Spectral Angle Mapper Application Using Sentinel-2 in Coastal Placer Deposits in Vigo Estuary, Northwest Spain [PDF]
Remote SensingRemote sensing applications for marine placer deposit exploration remain limited due to the mineralogical complexity and dynamic coastal processes. This study presents the first medium- to high-level detailed multi-scale remote sensing analysis of placer
Wai L. Ng-Cutipa +10 more
doaj +3 more sources
The technology of development of residue objects of precious metals placer deposits [PDF]
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
doaj +4 more sources
Characteristics of Nigeria Inland Placer and Approaches of Exploration and Development —Take the Rare Polymetallic Placer of Nb-Ta-Sn in Jos Plateau as an Example [PDF]
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 +3 more sources
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 +3 more sources
Some feature geology-geopohysical models of placer deposits of diamants [PDF]
RUDN Journal of Engineering Research, 2012 Make an example a feature petrophysical property and geology-geophysical models of placer deposits of diamonds of North Ural. Make a effect mode of geological task determination with geophysical methods.
V Yu Abramov, V I Brovkin
doaj +1 more source
Geochemical Overprinting and Secondary Placer Crystal Formation in the La Cholla District, Quartzsite, Arizona, USA: Evidence from Copper Isotopes, Morphology, and Trace Elements [PDF]
, 2023 Geochemical overprinting on placer gold deposits produces complex deposits with apparently paradoxical geochemical and morphological attributes. The La Cholla placer gold deposits near Quartzsite, Arizona, USA, contain sharp and often undamaged gold ...
Ryan Mathur +3 more
core +1 more source
Internal Structures of Placer Gold as an Indicator of Endogenous and Exogenous Processes [PDF]
, 2022 The study of the internal structures of placer gold on the territory of the east of the Siberian platform, overlain by a thick cover of Mz-Kz deposits, where traditional methods of searching for gold deposits are not effective, allowed us to determine ...
Zinaida Nikiforova
core +1 more source
Typomorphism of Native Gold (Geological-Industrial Types of Gold Deposits in the North-East of Russia) [PDF]
, 2022 This study presents the typomorphic features of native gold grains from three different geological-industrial types (GIT) of gold deposits in the North-East of Russia: (1) gold–arsenic-sulfide in black shale strata (Natalka, Degdekan, Karalveem ...
Galina A. Palyanova +3 more
core +1 more source
Criteria for Determining the Genesis of Placers and Their Different Sources Based on the Morphological Features of Placer Gold [PDF]
, 2021 Based on the identified typomorphic features of placer gold, a set of determined morphogenetic criteria is proposed to identify the genesis of placer gold content and different sources in the platform areas, which allow more correctly selecting search ...
Zinaida Nikiforova
core +1 more source
Placer gold deposits of Arizona [PDF]
, 1972 Eighty-seven placer districts in Arizona are estimated to have produced a minimum of 564,052 ounces of placer gold from 1774 to 1968. The location, areal extent, past production, mining history, and probable lode source summarized for each district are ...
Johnson, M.G.
openaire +3 more sources