History of the First Ore Prospecting Expedition of 1491 in the Arctic Zone of the Russian State
Арктика и Север, 2022 In the Middle Ages, the Russian state, formed around Moscow, was in dire need of metals. However, only comparatively poor quality swamp iron was mined on the territory of the Russian principalities.
Konstantin V. Lobanov +3 more
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The First Scientific Expeditions to the Bering Strait and to the Russian Colonies in America
Арктика и Север, 2022 Based on the geographical atlases of the 16th century, the German scientist G. Leibniz proposed to Peter I a project aimed at discovering a strait between Asia and America, studying the Earth’s magnetic field, cartographic and other research in Russia ...
Aleksandr Ya. Dokuchaev +4 more
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X-ray absorption spectroscopy study of the chemistry of «invisible» Au in arsenian pyrites [PDF]
E3S Web of Conferences, 2019 Arsenian pyrite is an abundant mineral occurring in many geological settings at the Earth’s surface, including hydrothermal ore deposits which are the main source of Au.
Filimonova Olga +8 more
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Controversial Issues of Hydrocarbon Field Formation and the Role of Geomagnetic Fields
International Journal of Geophysics, 2022 This review paper presents controversial issues on the formation of hydrocarbon deposits. We look into the geological contradictions of the abiogenic and biogenic theories of petroleum origin, indicating the connection between hydrocarbon deposits and ...
Andrey A. Ponomarev +5 more
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FAHLORES FROM PORPHYRY Cu-(Mo) DEPOSITS OF THE URALS [PDF]
Минералогия, 2022 The paper describes chemistry of tetrahedrite-tennantite group minerals from three porphyry deposits of the Urals: Mikheevskoe and Tomino porphyry copper deposits on the South Urals and Talitsa Mo porphyry deposit on the Middle Urals.
O.Yu. Plotinskaya, E.V. Kovalchuk
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Paleomagnetism of the early carboniferous thickness of Tuva [PDF]
Russian Journal of Earth Sciences, 2022 Paleomagnetic studies of the early Carboniferous strata of Tuva have been carried out. As a result of the component analysis, post-folding secondary and pre-folding, probably close to the primary components of magnetization, were identified in them ...
Kovalenko D., Buzina M.
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Current state and development prospects of geological exploration activity for oil and gas in the Fergana Region of the Republic of Uzbekistan [PDF]
Нефтегазовая геология: Теория и практика, 2021 The Fergana region is one of the five petroleum bearing regions of the Republic of Uzbekistan with proven industrial productivity in the stratigraphic range from Paleozoic to Neogene, including.
Abdullaev G.S. +2 more
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REE-Nb MINERALIZATION IN TRACHYTES AND RHYOLITES OF THE KHULAM VOLCANO-PLUTONIC COMPLEX, NORTH CAUCASUS [PDF]
Минералогия, 2021 The paper presents the first data on the composition of REE and Nb mineralization in the Middle Jurassic moderately alkaline felsic and moderately acid rocks of the Khulam volcano-plutonic complex at the territory of Kabardino-Balkaria, central part of ...
E.N. Kaigorodova +3 more
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Geofluids, 2021 Fine-grained mixed rocks in saline lacustrine basins are important targets for shale oil exploration. However, the controls on shale oil accumulation are complex due to the multi-source mixed deposition.
Chenjia Zhang +5 more
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Geochemical research of asphaltite formation in the Orenburg region [PDF]
E3S Web of Conferences, 2019 The results of the studies of the physicochemical properties and genesis of asphaltites from the deposits of the Orenburg region are considered. Based on the data of a study on the distribution of hydrocarbon biomarkers (n-alkanes, isoprenanes, steranes,
Zakharchenko Maria +2 more
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