Results 1 to 10 of about 801,967 (275)
Minerals (Basel, Switzerland), 2021 We evaluated the significance of the iron and manganese content in sphalerite as a tool for distinguishing between low-sulfidation and intermediate-sulfidation epithermal deposits on the basis of new and previously published electron probe microanalyses data on the Roșia Montană epithermal ore deposit and available microchemical data from the Neogene ...
Madalina Andrii, Călin G Tămaș
exaly +5 more sources
GeosciencesThe Sidi Aissa Pb-Zn-(Ag) District, located within the Nappe Zone of northern Tunisia, has been reinterpreted as a typical intermediate-sulfidation (IS) epithermal mineralization system based on field observations and lithogeochemical analyses ...
Jamel Ayari +5 more
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Journal of Economic Geology, 2020 Introduction The Qoyjeh Yeylaq Pb-Zn (Ag) deposit located 120 km southeast of Zanjan, is situated in the Urumieh-Dokhtar magmatic arc. apart from Prior to this research no work has been published on Pb-Zn (Ag) mineralization at the Qoyjeh Yeylaq ...
Hossein Bagherpour +4 more
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Cretaceous intermediate sulfidation ore system in the Dongkeng volcanic Basin, SE China: Constraints from the Dongji and Maluntou gold deposits [PDF]
Ore Geology Reviews, 2021 Abstract The Dongji (>12.5 t Au @ 4.27 g/t) and Maluntou (>5.0 t Au @ 3.70 g/t) gold deposits are the two largest ones in the Dongkeng Volcanic Basin (DVB), SE China, that are hosted by volcanic rocks. Mineralization is represented by three stages (i.e., stage 1, 2, and 3) that are characterized by four types of unzoned hydrothermal pyrite (i.e ...
David Selby, Jun-Hao Wei
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Ore Geology Reviews, 2020 Abstract Zhengguang is a partly eroded (about ≥500 m being eroded), structurally controlled intermediate sulfidation (IS) epithermal gold-zinc deposit, characterized by wide distribution of base metal sulfides, Fe-poor sphalerite and Mn-calcite, hosted by the Late Cambrian-Early Ordovician basaltic-andesitic volcanic and volcano-sedimentary rocks in ...
Kezhang Qin, Xinyu Zou
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A review of intermediate sulfidation epithermal deposits and subclassification
Ore Geology Reviews, 2019 Abstract Intermediate sulfidation (IS) veins is one of the subtypes of epithermal deposits formed in subduction-related arc settings or post-collisional orogenic belts. The economic and scientific significance of IS deposits has been highlighting importance in Ag-Au-Pb-Zn exploration and study of porphyry-epithermal systems.
Guang-Ming Li, Guo-Xue Song
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Intermediate sulfidation type base metal mineralization at Aliabad-Khanchy, Tarom-Hashtjin metallogenic belt, NW Iran [PDF]
Ore Geology Reviews, 2018 Abstract The Aliabad-Khanchy epithermal base metal deposit is located in the Tarom-Hashtjin metallogenic belt (THMB) of northwest Iran. The mineralization occurs as Cu-bearing brecciated quartz veins hosted by Eocene volcanic and volcaniclastic rocks of the Karaj Formation.
Craig A. Johnson +2 more
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Journal of Economic Geology, 2023 Precious and base metal mineralization in the Qebchaq deposit occurred as brecciated quartz-sulfide veins within the Eocene tuff and lava strata, and the Oligocene quartz diorite-gabbro intrusion.
Mohammad Sohbatloo +2 more
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Ore Geology Reviews, 2019 Abstract The Zhengguang gold deposit, a typical intermediate-sulfidation epithermal deposit, is located in the southeastern part of the Duobaoshan orefield, west of the Hegenshan-Heihe suture zone, in the eastern part of the Central Asian Orogenic Belt.
Cristiana L. Ciobanu, Kezhang Qin
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Journal of Economic GeologyKourcheshmeh Pb-Zn-Cu deposit is located 40 km southwest of Takestan (Qazvin province) and west of the Mardabad-Bouinzahra volcanic belt. The mineralization occurred as Pb-Zn-Cu-bearing quartz veins hosted by early-middle Eocene tuff and lava strata and ...
Sepideh Khanahmadlou +3 more
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