Results 21 to 30 of about 2,154 (289)
Nephrite placers types of Kunlun and adjacent Tarim depression, China
Известия высших учебных заведений: Геология и разведка, 2015 Preconditions of nephrite placers formation in the Central Kunlun mountains and adjacent Tarim depression are considered in Russian literature for the first time: the presence of the primary deposits in metasomatic rocks localized in alpine-type ...
P. A. Ignatov, Chjao Hen
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PLACER OF IRON-BEARING MINERALS IN THE SAKHALIN REGION
Известия Томского политехнического университета: Инжиниринг георесурсов, 2019 Yuriy A. Bilibin has repeatedly stressed that in order to understand the picture of the formation of placers, you need to know the full cycle of their transformations. Much attention has been paid in recent years to the problems of finding ancient buried
Vyacheslav A. Melkiy +1 more
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SECONDARY PLATINUM-GROUP MINERALS FROM A PLACER OF THE BOLSHOY SAP RIVER (CENTRAL URALS) [PDF]
МинералогияThe object of the present study includes grains of platinum-group minerals (PGMs) from a concentrate, which was obtained during mining of a technogenic gold placer near the Pervomaisky duniteharzburgite massif (Central Urals).
V.V. Murzin, K.N. Malitch, A.Yu. Kisin
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Classification scheme for surface textures of gold nuggets from Finnish Lapland [PDF]
Bulletin of the Geological Society of Finland, 1996 A study was made of the surface textures of about 100 gold nuggets (diameter 2-56 mm) sluiced and panned in the Lemmenjoki, Ivalojoki and Tankavaara areas of northern Finland.
K.A. Kinnunen
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Status of development orientations for mining titanium placers in Vietnam
Горные науки и технологии, 2016 Vietnam has potential reserves of titanium placers, located mainly along the coast of the Middle spreading across provinces from Thanh Hoa to Ba Ria – Vung Tau.
Xuan Nam Bui , Si Giao Ho
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Placers and ores, Park County, Colorado
, 2022 Mine report no. 1320.Includes assay reports, maps and handwritten notes.Typescript (carbon copy).Maps are entitled: Plat of Stafford claims, California mining district, Montezuma county, Colo.
Marks, John H. (John Henry) +2 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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Transition of plant resins from the biosphere to the lithosphere
Geo&Bio, 2020 In the article the authors consider in detail the process of transition of plant resins from the biosphere to the lithosphere, characterize the conditions and paleogeographic situation of such transition, the formation of deposits of resin minerals and ...
Viktor M. Matsui, Uliana Z. Naumenko
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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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GEOELECTRIC ATTRIBUTES OF RECLAIMED POST-MINING PLACER GOLD DEPOSITS
Известия Томского политехнического университета: Инжиниринг георесурсов, 2022 The relevance of the study is determined by the need to identify post-mining placers among the original and delineate untouched areas within the reclaimed landfills during prospecting and exploration for placer gold.
Polina S. Osipova +3 more
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