PETROGRAPHY AND GEOCHEMICAL CHARACTERISTICS OF NAKHILAB IGNEOUS COMPLEX, NORTHWEST OF ZAHEDAN

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HEDAYATI NAJME; BOOMERI MOHAMMAD; BIABANGARD HABIB

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Journal: PETROLOGY Year:2016 | Volume:7 | Issue:26 Page(s): 23-44

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Information Journal Paper

Title

PETROGRAPHY AND GEOCHEMICAL CHARACTERISTICS OF NAKHILAB IGNEOUS COMPLEX, NORTHWEST OF ZAHEDAN

Author(s)

HEDAYATI NAJME | BOOMERI MOHAMMAD | BIABANGARD HABIB | Issue Writer Certificate

Keywords

PORPHYRY CUQ2

CALC-ALKALINEQ2

SUBDUCTIONQ2

NAKHILAB IGNEOUS COMPLEXQ1

ZAHEDANQ2

SISTAN SUTURE ZONEQ1

Abstract

Nakhilab igneous complex is located in 145 km northwest of ZAHEDAN and is geologically situated between Lut block and the Sistan-suture zone. Rock units in the area range from Cretaceous to Quaternary and consist of sedimentary and igneous types. The igneous rocks occur as intrusive and extrusive in the Nakhilab. The extrusive rocks occur as lava and pyroclastic and consist of basalt, basaltic andesite, andesite and rhyolite. The intrusive rocks occur as stock and dyke and consist of gabbro, diorite and granodiorite. These rocks are porphyry and granular in texture. In these rocks, plagioclase, pyroxene, hornblende, biotite and quartz are the main minerals and apatite, sphene and magnetite are the accessory minerals. The intrusive rocks that were altered by hypogene and supergene processes are associated with Cu mineralization in the central part. The igneous rocks in the Nakhilab are metaluminus and calcalkaline. Patterns of minor and rare earth elements normalized to MORB and Chonderit show that LREE and LILE contents are sharply higher than HREE and HFSE contents, respectively. Higher contents of LREE and LILE compared to HREE and HFSE, respectively, negative anomalies of Zr, Ti, P and positive anomalies of K, Rb, Sr, suggest that the study samples may belong to an active continental margin. The studied igneous rocks were probably solidified from a basaltic magma by AFC processes that derived from partial melting a subducting oceanic crust and it`s above mantle wedge.

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APA: Copy

HEDAYATI, NAJME, BOOMERI, MOHAMMAD, & BIABANGARD, HABIB. (2016). PETROGRAPHY AND GEOCHEMICAL CHARACTERISTICS OF NAKHILAB IGNEOUS COMPLEX, NORTHWEST OF ZAHEDAN. PETROLOGY, 7(26), 23-44. SID. https://sid.ir/paper/197054/en

Vancouver: Copy

HEDAYATI NAJME, BOOMERI MOHAMMAD, BIABANGARD HABIB. PETROGRAPHY AND GEOCHEMICAL CHARACTERISTICS OF NAKHILAB IGNEOUS COMPLEX, NORTHWEST OF ZAHEDAN. PETROLOGY[Internet]. 2016;7(26):23-44. Available from: https://sid.ir/paper/197054/en

IEEE: Copy

NAJME HEDAYATI, MOHAMMAD BOOMERI, and HABIB BIABANGARD, “PETROGRAPHY AND GEOCHEMICAL CHARACTERISTICS OF NAKHILAB IGNEOUS COMPLEX, NORTHWEST OF ZAHEDAN,” PETROLOGY, vol. 7, no. 26, pp. 23–44, 2016, [Online]. Available: https://sid.ir/paper/197054/en

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