Results 1 to 10 of about 33,525 (163)
Heavy Metals in the Soils of Placer Small-Scale Gold Mining Sites in Myanmar [PDF]
Journal of Health and Pollution, 2020 Background. Artisanal and small-scale mining activities are widely practiced globally. Concentrations of heavy metals associated with gold, such as copper (Cu), zinc (Zn), arsenic (As), cadmium (Cd), mercury (Hg) and lead (Pb) can increase in the ...
Aung Zaw Tun +2 more
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Impacts of Open Placer Gold Mining on Aquatic Communities in Rivers of the Khentii Mountains, North-East Mongolia [PDF]
Mongolian Journal of Biological Sciences, 2010 Since the political change and due to high market prices for gold the mining sector has consid- erably grown in Mongolia and has become one of the most important economical sectors.
Daniel A. Krätz +5 more
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Gold-bearing prospects of the Nizhnegarsky ore-placer node in the Priamur province
Известия высших учебных заведений: Геология и разведка, 2023 Background. The geological structure and gold-bearing capacity of the recently identified Nizhnegarsky potential ore-placer node of the North Bureinsky metallogenic zone of the Priammur province are investigated.Aim.
V. A. Stepanov, A. V. Melnikov
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Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023 The paper presents the results of the study of typomorphic characteristics of placer gold of the tributaries of the Kengeveem River, Magadan region. Placer gold was studied by optical and scanning electron microscopy at the Institute of Volcanology and ...
E.D. Skilskaia, Sh.S. Kudaeva
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Известия высших учебных заведений: Геология и разведка, 2019 About 1400 placers and several dozens of ore gold deposits are known in the Amur gold-bearing province. Placers are to a large degree worked out, so the future of the province is seen to be in the discovery of the new gold deposits.
V. A. Stepanov
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Georesursy, 2020 Based on the results of field research, as well as data from stock reports, two types of placer gold were identified within the Vagran placer cluster, which are indicators of primary mineralization.
Alexander V. Lalomov +2 more
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Geosciences, 2023 The Murcielago gold placer is located in the Lepaguare Valley, Olancho Department (Central Honduras). The placer mineralogy includes silicates (quartz, garnets, amphibole, Ca-pyroxene, micas, epidote, and tourmaline); calcite; and in the heavy fraction ...
Sabrina Nazzareni +6 more
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Method for Revealing Placer Gold Source
Горные науки и технологии, 2019 Material characteristics of placer gold and geological and geomorphological features of placercontaining watercourses allow revealing the type of source that formed the placer.
O. V. Vladimirtseva
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Metamorphic Rock-Hosted Orogenic Gold Deposit Type as a Source of Langkowala Placer Gold, Bombana, Southeast Sulawesi [PDF]
, 2011 DOI: 10.17014/ijog.v6i1.114In 2008, placer gold was discovered in Langkowala area (Bombana Regency), Southeast Sulawesi, Indonesia, and more than 60,000 traditional gold miners in the early 2009 have been operating by digging vertical pits and panning ...
Fadlin, F. (Fadlin) +3 more
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From placer deposits to technogenic mineral formations: resource and historical perspective (a study of Amur region) [PDF]
E3S Web of Conferences, 2020 Attention to mined gold placers as sources of mineral reserve base replenishment is constantly increasing. We conducted an analysis of the field mining ratio regarding the 170-year period of gold mining history in the region, which is roughly divided ...
Mirzekhanov Gadzhi, Mirzekhanova Zoia
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