نتایج جستجو برای: primary gold mineralization
تعداد نتایج: 732825 فیلتر نتایج به سال:
Sangan prospect area is located northeast of Torbat-e-Heydarieh in Khorasan Razavi Province and in relation to regional geology, it is situated in eastern section of Khaf-Kashmar-Bardaskan magmatic belt. Metamorphosed sediments of the Shemshak Formation (slate, schist, quartzite) is the oldest unit, which is intruded by Kafardoogh granitic intrusion. The dikes of quartz monzosyenitic and diorit...
The newly discovered Federation deposit, with a resource estimate of 2.6 Mt @ 7.7% Pb, 13.5% Zn, 0.8 g/t Au, and 9 Ag, lies 10 km south the Hera deposit within Cobar Basin Lachlan Orogen. Located just north Erimeran Granite contact between Lower Amphitheatre Group underlying shallow marine Mouramba Roset Sandstone, host siltstones sandstones have been brecciated, intensely silicified, chloritiz...
Ore-reserve estimations of deposits with low mineral concentrations, such as those of copper, gold and tin, are usually made on the assumption that the grades follow a lognormal distribution. Multiple mineralization or reworking of a deposit may have modified the simple distribution expected — producing an overall distribution of grades which can be adequately described by a mixture of lognorma...
This report describes a new mapping project in the Cassiar Mountains, located 70 kilometres northeast of Dease Lake in northern British Columbia. The area is attractive for two reasons. First, it contains rocks that are likely correlative with those of the Yukon-Tanana Terrane, a tract with known volcanogenic massive sulphide potential. Second, combined geological and regional geochemical data ...
Antimony mineralization occured in Hamedan district (Faghireh) which is related to Alvand Granitoids. The mineralization occurcd as a series of veins. Thickness of veins are variable and reach up to 0.7m. The veins are emplaced along high angle faults. These faults acted as a pathway for migration of are nuids. Veins are composed of stibnite, pyrite, realgar and orpiment with quartz as a g...
Modern methods of nanomineralogy (electron microscopy, electron probe microanalysis) were used to study the ores one largest industrial facilities Uzbekistan - Zarmitan gold zone, which includes Zarmitan, Urtalik, Guzhumsay deposits, are located in Koshrabadgranosyenite massif. The development / Au-W Au-Bi-Te Au-As Au-Ag-Te Au-Ag-Se Au-Sb-Ag Au-Hg types ores. Productive mineral-geochemical gold...
The Hatamabad prospect area is located in northeast of Qaen, South Khorasan Province and in northeast of Lut block. The geology of area consists of volcanic rocks with basalt- andesite composition and sedimentary sequences (mudstone, limestone, and conglomerate) with Paleocene-Eocene age that monzodioritic dikes were intruded in them. Monzodioritic dikes have high-k calc-alkaline and metalumino...
This paper focuses on the mapping of alteration minerals and linear structures associated with gold mineralization in Giyani Greenstone Belt (GGB). Spectral Information Divergence (SID) Linear Unmixing (LSU) classification algorithms were applied to ASTER data using image extracted endmember spectra which match spectral profiles predominant (biotite calcite) related GGB. Directional convolution...
The effects of creatine (Cr) supplementation on primary rat osteoblast-like cells cultured as monolayer and micromass were investigated. Cr was added to the medium at concentrations of either 10 or 20 mM. At various time points, the cell cultures were analyzed morphologically, metabolically and biochemically. The degree of differentiation of primary osteoblast-like cell cultures was higher in m...
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