Titlebook: Uranous Mineralogy of Hypergene Reduction Region; Using electron micro Olga Alexandrovna Doynikova Book 2021 Springer Nature Switzerland AG

LANCE

,U-Ore Mineralization of Hypergenesis Reduction Zone: Uranium “Blacks”,eralogical ATEM-studies of loose black U-mineralization show that uranium black’s composition can be represented by at least three different mineral forms: oxide (uraninite of different degrees of crystallinity), silicate (coffinite) and phosphate (ningyoite).

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使閉塞

2366-1585 d selected examples of different genetic types of uranium deposits of black sooty ores; the data gathered from all findings on ningyoite worldwide, and new crystal chemistry data on tetravalent uranium phosphates.?.978-3-030-67185-3978-3-030-67183-9Series ISSN 2366-1585 Series E-ISSN 2366-1593

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,U-Ore Mineralization of Hypergenesis Reduction Zone: Uranium “Blacks”,ium-ore accumulations in the hypergenesis region (have been identified by L.N. Belova) was described. Examples of typical uranium mineral zones manifestation in nature (at known U-deposits) are shown in the table. Processes of hypergenic zonality formation by uranium minerals have been looked and sc

表示問(wèn)

New Minerals Family: U4+-Phosphates,tion on U.-phosphates has been systematized and generalized. Here optical, chemical and structural minerals characteristics were summarized in a single table. These phases’ mineralogical characteristics (morphological and crystallochemical) and their occurrences described. The first section summariz

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Some Aspects of Uranous (U4+) Mineralogy in the Light of Crystallochemical ATEM Data,nd Brockite (samples Fersman Mineralogical Museum, Moscow) have been analyzed together with the literature data on rhabdophane-like minerals. Existing systematization in this mineral group have been clarified. Questions of isomorphism and systematics of phosphates in Rhabdophane mineral group are co

呼吸

Paleochannel Sandstone-Type Uranium Deposits of Vitim Ore Region,ium ore region, Russia. All deposits belong to sandstone economic type, basal channel subtype; in Russian it commonly called as paleovalley, paleo-riverbed or paleo-streambed. Here predominant ore component is ningyoite in crystalline and mineraloid form. These ores, little-known previously and unkn

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