Results 121 to 130 of about 4,984 (229)

On epithermal and mesothermal ore deposits of the North-East Russia

open access: yes, 2020
The terrigenous rocks of passive continental edges are very important holding medium for the mesothermal and epithermal deposits of Kolyma-Chukotka region. The time-conjugated relation of epithermal and mesothermal ore forming is characteristic for volcanogenous zones and derives from the fact of successive evolution of epithermal (volcanogenous) and ...
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Botanic-Geographical Analysis of Mesothermic Relicts of Turgai Flora of Azerbaijan

open access: yesBulletin of Science and Practice
From the middle of the Oligocene epoch of the Paleogene period evergreen Poltava flora had been replaced by deciduous tree species of Turgai flora. The taxonomic composition of the relict trees and shrubs belonging to the Turgai flora in Azerbaijan and their botanical and geographical characteristics are analyzed in this article.
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Precious and Base Metal Minerals in Black Sands of the Egyptian Mediterranean Coast: Mineralogical and Geochemical Attributes

open access: yesResources
This paper investigates the mineralogical and geochemical characteristics, as well as the possible sources, of gold, silver, platinum group elements (PGE), copper, and lead found in the beach sands along Egypt’s Mediterranean coast.
Abdel-Aal M. Abdel-Karim, Ahmed Gad
doaj   +1 more source

Structure of geochemical field of mesothermal gold ore deposit Zapadnoe (Lensk ore area)

open access: yesИзвестия Томского политехнического университета: Инжиниринг георесурсов, 2019
The described research is now becoming even more relevant due to the efficiency improvement of expected gold ore exploration based on sophisticated geochemical information processing and interpretation methods. The main aim of the study is to investigate geochemical zoning and to identify anomalous geochemical deposit structure within Zapadnoe gold ore
Roman Yurievich Gavrilov, Danil Khryapin
openaire   +2 more sources

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