Zobrazeno 1 - 10
of 11
pro vyhledávání: '"A. M. Asavin"'
Publikováno v:
Geochemistry International. 58:1199-1207
The first data on the isotopic composition and elemental ratios of nitrogen, carbon, and noble gases in samples from the early stages of the formation of the Guli Complex (Maimecha-Kotui igneous province, Polar Siberia), obtained using the method of
Publikováno v:
Геохимия. 64:1111-1132
A first complex investigation of mineral forms of Au and Ag and distribution of noble metals in sulfide-containing phoscorites and carbonatites, their magnetite and sulfide concentrates of alkaline ultrabasic massif Guli (Polar Siberia) was made by n
Publikováno v:
Geochemistry International. 57:1125-1146
We report the first combined investigation (neutron activation, X-ray fluorescence, and electron microprobe analysis) of mineral forms of Au and Ag and noble metal distribution in the sulfide-bearing phoscorites and carbonatites of the Guli alkaline
Autor:
Alexander Dolgal, Natalia Svirskaya, Anton Latyshev, Yana V. Bychkova, Alexey M. Asavin, Alexander Makariev, Nadezhda Krivolutskaya, Anton Yakushev, Bronislav Gongalsky, Elena Makarieva
Publikováno v:
Minerals, Vol 9, Iss 1, p 66 (2019)
Minerals
Volume 9
Issue 1
Minerals
Volume 9
Issue 1
The unique and very large PGE⁻Cu⁻Ni Noril’sk deposits are located within the Siberian trap province, posing a number of questions about the relationship between the ore-forming process and the magmatism that produced the traps. A successful ans
Autor:
Alexey M. Asavin, Natalia N. Ukhova, Victor M. Chubarov, Galina V. Pashkova, A. L. Finkelshtein, Alexei V. Ivanov, Svetlana V. Panteeva
The determination of the chemical composition of meimechites – which are unique and rarely occurring ultra-high MgO igneous rocks – can be complicated due to their porphyric structure, the presence of acid-insoluble minerals, and wide variation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e42f6d8fd791c47660b09fd0cdf469a3
Publikováno v:
Geochemistry International. 53:19-38
Variations in the contents of Fe and Mn and a number of trace elements (Co, Ni, Cu, Zn, As, Rb, Sr, Y, Zr, Pb, Th, U, Te, Ba, La, Ce, Nb, and Mo) were simultaneously measured in microlayers in samples of cobalt-rich ferromanganese crusts from the sur
Publikováno v:
Geochemistry International. 48:655-663
In order to elucidate possible processes leading to platinum accumulation in ferromanganese deposits, we analyzed published data on the interaction of dissolved platinum species in different valence states with iron and manganese oxyhydroxides under
Publikováno v:
Geochemistry International. 48:423-445
Samples of ferromanganese crusts dredged from Ita-MaiTai guyot (Magellan seamounts, Pacific Ocean) were studied. They are made up of a complete stratigraphic section of different-age layers, including unique oldest relict layers in some samples. The
Autor:
A. M. Asavin, L. N. Kogarko
Publikováno v:
Geochemistry International. 47:847-856
Statistical study of volcanic rocks from oceanic islands and seamounts in the Atlantic Ocean based on approximately 6000 analyses (data from the authors’ databank) makes it possible to recognize rocks close to the parental melts (approximately 2000
Autor:
A. M. Asavin, L. N. Kogarko
Publikováno v:
Geochemistry International. 45:841-856
In the framework of the GIS project on the geochemistry of Atlantic intraplate magmatism, primary high-magnesian melts were identified there and subdivided into five types: foidites, picrites, basanite-nephelinites, alkaline olivine basalts, and thol