Results 21 to 30 of about 15,358 (309)
Dredging technology at placer gold deposits in the Far North
Journal of Degraded and Mining Lands Management, 2023 The volumes of world gold mining were reviewed. As a result of the analysis, it was found that the proportion of placer gold is very insignificant. This is due to the fact that the most easily accessible reserves are substantially depleted, and the ...
Ravil Z Nafikov +3 more
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Kuangchan zonghe liyongRare metal placer deposits and gold placer are scattered in Nigeria's inland region. The spacial order of distribution is belt-like. Placers are of complex compositions.
Haifeng LIU +5 more
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2018 Identification of indicators on placer gold allowed predicting formation types of primary sources of gold and their location in the East Siberian platform, overlapped by thick cover of Meso-Cenozoic deposits, where traditional methods of prospecting of ...
Z. S. Nikiforova
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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
doaj +1 more source
The technology of development of residue objects of precious metals placer deposits
E3S Web of Conferences, 2018 The domestic and foreign experience has been analyzed, showing that the problem of development of geographically close residue goldore deposits was practically not investigated.
Litvintsev Viktor +2 more
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Innovative methods of extracting the loose gold from technogenic deposits in the Irkutsk region
MATEC Web of Conferences, 2018 In Russia and abroad, the scope of the use of gold has significantly expanded, which undoubtedly affected the level of production. However, despite the fairly high rates of gold mining, the economic situation that has developed in recent years makes the ...
Golovina Elena +2 more
doaj +1 more source
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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A Summary of gold fineness values from Alaska placer deposits [PDF]
, 1981 This report is the first in a series of publications by the Mineral Industry Research Laboratory and the Alaska Division of Geological and Geophysical Surveys under a special appropriation by the Alaska State Legislature to the School of Mineral Industry
Hawkins, D.B., Metz, P.A.
core
Cell wall target fragment discovery using a low‐cost, minimal fragment library
FEBS Letters, EarlyView.LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan +5 more
wiley +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source