GEOCHEMISTRY AND GEOCHRONOLOGY OF UPPER CRETACEOUS, MAGNETITE SERIES GRANITOIDS, ARGHASH-GHASEMABAD, NE IRAN

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ALAMINIA ZAHRA; KARIMPOUR MOHAMMAD HASSAN; HOMAM SEYED MASSOUD; FINGER FRITZ

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Journal: PETROLOGY Year:2013 | Volume:3 | Issue:12 Page(s): 103-118

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Title

GEOCHEMISTRY AND GEOCHRONOLOGY OF UPPER CRETACEOUS, MAGNETITE SERIES GRANITOIDS, ARGHASH-GHASEMABAD, NE IRAN

Author(s)

ALAMINIA ZAHRA | KARIMPOUR MOHAMMAD HASSAN | HOMAM SEYED MASSOUD | FINGER FRITZ | Issue Writer Certificate

Keywords

MAGMATISMQ3

UPPER CRETACEOUSQ2

SUBDUCTION ZONEQ1

SABZEVAR ZONEQ2

Abstract

The Arghash gold prospect occurs in the northeastern of Central Iranian domain. It is located in SABZEVAR ZONE, north of Darouneh fault. The exposed rocks in the study area consist of volcanic rocks (andesite and dacite), plutonic rocks mostly diorite, quartz diorite, quartz monzodiorite, granodiorite and granite with minor sedimentary rocks (limestone, sandstone and conglomerate). We focus on a suite of hbl-bearing granitoid rocks consisting of diorite, quartz diorite, quartz monzodiorite and granodiorite. The rocks are metaluminous, medium K, calc-alkaline belonging to Magnetite-series granitoids (I-type). They are related to small numbers of iron bodies and veins. They show low TiO2, P2O5, Nb, La, Zr. Initial 87Sr/86Sr ratios and initial eNd are 0.703755 and+4.74, respectively. U/Pb zircon dating of this suite, using laser inductively coupled plasma mass spectrometry (LA-ICP-MS) yielded mean age of 92.8±0.9 Ma (Turonian). Their chemical compositions as well as initial isotope ratios of 87Sr/87Sr strongly suggest that the original magma formed in a depleted mantle in the SUBDUCTION ZONE in Sabzevar Paleoocean.

Cites

PETROLOGY, GEOCHEMISTRY AND MINERALIZATION OF TERTIARY VOLCANIC ROCKS ASSOCIATED WITH SUBVOLCANIC INTRUSIVE BODIES, WITH SPECIAL REFERENCE TO AGE DATING AND ORIGIN OF GRANITES FROM ARGHASH – GHASEM-ABAD AREA, NE IRAN

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APA: Copy

ALAMINIA, ZAHRA, KARIMPOUR, MOHAMMAD HASSAN, HOMAM, SEYED MASSOUD, & FINGER, FRITZ. (2013). GEOCHEMISTRY AND GEOCHRONOLOGY OF UPPER CRETACEOUS, MAGNETITE SERIES GRANITOIDS, ARGHASH-GHASEMABAD, NE IRAN. PETROLOGY, 3(12), 103-118. SID. https://sid.ir/paper/197042/en

Vancouver: Copy

ALAMINIA ZAHRA, KARIMPOUR MOHAMMAD HASSAN, HOMAM SEYED MASSOUD, FINGER FRITZ. GEOCHEMISTRY AND GEOCHRONOLOGY OF UPPER CRETACEOUS, MAGNETITE SERIES GRANITOIDS, ARGHASH-GHASEMABAD, NE IRAN. PETROLOGY[Internet]. 2013;3(12):103-118. Available from: https://sid.ir/paper/197042/en

IEEE: Copy

ZAHRA ALAMINIA, MOHAMMAD HASSAN KARIMPOUR, SEYED MASSOUD HOMAM, and FRITZ FINGER, “GEOCHEMISTRY AND GEOCHRONOLOGY OF UPPER CRETACEOUS, MAGNETITE SERIES GRANITOIDS, ARGHASH-GHASEMABAD, NE IRAN,” PETROLOGY, vol. 3, no. 12, pp. 103–118, 2013, [Online]. Available: https://sid.ir/paper/197042/en

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