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- W2776468612 abstract "Abstract The Haftcheshmeh porphyry Cu‐Mo‐Au deposit in the Arasbaran metallogenic belt (AMB) of NW Iran contains more than 185 Mt of ore, with a grade ranging from 0.3% to 0.4%. It is hosted within a porphyritic diorite to granodiorite intruded into an older gabbro ‐ diorite intrusion. 40Ar/39Ar analyses of primary magmatic hornblende from the granodiorite porphyry and gabbro ‐ diorite show plateau ages of 26.41 ± 0.59 Ma, with an inverse isochron age of 25.9 ± 1.0 Ma and a plateau age of 27.47 ± 0.17 Ma, with an inverse isochron age of 27.48 ± 0.35 Ma for these two rock types, respectively. Comparing these new age data with those from the nearby Sungun (20.69 ± 0.35 Ma) and Kighal porphyry deposits defines a northwest‐southeast Cu‐Mo‐Au mineralization zone extending for 20 km over the time span of ∼27 to 20 Ma. Geochemically, Haftcheshmeh rocks are calc‐alkaline with high potassium affinities with tectonic setting in relation to volcanic arc setting. Large ion lithophile elements (LILE) such as Th, U and K show enrichment on a primitive mantle normalized diagram (specially Pb), and are depleted in high field strength elements (HFSE) such as Ti and Nb, pointing to a mantle magma source contamination with crustal materials by subducted oceanic crust." @default.
- W2776468612 created "2018-01-05" @default.
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- W2776468612 date "2017-12-01" @default.
- W2776468612 modified "2023-10-01" @default.
- W2776468612 title "Geochronological Constraints on the Haftcheshmeh Porphyry Cu-Mo-Au Ore Deposit, Central Qaradagh Batholith, Arasbaran Metallogenic Belt, Northwest Iran" @default.
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- W2776468612 doi "https://doi.org/10.1111/1755-6724.13452" @default.
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