Results 341 to 350 of about 2,300,160 (396)
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2016
Brief description of the several orogenic gold deposits is provided together with the basic principles of the gold projects evaluation. Emphasis is made on methodology of the gold deposits sampling, geological interpretation and estimation resources.
Ulrich Kretschmar, Derek McBride
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Brief description of the several orogenic gold deposits is provided together with the basic principles of the gold projects evaluation. Emphasis is made on methodology of the gold deposits sampling, geological interpretation and estimation resources.
Ulrich Kretschmar, Derek McBride
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Gold in iron oxide copper–gold deposits
Ore Geology Reviews, 2016 Iron oxide copper–gold (IOCG) deposits contain economic or anomalous gold, and the gold distribution is important both for its economic significance and ore genesis.
Zhimin Zhu
exaly +2 more sources
MRS Proceedings, 1988
ABSTRACTMetallic gold was deposited on several different substrates by laser pyrolysis of a goldcontaining ink. The gold was deposited in the form of lines by translating the substrate during laser pyrolysis; linewidths ranged from 10 Am to 1.5 mm. This process was performed in open air.
Jeffrey A. Sell +2 more
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ABSTRACTMetallic gold was deposited on several different substrates by laser pyrolysis of a goldcontaining ink. The gold was deposited in the form of lines by translating the substrate during laser pyrolysis; linewidths ranged from 10 Am to 1.5 mm. This process was performed in open air.
Jeffrey A. Sell +2 more
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The big mantle wedge and decratonic gold deposits
Science China. Earth Sciences, 2021R. Zhu, Wei-dong Sun
semanticscholar +1 more source
Ore Geology Reviews, 2017
The Verkhoyansk-Kolyma folded region (VKFR) contains numerous Late Jurassic – Early Cretaceous orogenic gold deposits which are the source for large alluvial gold placers. This study is focused on determination of the relationship between ore-controlling
Valery Fridovsky
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The Verkhoyansk-Kolyma folded region (VKFR) contains numerous Late Jurassic – Early Cretaceous orogenic gold deposits which are the source for large alluvial gold placers. This study is focused on determination of the relationship between ore-controlling
Valery Fridovsky
semanticscholar +1 more source
The distribution, characteristics and fluid sources of lode gold deposits: An overview
Science China. Earth Sciences, 2021C. Wang +4 more
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Gold deposits rich in bismuth minerals: An important type of gold deposits
2005Several gold deposits, both in China and abroad, are drawing attention because of their abundant bismuth minerals. Comparative studies on some of them indicate that certain characteristics can aid in identifying standards and exploration criteria of the type of gold deposits. Firstly, the lode gold ore bodies are structurally controlled.
Ren Yunsheng +2 more
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Economic Geology, 1970
Studies of fresh carbonate host rocks and unoxidized gold ores of the Carlin mine indicate that gold, quartz, barite, pyrite, and other sulfides were introduced into the Roberts Mountains Formation by acid hydrothermal solutions. Laboratory investigations on the carbonaceous materials in the host rocks and ores and studies of reactions between ...
Arthur S. Radtke, Bernard J. Scheiner
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Studies of fresh carbonate host rocks and unoxidized gold ores of the Carlin mine indicate that gold, quartz, barite, pyrite, and other sulfides were introduced into the Roberts Mountains Formation by acid hydrothermal solutions. Laboratory investigations on the carbonaceous materials in the host rocks and ores and studies of reactions between ...
Arthur S. Radtke, Bernard J. Scheiner
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Transactions of the IMF, 1987
Comparaison de deux methodes de mesure: l'une basee sur le principe d'Archimede et l'autre consistant a comparer l'epaisseur des depots par fluorescence ...
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Comparaison de deux methodes de mesure: l'une basee sur le principe d'Archimede et l'autre consistant a comparer l'epaisseur des depots par fluorescence ...
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