Results 281 to 290 of about 2,445,786 (344)

Borehole Geophysics in Gold Exploration

Symposium on the Application of Geophysics to Engineering and Environmental Problems 1997, 1997
The Borehole Geophysics Section of the Geological Survey of Canada has acquired multiparameter borehole geophysical logs in several holes in gold deposits in Ontario. These measurements were made to document the geophysical signatures of the ore zones and host rocks, and to determine which physical properties may be used to outline zones favourable for
K.A. Pflug, P.G. Killeen, C.J. Mwenifumbo   +2 more
openaire   +1 more source

Spatial distribution and trace element geochemistry of laterites in Kunche area: Implication for gold exploration targets in NW, Ghana

Journal of African Earth Sciences, 2019
Kunche area is located in NW Ghana within the Wa-Lawra greenstone Birimian belt and is composed mainly of volcaniclastics, metasediments and some intrusive granitoids. The area is covered with laterites making it difficult to identify exploration targets.
E. D. Sunkari, Michael Appiah-Twum, A. Lermi   +2 more
semanticscholar   +1 more source

Typification of Gold Deposits for Evaluation and Exploration Purposes

Moscow University Geology Bulletin, 2022
The issues of choosing the parameters of the exploration network based on quantitative criteria of exploration: the accuracy of the assessment of average grades and the error of geometrization are considered. Acceptable values of criteria for C1 category reserves are established based on the results of the analysis of actual data.
P. I. Kushnarev, A. A. Samsonov
openaire   +1 more source

Gold exploration success

Applied Earth Science, 2011
AbstractDiscovery of a goldfield is a rare and difficult event, which contrasts with the normal outcome of exploration that is non-discovery. As there are many gold provinces globally and numerous discoveries annually, the recent and historical records of success are a great source of ideas to learn from and to enhance the rate of discovery.Over the ...
openaire   +2 more sources

Critical analysis of successful gold exploration methods

Transactions of the Institution of Mining and Metallurgy Section B-Applied Earth Science, 2014
L. Brown, J. Vearncombe
exaly   +2 more sources

Geophysical exploration for gold

1991
The 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
openaire   +1 more source

Magnetotelluric exploration of deep-seated gold deposits in the Qingchengzi orefield, Eastern Liaoning (China), using a SEP system

, 2020
The Liaodong Peninsula in northern China has undergone multi-stage magmatic and tectonic modifications, similar to those recorded by the Jiaodong gold province that is the largest gold-producing district in China, indicating that Liaodong Peninsula has ...
Q. Di, G. Xue, Qingdong Zeng, Zhongxing Wang, Z. An, Da Lei   +5 more
semanticscholar   +1 more source

Geophysical implications for the exploration of concealed orogenic gold deposits: A case study in the Sandy Lake and Favourable Lake Archean greenstone belts, Superior Province, Ontario, Canada

, 2020
Since 2000, gold discovery rates have not reflected the record levels of exploration expenditure, with those discoveries that are made being predominantly in areas of post-mineral cover.
D. Müller, K. Kwan, D. Groves
semanticscholar   +1 more source

Gold grain morphology and composition as an exploration tool: application to gold exploration in covered areas

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, Gerard Hérail, Victor Maksaev, Carlos Palacios, Philippe de Parseval, Fabían Sepulveda, Rodrigo Orellana, Pablo Rivas, Cesar Ulloa   +8 more
openaire   +1 more source

Point and imaging spectroscopy investigations on the Pedra Branca orogenic gold deposit, Troia Massif, Northeast Brazil: Implications for mineral exploration in amphibolite metamorphic-grade terrains

Ore Geology Reviews, 2019
The Pedra Branca gold deposit is a recent discovery conducted by private exploration companies in the Troia Massif of the northern Borborema Province, Northeast Brazil.
J. Naleto, M. Perrotta, F. Costa, C. R. S. Filho   +3 more
semanticscholar   +1 more source