Petrology, geochemistry and tectonic setting of the Hamyerd iron deposit, northeast of Semnan

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haji bahrami maryam; Taghipuor nader; GHORBANI GHASEM

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Journal Paper

Paper Information

Journal: Iranian Journal of Crystallography and Mineralogy Year:2018 | Volume:26 | Issue:1 Page(s): 125-136

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Information Journal Paper

Title

Petrology, geochemistry and tectonic setting of the Hamyerd iron deposit, northeast of Semnan

Author(s)

haji bahrami maryam | Taghipuor nader | GHORBANI GHASEM | Issue Writer Certificate

Keywords

PetrologyQ2

GeochemistryQ1

Volcanic arcQ2

Hamyerd iron depositQ1

SemnanQ2

Abstract

Hamyerd iron deposit is located about 74 km north east of Semnan, in the Jam area. This area is situated in the northern part of Central Iran structural zone. The outcrops are Middle-Eocene volcanic and pyroclastic rocks with andesite to andesite-basalt and tuff composition, which are intruded by some intrusive bodies of monzonite to monzodiorite composition in this area. Iron mineralization is occurred at the contact between intrusive bodies with volcanic rocks. Widespread presence of hematite with minor contents of magnetite, pyrite, barite, and calcite is the main characteristic of mineralization in Hamyerd deposit. Mineralization is occurred as veins and lenses of hematite with leser amounts of magnetite. According to geochemical properties, the sub-volcanic intrusive body of Hamyerd is calc-alkaline and high K calc-alkaline and meta-aluminous in nature, belonging to I-type Volcanic arc granitoids. Enrichment of LIL elements compared with HFS and negative anomaly of Nb and Ti and the samples plot within the VAG field suggest that the sub-volcanic intrusive body of Hamyerd has formed in a Volcanic arc environment, related to the subduction zone.

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APA: Copy

haji bahrami, maryam, Taghipuor, nader, & GHORBANI, GHASEM. (2018). Petrology, geochemistry and tectonic setting of the Hamyerd iron deposit, northeast of Semnan. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, 26(1 ), 125-136. SID. https://sid.ir/paper/405225/en

Vancouver: Copy

haji bahrami maryam, Taghipuor nader, GHORBANI GHASEM. Petrology, geochemistry and tectonic setting of the Hamyerd iron deposit, northeast of Semnan. IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY[Internet]. 2018;26(1 ):125-136. Available from: https://sid.ir/paper/405225/en

IEEE: Copy

maryam haji bahrami, nader Taghipuor, and GHASEM GHORBANI, “Petrology, geochemistry and tectonic setting of the Hamyerd iron deposit, northeast of Semnan,” IRANIAN JOURNAL OF CRYSTALLOGRAPHY AND MINERALOGY, vol. 26, no. 1 , pp. 125–136, 2018, [Online]. Available: https://sid.ir/paper/405225/en

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