITEQ2

GRANITEQ2

METAGREYWACKEQ2

Abstract

Qhalaylan intrusive body in southwest of Ghorveh with east-west trend is a small part of intrusive bodies of Sanandaj-Sirjan zone. Based on field observation as well as mineralogical characteristics, this suite consists of main unit's DIORITEs, GRANITEs and porphyritic GRANITE. Mineralogical and geochemical studies show that the rocks of this suite are I-type, sub-alkaline and from the point of view of saturation degree of aluminum (ASI) are metaluminous. The low amount of elements ratio (Al2O3/FeO+MgO+TiO2) and (Na2O+K2O/(FeO+MgO+TiO2) and concentration of low Rb/Sr (less than 0.6) in the dioritic rocks suggest DIORITEs origin from the partial melting of LOWER CRUST sources without water due to melting of amphibolite. High volume of felsic rocks (granites and porphyritic GRANITE) is inconsistent with this subject that unites an origin via differentiation of mantle-derived basaltic parent magma and assimilation. The low amount of transition elements (Ni, Cr, Co and V), and the low amount of elements ratio Nb/La and Ti/Zr show that the source of felsic magma, is presumably due to partial melting of crust protholites (metagrywakes). Discrimination diagrams for tectonic setting, the low Nb/U and Nb/Y and the high Ba/Nb show the intrusion of Qelaylan into the volcanic arc setting related to an active continental margin.

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APA: Copy

NOORIHENDI, L., TORKIAN, A., & SEPAHI, A.A.. (2012). PETROGRAPHY AND PETROGENESIS OF QHALAYLAN INTRUSIVE BODY (SOUTHWEST OF GHORVEH-KORDESTAN). JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY), 8(2), 173-184. SID. https://sid.ir/paper/127121/en

Vancouver: Copy

NOORIHENDI L., TORKIAN A., SEPAHI A.A.. PETROGRAPHY AND PETROGENESIS OF QHALAYLAN INTRUSIVE BODY (SOUTHWEST OF GHORVEH-KORDESTAN). JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY)[Internet]. 2012;8(2):173-184. Available from: https://sid.ir/paper/127121/en

IEEE: Copy

L. NOORIHENDI, A. TORKIAN, and A.A. SEPAHI, “PETROGRAPHY AND PETROGENESIS OF QHALAYLAN INTRUSIVE BODY (SOUTHWEST OF GHORVEH-KORDESTAN),” JOURNAL OF GEOTECHNICAL GEOLOGY (APPLIED GEOLOGY), vol. 8, no. 2, pp. 173–184, 2012, [Online]. Available: https://sid.ir/paper/127121/en

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