Gold and gold-bearing volcanogenic massive sulphide deposits of the Central Cuba
نویسندگان
چکیده
منابع مشابه
Volcanogenic Massive Sulphide Deposits
Volcanogenic massive sulphide (VMS) deposits are also known as volcanic-associated, volcanic-hosted, and volcano-sedimentary-hosted massive sulphide deposits. They typically occur as lenses of polymetallic massive sulphide that form at or near the seafloor in submarine volcanic environments. They form from metal-enriched fluids associated with seafloor hydrothermal convection. Their immediate h...
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The Eagle Bay assemblage in south central British Columbia contains numerous polymetallic massive sulphide deposits, mainly within highly deformed and metamorphosed Devonian felsic volcanic rocks. A number of these, including Rea and Homestake, have had limited past production, and others have undergone extensive exploration and development. Less known and understood are the sediment-hosted mas...
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Introduction Application of near-infrared absorbing nanostructures can induce hyperthermia, in addition to providing more efficient photothermal effects. Gold-gold sulfide (GGS) is considered as one of these nanostructures. This study was performed on a tissue-equivalent optical-thermal phantom to determine the temperature profile in the presence and absence of GGS and millisecond pulses of a ...
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Barika gold mineralization occurred in a Cretaceous metavolcano-sedimentary sequence at northwestern Sanandaj-Sirjan zone. Gold-rich volcanogenic massive sulfide mineralization occurred in a rhyolite to rhyolitic tuff unit which is completely in Barika shear zone. Based on electron microprobe studies, gold is observed to form electrum mostly, and in lattice of other minerals, such as pyrite, ga...
متن کاملGold Bearing Conglomerates in some Molasse Basins of Iran
This article lists a number of geological data on the conditions of formation of some major gold deposits in the conglomerates of the Earth's crust. We analyze the metallogenic, tectonic, stratigraphic and other factors controlling the formation of gold-bearing conglomerates in certain fields, such as the Witwatersrand (S. Africa) and Darwaz (Tajikistan). The following tectonic factors play the...
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ژورنال
عنوان ژورنال: Proceedings of higher educational establishments. Geology and Exploration
سال: 2021
ISSN: 2618-8708,0016-7762
DOI: 10.32454/0016-7762-2020-63-3-27-37