Ore Geology Reviews
Papers 3200
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Abstract The Anjerd Cu skarn deposit is located 40 km north of Ahar, NW Iran, which comprises three different stages of skarn–type mineralization and metasomatic alteration including (i) prograde, (ii) early retrograde and (iii) late retrograde. Prograde stage is identified by garnet as andradite–grossularite and diopsidic pyroxene crystallization, whereas retrograde stage overprinted the prograde skarn and is predominantly composed of tremolite, actinolite, quartz, epidote and chlorite. Metasom...
Abstract The newly discovered Quemocuo Pb-Zn deposit (7.1 Mt of sulfide ores, grading 1.65-7.17 wt.% Pb and 1.13-5.7 wt.% Zn) is located in the Tuotuohe area of the Sanjiang Tethyan metallogenic belt, SW China. The stratiform and veined ore body is hosted in the limestone of the Upper Permian Labuchari Formation and occur along the NE-trending fault. Four main mineralization stages are distinguished as follows: (i) pyrite + calcite + quartz, (ii) sphalerite + galena + pyrite + calcite + barite +...
Abstract Carbonaceous material (CM)-enriched silica is co-located with gold (Au) mineralization at the Au–Hg McLaughlin deposit, Geysers/Clear Lake area, California, U.S.A. The co-location suggests that hydrocarbons (HC) may be involved in mineralization and metal concentration processes, but little is known about the role of HC in the formation of ore deposits. Previous studies noted liquid oil inclusions in samples from the McLaughlin deposit, and proposed that the HC were liquid at the time o...
Abstract A thorough understanding of the origin and distribution of lithium brine deposits is the foundation for lithium resource exploration, development and utilization. The lithium isotope system, a sensitive geochemical tracer, can be used to track a wide range of geological processes and sources. This study investigates major cations, [Li], and δ7Li of samples (brine lakes, intercrystalline brines, river waters, rain, hot spring waters, spring waters and rocks) from the Qaidam Basin on the ...
Abstract The West Qinling Orogen experienced a complex orogenic history and developed related orogenic gold deposits. Most known orogenic gold deposits in West Qinling are hosted by brittle to ductile shear zones and mainly formed during 220 Ma to 190 Ma. The Ludousou gold deposit, located in the northwesternmost segment of West Qinling, has breccia gold ores controlled by E-W, NE-, NW-, and N-S trending faults, and is hosted by tuff and quartz diorite porphyry and. Uranium-Pb zircon investigati...
Abstract Southeast China with its widespread occurrences of Mesozoic igneous rocks, is one of the largest magmatic provinces worldwide, containing a large variety of mineral types, including hypothermal W-Sn, porphyry Cu, epithermal Au deposits. The Gudongkeng deposit is an example consisting of fluorite mineralisation trending SE over a distance of about 6 km. The major minerals in the deposit include fluorite and calcite of a hydrothermal origin and interpreted as a vein-type deposit associate...
Abstract The mechanisms of scavenging of minor elements in reactive, fluid-dominated systems control the distribution, nature, concentration, and reactivity of economically valuable or deleterious elements in many environments, ranging from hydrothermal ore deposits to sedimentary basins. Here we show that in a high-grade Cu-U ore from the super-giant Olympic Dam ore deposit, remobilized U was scavenged during the fluid-driven replacement of chalcopyrite (CuFeS2) by bornite (Cu5FeS4). Hydrotherm...
Abstract The Thanewasna copper belt in Bastar Craton of central India is well-known for Cu±Au mineralization. In this study, we use major and trace element chemistry of magnetite, hematite, and pyrite, as well as the sulfur isotope composition of chalcopyrite, pyrite and barite from the deposit to characterize the mineralization and to constrain its petrogenesis. The mineralization is hosted in quartz-chlorite veins associated with 2.5 Ga and 1.6 Ga granitoids. The mineralization is focused alon...
Abstract The Argemela mineralized area (AMA), central Portugal, exhibits a nearly continuous magmatic to hydrothermal ore-forming sequence typical of Variscan granite-related rare metal deposits. Disseminated and vein-type mineralization are distributed in two systems, the Argemela Mine (AM) and the Cabeco da Argemela (CA). Disseminated mineralization includes montebrasite, cassiterite and columbite-tantalite dispersed in rare metal granites. Vein-type mineralization occurs both in granites and ...
Abstract The Trans-Sahara belt is one of the mobile belts formed during the Pan African orogeny that spans between ∼870 to∼550 Ma. The Trans-Sahara belt was formed as result of the collision between the converging West African craton, Congo craton, and the Sahara metacraton continental blocks. The belt, with major exposure in the Tuareg and Dahomeyan, consists of pre-Neoproterozoic basement which were thoroughly reworked during the Pan African orogeny, Neoproterozoic metasedimentary and metavolc...
Top fields of study
Hydrothermal circulation