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Showing 1 to 8 of 8 for “"Hydrothermal Ore Deposits"”.
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Fluid Inclusion Characteristics in Magmatic-Hydrothermal Ore Deposits
Magmatic-hydrothermal ore deposits are formed in association with aqueous fluids that exsolve from hydrous silicate melts during ascent and crystallization. These fluids are invariably trapped as inclusions in vein-filling minerals associated with hydrothermal fluid flow, and their composition may …
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Spatial and temporal evolution of fluids in hydrothermal ore deposits
Magmatic-hydrothermal systems typically have vertical extents of several hundred<br />meters and their geochemical characteristics (e.g. mineral assemblages) vary considerably<br />over that vertical extent. As a consequence the expression in outcrop varies depending on<br />the level of erosion. …
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The Relationship Between Structural and Tectonic Evolution and Mineralization at the Coles Hill Uranium Deposit, Pittsylvania County, Virginia
… of structure and tectonics in the formation of hydrothermal ore deposits and the localization of high-grade mineralization associated with fractures is well documented. In this study we have characterized the structural setting associated with uranium mineralization in the Coles Hill uranium …
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Paleozoic stratigraphy as an ore control of hydrothermal, base-metal, sulfide deposits in New Mexico
… the concept or regional stratigraphic control of hydrothermal ore deposits has not received much attention in the literature as a possible exploration guide for locating additional ore bodies. This concept is applied on a regional scale to Paleozoic strata in thirteen mining districts with …
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Magmatic and volcanic processing of volatile and chalcophile elements
… to the energy transition. However, with existing ore grades declining and newer resources harder to find, meeting the growing global demand for metals poses a significant challenge to current supply capacity. Over 70% of global copper is derived from porphyry copper deposits (PCDs) associated with …
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Emerging stable isotope techniques in hydrothermal research: new methods applied to carbonates and hydrous minerals in ore deposits and geothermal fields
… and subsequent alteration history. In hydrothermal systems, isotope tools have been applied to interpret fluid origin, temperature, and interaction with host rock. The research carried out here makes use of emerging techniques to measure hydrogen, oxygen, carbon, and clumped isotopes in …
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Volcanic, structural, and hydrothermal controls on coincident Archean Low and High Sulfidation VMS Systems within the Onaman Assemblage, Onaman-Tashota Greenstone Belt, Northern Ontario, Canada
… sulfidation volcanogenic massive sulfide (VMS) deposits show characteristics of VMS and high sulfidation epithermal deposits and are suggested to have formed through magmatic fluid contribution to an evolved seawater hydrothermal system. Two superimposed systems within the Neoarchean Onaman …
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Interactions between aqueous fluids and silicate melts : equilibration, partitioning and complexation of trace elements
… process separates fluids and melts, and furthermore, during the ascent, aqueous fluids can react with the adjacent rocks and alter their chemical signature. This is particularly impor- tant during the formation of magmatic-hydrothermal ore deposits or in the late stages of the evolution of …