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Geophysical exploration for gold
1991The world-wide interest in gold that has characterized mineral exploration in the 1980s has had a profound effect on the focus and style of geophysical prospecting. In the 1950s and 1960s, direct detection methods (chiefly airborne and ground electromagnetics (EM)) were applied widely in the search for massive sulphide-hosted base-metal deposits ...
N. R. Paterson, P. G. Hallof
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Australian gold exploration 1976–2003
Resources Policy, 2005Abstract The Australian gold industry has grown enormously over the past 25 years. Australian mine production of gold in 2003 was 284 t, similar to that of the USA, and behind South Africa, the world's largest gold-producing nation. Gold is Australia's third largest commodity export, worth an estimated A$5.3 billion in 2003–2004.
M.B. Huleatt, A.L. Jaques
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Geophysics in Gold Exploration: Application to Greenstone Belt Gold Deposits
3rd International Congress of the Brazilian Geophysical Society, 1993The use of geophysical methods in exploration for greenstone belt gold deposits is as an indirect tool. These methods assist the exploration effort by mapping structures, lithologies, and alteration effects that may be related to mineralization. By using deposit models, and with knowledge of the deposit characteristics that are important for providing ...
D.B. Hoover, W. D. Heran
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Geophysical exploration for gold—A review
GEOPHYSICS, 1986It is almost impossible to get a direct geophysical response from gold because of the low grades in deposits, except when electromagnetic detectors are used for individual shallow nuggets. However, indirect geophysical indications may occur through association of gold with particular host rocks, marker beds, or structures which are, for example, of ...
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The importance of brownfields gold exploration
Mineralium Deposita, 2019Significant growth in the size of gold Resources on many mines of the Yilgarn Craton has occurred well after the deposit was discovered and after mining had commenced. Examples include the Kalgoorlie and Norseman goldfields found more than a century ago and the Jundee and Sunrise goldfields discovered in the 1990s.
Julian R. Vearncombe, G. Neil Phillips
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Simulations of gold exploration samples
Applied Earth Science, 2001AbstractA computer program, GOLDSIM, is offered that determines the sampling distributions of samples taken from gold-bearing lots. The lot is split into size fractions that are weighed and assayed. It is then modelled in terms of the equivalent gold grains in the size fractions and these data are fed into GOLDSIM.
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Unconventional Geochemical Exploration for Gold Deposits
Acta Geologica Sinica - English Edition, 1996Abstract Conventional geochemical exploration for gold deposits has not always been very satisfactory, especially for buried and blind ones. New considerations and methodology in sampling, analysis and interpretation have been developed in China during the past decade. Important considerations for unconventional gold exploration in this paper are that (
Wang Xueqiu, Xie Xuejin
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Geophysical exploration for epithermal gold deposits
Journal of Geochemical Exploration, 1990Abstract Epithermal gold deposits are highly variable in form, ranging from thin quartz veins to large disseminated deposits, and are located in a variety of geological environments. Consequently, they exhibit a wide range of geophysical signatures.
R.J. Irvine, M.J. Smith
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Gold metallogeny in Iran; implications for gold exploration and conceptual modelling
Geochemistry: Exploration, Environment, Analysis, 2023Significant progress in the classification, definition and understanding of the main Au deposit types could significantly aid improvements in Au exploration. Because of the wide occurrence of Au in the central part of the Tethyan Eurasian Metallogenic Belt, Iranian structures composed of more than 17 zones (arcs and blocks) are considered as having one
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Geochemistry: Exploration, Environment, Analysis, 2003
The results of research in the use of Au grain morphological and compositional properties applied in primary Au ore exploration are presented here. Two different and independent topics are discussed: (1) morphological characteristics of Au grains from active stream sediments for use as a distance-to-source indicator; (2) compositional signature of Au ...
Brian K. Townley +8 more
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The results of research in the use of Au grain morphological and compositional properties applied in primary Au ore exploration are presented here. Two different and independent topics are discussed: (1) morphological characteristics of Au grains from active stream sediments for use as a distance-to-source indicator; (2) compositional signature of Au ...
Brian K. Townley +8 more
openaire +1 more source