Results 331 to 340 of about 2,300,160 (396)
Some of the next articles are maybe not open access.
Chapter 32: Gold Deposits of the Archean Abitibi Greenstone Belt, Canada
Geology of the World’s Major Gold Deposits and Provinces, 2020The Neoarchean Abitibi greenstone belt in the southern Superior Province has been one of the world’s major gold-producing regions for almost a century with >6,100 metric tons (t) Au produced and a total endowment, including production, reserves, and ...
B. Dubé, P. Mercier-Langevin
semanticscholar +1 more source
Ore Geology Reviews, 2019
Mana is a world-class Paleoproterozoic orogenic gold district (∼8.0 Moz) that includes five gold deposits (Fofina, Nyafe, Siou, Wona-Kona and Yaho) hosted in various rocks in the northern part of the Birimian Hounde greenstone belt, western Burkina Faso.
J. Augustin, D. Gaboury
semanticscholar +1 more source
Mana is a world-class Paleoproterozoic orogenic gold district (∼8.0 Moz) that includes five gold deposits (Fofina, Nyafe, Siou, Wona-Kona and Yaho) hosted in various rocks in the northern part of the Birimian Hounde greenstone belt, western Burkina Faso.
J. Augustin, D. Gaboury
semanticscholar +1 more source
Laser-induced deposition of gold
AIP Conference Proceedings, 1986AbstractThe laser-induced, vapor-phase deposition of gold metal from dimethyl-(2,4-pentanedionato) gold (III) and two fluorinated derivatives was examined by both photopyrolytic (LCVD) and photochemical modes of decomposition. High purity gold deposits are formed by LCVD with the rates of deposition being extremely vapor pressure dependent and thus ...
openaire +1 more source
, 2020
Trace elements distribution in minerals and formation mechanism of visible gold are poorly understood in intrusion-related gold systems. Here, we choose the Baiyun gold deposit, which is hosted within the Paleoproterozoic metamorphic rocks in the ...
Guotao Sun +4 more
semanticscholar +1 more source
Trace elements distribution in minerals and formation mechanism of visible gold are poorly understood in intrusion-related gold systems. Here, we choose the Baiyun gold deposit, which is hosted within the Paleoproterozoic metamorphic rocks in the ...
Guotao Sun +4 more
semanticscholar +1 more source
ACS Earth and Space Chemistry, 2019
Carlin-style (sediment-hosted, “invisible” gold) and epithermal gold deposits are commonly enriched in mercury (Hg), but the source of this metal is not well-known.
Runsheng Yin +2 more
exaly +2 more sources
Carlin-style (sediment-hosted, “invisible” gold) and epithermal gold deposits are commonly enriched in mercury (Hg), but the source of this metal is not well-known.
Runsheng Yin +2 more
exaly +2 more sources
2020
Placer gold deposits are abundant in Mongolia and form through endogenic and exogenic processes. Deposits are classified into four major genetic types: (1) eluvial-weathering zone, (2) deluvial, (3) proluvial, and (4) alluvial. The most economic deposits are often sourced from upper Cretaceous rocks and formed in late Cenozoic alluvial fans (Liskun and
Tankhain Semeihan, Uyanga Bold
openaire +1 more source
Placer gold deposits are abundant in Mongolia and form through endogenic and exogenic processes. Deposits are classified into four major genetic types: (1) eluvial-weathering zone, (2) deluvial, (3) proluvial, and (4) alluvial. The most economic deposits are often sourced from upper Cretaceous rocks and formed in late Cenozoic alluvial fans (Liskun and
Tankhain Semeihan, Uyanga Bold
openaire +1 more source
Antimony in rutile as a pathfinder for orogenic gold deposits
Ore Geology Reviews, 2019In our study we explore the applicability of rutile as a pathfinder for orogenic gold deposits, which are an important source of this metal worldwide. We analysed rutile associated with orogenic Au deposits from three different Precambrian terranes, the ...
A. Agangi +6 more
semanticscholar +1 more source
Electrolytic Gold Deposition on Dodecanethiol-Modified Gold Films
Langmuir, 2009The electrochemical nucleation and growth of Au from a Au sulfite electrolyte onto dodecanethiol-modified Au surfaces is investigated by a combination of microscopy and chronoamperometry methods. The self-assembled dodecanethiol monolayers are continuous but exhibit defects in correspondence of the Au grain boundaries and on top of Au terraces ...
Gyana, Pattanaik +3 more
openaire +2 more sources
1987
Placer deposits provided early man with the first samples of gold and thereafter have accounted for a large production of the metal. If we include the Witwatersrand and other quartz-pebble conglomerates as fossil placers or modified placers, the placer type of auriferous deposit has provided more than two thirds of the world’s store of gold, about 80 ×
J. B. Tyrrell +12 more
openaire +1 more source
Placer deposits provided early man with the first samples of gold and thereafter have accounted for a large production of the metal. If we include the Witwatersrand and other quartz-pebble conglomerates as fossil placers or modified placers, the placer type of auriferous deposit has provided more than two thirds of the world’s store of gold, about 80 ×
J. B. Tyrrell +12 more
openaire +1 more source
Metallogenetic model of Jiaodong-type gold deposits, eastern China
Science China. Earth Sciences, 2023Jun Deng +8 more
semanticscholar +1 more source