Results 61 to 70 of about 284,858 (281)
Technological Mineralogy of a Copper Anode Slime in Qinghai
Kuangchan zonghe liyong, 2022 In order to improve the technology of the process of noble metal extracted from high lead copper anode slime, the technological mineralogy investigation of the anode slime was studied by chemical analysis methods, XRD, particle size analysis, SEM and EDS.
Huiting Zhang +5 more
doaj +1 more source
Geological Journal, EarlyView.The Pangkaimen Au–Ag deposits belong to the epithermal Au deposits, which are of great significance for guiding the research and development of this type of gold deposit. Metallogenic model diagram of Pangkaimen Au–Ag deposit. ABSTRACT The gold (Au) metallogenic belt in the northern Great Xing'an Range is characterised by the wide occurrence of the ...
Sheng Lu +8 more
wiley +1 more source
European mineral statistics 2002-06 : a product of the World Mineral Statistics database [PDF]
, 2008 European Mineral Statistics has over 300 pages of tables on minerals production and trade. Thirty two countries are covered including all the EU members, EU applicants, Norway and Switzerland. In the first section there are tables by country, followed by
Bide, Tom +6 more
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Geological Journal, EarlyView.Coupled dissolution‐reprecipitation of early formed Cd‐, Fe‐, Ag‐ and Sb‐poor sphalerite through interaction with high‐temperature and high‐sulphur fugacity Cu‐rich fluids, responsible for the formation of the yellow ores, resulted in the formation of Cd‐, Fe‐, Ag‐ and Sb‐rich, heavily chalcopyrite‐diseased sphalerite and enrichment of critical metals ...
Manuel Nopeia +4 more
wiley +1 more source
Yankuang ceshi, 2017 The structure alteration rocks (named as SBT) is the product of sedimentation, tectonization, and hydrothermal alteration. It is the major body hosting many ore deposits such as gold, antimony, and fluorite in Southwest Guizhou.
ZHAO Ping +7 more
doaj +1 more source
Notable Impact of Paleotectonic Stress on Gold Mineralisation in the West Qinling Orogen
Geological Journal, EarlyView.By applying fuzzy clustering and multiple inverse methods, we systematically processed the data of vein and fault slip in this ore deposit to reveal the transition of orogenic geological environment and paleotectonic stress field. Our research results show two different stress states: the northwest–southeast extensional stress field and the northeast ...
Hongyan Wang +3 more
wiley +1 more source
Neutron activation analysis traces copper artifacts to geographical point of origin [PDF]
, 1967 Impurities remaining in the metallic copper are identified and quantified by spectrographic and neutron activation analysis. Determination of the type of ore used for the copper artifact places the geographic point of origin of the ...
Conway, M. +6 more
core +1 more source
An overview of Mesopotamian bronze metallurgy during the 3rd millennium BC [PDF]
, 2005 A
ADAMS, F, Adriaens, Mieke, DE RYCK, I
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Geological Journal, EarlyView.Integrated petrographic, mineralogical and geochemical data from the Hastanetepe Pb–Zn deposit (Balya, Türkiye) reveal multi‐stage hydrothermal alteration and a magmatic sulphur source. Fluid inclusion and sulphur isotope results indicate a complex fluid evolution responsible for skarn‐type Pb–Zn mineralization along limestone–dacite contacts ...
Esra Ünal‐Çakır
wiley +1 more source
Bullion production in imperial China and its significance for sulphide ore smelting world-wide [PDF]
, 2015 Gold and silver production was of major importance for almost all ancient societies but has been rarely studied archaeologically. Here we present a reconstruction of a previously undocumented technology used to recover gold, silver and lead at the site ...
Chen, J +6 more
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