DATING OF AGE, GENESIS AND TECTONIC SETTING OF INTRUSIVE BODIES IN SOUTH OF SABZEVAR

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GHOORCHI ROOKI MALIHEH; KARIMPOUR MOHAMMAD HASSAN; EBRAHIMI NASRABADI KHOSROW

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Journal: PETROLOGY Year:2014 | Volume:4 | Issue:16 Page(s): 1-20

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Information Journal Paper

Title

DATING OF AGE, GENESIS AND TECTONIC SETTING OF INTRUSIVE BODIES IN SOUTH OF SABZEVAR

Author(s)

GHOORCHI ROOKI MALIHEH | KARIMPOUR MOHAMMAD HASSAN | EBRAHIMI NASRABADI KHOSROW | Issue Writer Certificate

Keywords

CRETACEOUSQ2

GRANITOID MASSQ2

MAGMATIC ARCQ2

SABZEVARQ2

CENTRAL ITANQ2

Abstract

In this study, we investigate the geochemical evolution and the age of intrusive rocks from central part of the MAGMATIC ARC of the northeastern Iran in the south of SABZEVAR (Khorasan Razavi province). The geochemical evidences point to magmatism related to volcanic arc and subduction zone. The intrusive rocks vary in composition from granite to diorite and gabbro. Based on mineralogy and the high values of magnetic susceptibility [(>400) × 10-5 SI], the intrusive rocks are classified as magnetite-series of oxidized I-type granitoid. Chemically, they are meta to per-aluminous, enriched in LILE (K, Th and Rb) and depleted in HFSE (Nb, P and Ti) and belong to tholeiitic series. Low (La/Yb) N, low Sr/Y ratios and the negative anomaly of Eu indicate a classic island arc type magmatism. Trace elements behavior in acidic and intermediate intrusive rocks show nearly flat pattern (La/SmPm =0.97-2.57) and lie outside the garnet stability field. Thus, the source rocks should not be eclogite or garnet amphibolite. The geochemical signature of rare and trace elements suggests derivation from melting under relatively low pressure condition (shallow depth). The results of U-Pb zircon dating of the studied are 97-100 Ma (mid-CRETACEOUS time). The initial 87Sr/86Sr ratios and the initial eNd are 0.7049 and +4.54, respectively.

Cites

ASSESSMENT OF POTENTIAL HEALTH RISKS OF HEAVY METALS DUE TO SEWAGE IRRIGATION OF AGRICULTURAL SOILS IN THE SOUTH OF SABZEVAR

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APA: Copy

GHOORCHI ROOKI, MALIHEH, KARIMPOUR, MOHAMMAD HASSAN, & EBRAHIMI NASRABADI, KHOSROW. (2014). DATING OF AGE, GENESIS AND TECTONIC SETTING OF INTRUSIVE BODIES IN SOUTH OF SABZEVAR. PETROLOGY, 4(16), 1-20. SID. https://sid.ir/paper/196930/en

Vancouver: Copy

GHOORCHI ROOKI MALIHEH, KARIMPOUR MOHAMMAD HASSAN, EBRAHIMI NASRABADI KHOSROW. DATING OF AGE, GENESIS AND TECTONIC SETTING OF INTRUSIVE BODIES IN SOUTH OF SABZEVAR. PETROLOGY[Internet]. 2014;4(16):1-20. Available from: https://sid.ir/paper/196930/en

IEEE: Copy

MALIHEH GHOORCHI ROOKI, MOHAMMAD HASSAN KARIMPOUR, and KHOSROW EBRAHIMI NASRABADI, “DATING OF AGE, GENESIS AND TECTONIC SETTING OF INTRUSIVE BODIES IN SOUTH OF SABZEVAR,” PETROLOGY, vol. 4, no. 16, pp. 1–20, 2014, [Online]. Available: https://sid.ir/paper/196930/en

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