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Economic Geology, 2003
Recent fluvial sediments of the Rio Neuquen, Argentina, contain variable amounts of placer gold. In addition to rounded, detrital placer gold, the sediments also contain pristine crystalline gold (type 1 gold), which occurs as overgrowths on detrital placer gold cores. Type 1 gold is locally rimmed by gold with a wormlike or crystalline texture (type 2
A. J. McCready, J. Parnell, L. Castro
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Recent fluvial sediments of the Rio Neuquen, Argentina, contain variable amounts of placer gold. In addition to rounded, detrital placer gold, the sediments also contain pristine crystalline gold (type 1 gold), which occurs as overgrowths on detrital placer gold cores. Type 1 gold is locally rimmed by gold with a wormlike or crystalline texture (type 2
A. J. McCready, J. Parnell, L. Castro
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Paradoxes of the placer gold economy
POWER AND ADMINISTRATION IN THE EAST OF RUSSIA, 2022The article is devoted to the study of influence of placer gold mining on the socio-economic processes in in the eastern areas of Russia on the example of the Trans-Baikal territory. Reconciliation of economic and environmental interests in the extraction of placer gold remains one of the most relevant in the field of natural resource management.
I. P. Glazyrina +2 more
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A Placer-Gold Evaluation Exercise
Journal of Geological Education, 1984An interesting application of applied geology is the location and evaluation of mineral deposits. This particular lab exercise allows the students to individually simulate the process of locating a placer gold paystreak on their own mining claim. Incorporated within the exercise is the arithmetic of computing the total value of the gold on the claim ...
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1991
In this chapter, ancient placers refer to deposits of Archaean and early Proterozoic age. Because each deposit may cover hundreds of square kilometres, they present economically attractive exploration targets. Individual ancient placer deposits like the Steyn/Basal placer in the Welkom goldfield of South Africa have produced in excess of 4500 t (metric
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In this chapter, ancient placers refer to deposits of Archaean and early Proterozoic age. Because each deposit may cover hundreds of square kilometres, they present economically attractive exploration targets. Individual ancient placer deposits like the Steyn/Basal placer in the Welkom goldfield of South Africa have produced in excess of 4500 t (metric
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Case Study: Placer Gold Mining
1988The very word ‘gold’ conjures up very different pictures to the other minerals discussed in this book. Countless Hollywood pictures have inscribed the images of the 1849 California gold rush firmly on our minds not as deep mines but as the ‘Old Timer’ painstakingly panning for the gold in the river. Whilst much of the world’s supply now comes from deep
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Promising Mining Technologies for Gold Placers in Transbaikalia
Journal of mining science, 2017V. Oparin +5 more
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Alluvial gold placers directly related to primary sources: An important forecast criterion
Doklady earth sciences, 2014G. V. Nesterenko, S. Zhmodik
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Placer-lode gold relationships in the Nansen placer district, Yukon
2016Compositional studies have been undertaken on gold particles recovered from hypogene ore, eluvial material and placer samples in and around the Klaza property. These data have been correlated with previous descriptions of in situ mineralization to elucidate placer-lode relationships and systematic change in gold compositions between porphyry and ...
Chapman, RJ +3 more
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