Results 11 to 20 of about 19,614 (220)
Internet Archaeology, 2000 The potential of applying petrographic analysis to ceramics was first fully realised by Anna Shepard in her seminal studies on prehistoric pottery from Mesoamerica and the Southwest United States in the 1930s (Shepard 1956).
Louise Joyner
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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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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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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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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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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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Petrological features of picrobasaltic melts on Lanzarote, Canary Islands [PDF]
E3S Web of Conferences, 2021 The paper discusses issues related to the petrology of picrobasaltic melts forming lava flows on Lanzarote, Canary Islands. During ascientific and educational expedition on the aforementioned island, lava flows of picro basalt of the third phase of the ...
Canhimbue L.S. +2 more
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