نتایج جستجو برای: orogenic gold mineralization
تعداد نتایج: 97355 فیلتر نتایج به سال:
The world-class Macraes orogenic gold deposit (∼10Moz resource) formed during the late metamorphic uplift of a metasedimentary schist belt in southern New Zealand. Mineralising fluids, metals and metalloids were derived from within the metasedimentary host. Helium and argon extracted from fluid inclusions in sulphide mineral grains (three crush extractions from one sample) have crustal signatur...
Shelgerd area is located south of Mashhad, N.E of Iran, within Binalud Structural Zone. This region is affected by regional metamorphism, slate and phylite are the main metamorphic rocks of the area. Teriassic slate, phyllite, sandstone and Jurassic conglomerates crop out parallel to Sang bast- Shandize fault. Mineralization occurred as vein type, with trend of N65E to N50W with 75 degrees to t...
25 26 The Tropicana gold deposit is located adjacent to the margin of the Yilgarn craton in 27 the Albany–Fraser orogen, Western Australia. The deposit is hosted in granulite facies 28 quartzo-feldspathic gneisses of the Archean Tropicana Gneiss. Ore bodies comprise 29 biotite-pyrite alteration concentrated in shear zones that formed during NE-SW 30 shortening in the late Archean, and clearly p...
The Dobroe deposit with 10 t gold reserves is one of the mines located within Yenisei Ridge Orogenic Belt. ore-forming conditions orogenic deposits are have recently been widely discussed. A comprehensive study fluid inclusions revealed that was formed by water–carbon dioxide and carbon dioxide–hydrocarbon fluids a temperature range 180 to 360 °C, pressure 0.8 1.3 kbar, salinity 1.5 15.0 wt.% (...
DOI:10.17014/ijog.9.3.279-290 The Wanagon Gold prospect area located in the Ertsberg District, Papua Province, eastern part of Indonesia, is predominantly underlain by Upper Mesozoic to Cenozoic sedimentary rocks intruded Sill monzodiorite-diorite and andesite intrusion (Wanagon Dike). study previous researchers at was based on pre-2005 exploration data did not contain extensive additional dril...
The Cabaçal deposit is located in SW Amazonian Craton, Mato Grosso State, Brazil, with important Au-Zn-Cu mineralization. ore hosted by the Alto Jauru orogenic rocks (1.79-1.74 Ga) comprised of felsic volcanic and volcanoclastic mineralizations occur as bands concordant mylonitic foliation, breccias, quartz-carbonate veins rock-disseminated, polymetallic comprises chalcopyrite, pyrite, marcasit...
The Tonggou deposit is a porphyry Cu and vein-type Cu-Zn mineralization system located in the Bogda Orogenic Belt, north of Eastern Tianshan. Systematic fluid inclusion analyses were performed on granular quartz from magnetite–quartz stage pyrite–chalcopyrite–quartz mineralization. During early mineralization, ore-forming fluids at high temperatures (450–501 °C) salinity (51.2–55.2 wt.% NaCl eq...
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