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, 2019
The compositions of mineral inclusions from a representative collection (more than 140 samples) of diamonds from the placer deposits in the Ural Mountains were studied to examine their compositional diversity.
N. Sobolev +8 more
semanticscholar +1 more source
The compositions of mineral inclusions from a representative collection (more than 140 samples) of diamonds from the placer deposits in the Ural Mountains were studied to examine their compositional diversity.
N. Sobolev +8 more
semanticscholar +1 more source
Nodular monazite from placers in the Kular Ridge (Arctic Siberia, Russia): composition and age
Russian Geology and Geophysics, 2018Nodular monazite occurs in metamorphic rocks worldwide and has zonal REE patterns. This paper focuses on the composition of nodular monazite hosted by Permian black shales of the Kular Ridge in the Kular–Nera terrane.
E. Lazareva +4 more
semanticscholar +1 more source
Journal of African Earth Sciences, 2018
We studied an excellently exposed section of the slightly metamorphic siliciclastic Amdeh Formation. The section is near the base of the Amdeh Member 4 (Am4). Am4 is of Early to Mid-Ordovician age and 1677 m thick.
F. Mattern +2 more
semanticscholar +1 more source
We studied an excellently exposed section of the slightly metamorphic siliciclastic Amdeh Formation. The section is near the base of the Amdeh Member 4 (Am4). Am4 is of Early to Mid-Ordovician age and 1677 m thick.
F. Mattern +2 more
semanticscholar +1 more source
Impact diamonds from meteorite craters and Neogene placers in Ukraine
Mineralogy and Petrology, 2022V. Kvasnytsya, R. Wirth
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The Mineral Composition of Rare-Metal Placers of the Lovozero Massif
Geology of Ore Deposits, 2022A. Lalomov, A. Grigorieva, V. Zaitsev
semanticscholar +1 more source
1991
Abstract Concentrations of dense resistate minerals in detrital deposits have been mined since the earliest days of human culture. Today they continue to supply considerable portions of the world's needs for some materials. Half or more of our gold, titanium minerals, gem diamond, zircon, and thorium comes from placers, and a ...
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Abstract Concentrations of dense resistate minerals in detrital deposits have been mined since the earliest days of human culture. Today they continue to supply considerable portions of the world's needs for some materials. Half or more of our gold, titanium minerals, gem diamond, zircon, and thorium comes from placers, and a ...
openaire +1 more source
Loparite in placers of the Lovozero placer cluster on the example of the Sergevan site
Геология рудных месторожденийLoparite is the main placer-forming mineral in placers located along the periphery of the Lovozero alkaline massif. The article presents new materials for the study of loparite from samples taken during field work at the Sergevan site of the Revda placer, located near the northern frame of the massif.
A. V. Grigorieva +4 more
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