Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Anna Doroshkevich"'
Autor:
Ilya Prokopyev, Anna Doroshkevich, Anastasiya Starikova, Semen Kovalev, Yazgul Nugumanova, Andrey Izokh
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-11 (2023)
Abstract The Chadobets alkaline-carbonatite complex (Siberian craton) is a natural laboratory for all varieties of ultramafic lamprophyres, including damtjernites formed by fluid-explosion mechanisms, which contain a large number of pelletal lapilli.
Externí odkaz:
https://doaj.org/article/44fe3796efe146d0a7ad7e1be01ac7ee
Publikováno v:
Minerals, Vol 13, Iss 4, p 573 (2023)
The carbonatite complexes of the Central Asian carbonatite province comprise the Siberian carbonatites of the Western Transbaikalia and the Central Tuva regions, as well as those from the Mushugai-Khudag complex in Southern Mongolia. They are confine
Externí odkaz:
https://doaj.org/article/244e1b8765d141cb9b9dfb3040edd64d
Publikováno v:
Minerals, Vol 13, Iss 4, p 464 (2023)
Experimental studies were conducted to identify the physical and chemical features of gold’s behaviour in hydrothermal processes linked to ore formation and involving CO2 in oxidized deposits. With the aid of the autoclave method, in a temperature
Externí odkaz:
https://doaj.org/article/dcff61374b5f4f908e3baff03c38c6ae
Publikováno v:
Geoscience Frontiers, Vol 11, Iss 4, Pp 1289-1303 (2020)
This paper presents the results of geochronological (40Ar-39Ar, U–Pb SHRIMP II), petrological and geochemical studies of the Late Paleozoic complexes of alkaline rocks (Zimovechinsky, Tuchinsky and Koma) located within the Vitim Plateau (the wester
Externí odkaz:
https://doaj.org/article/0f30383aa9f248a690191b73fe4620da
Autor:
Anastasiya Starikova, Ilya Prokopyev, Anna Doroshkevich, Alexey Ragozin, Vasily Chervyakovsky
Publikováno v:
Minerals, Vol 11, Iss 4, p 408 (2021)
Olivine from the deep mantle-derived rocks, such as ultramafic lamprophyres, carries important information about the composition of the mantle source, the processes of mantle metasomatism, the origin of specific silicate-carbonate melts, as well as t
Externí odkaz:
https://doaj.org/article/33852d0231404c32a5b928b44403814d
Publikováno v:
Minerals, Vol 11, Iss 5, p 456 (2021)
Ultramafic lamprophyres (UMLs) are mantle rocks that provide important information about the composition of specific carbonate–silicate alkaline melts in the mantle as well as the processes contributing to their origin. Minerals of the spinel group
Externí odkaz:
https://doaj.org/article/0cc76b4c9a6145da85d0998d97009616
Publikováno v:
Minerals, Vol 11, Iss 4, p 355 (2021)
The main mass of the Sevathur carbonatite complex (Tamil Nadu, India) consists of dolomite carbonatite with a small number of ankerite carbonatite dikes. Calcite carbonatite occurs in a very minor amount as thin veins within the dolomite carbonatite.
Externí odkaz:
https://doaj.org/article/2bfae69299e649b290846dd979e9f79f
Autor:
Ilya Prokopyev, Anastasiya Starikova, Anna Doroshkevich, Yazgul Nugumanova, Vladislav Potapov
Publikováno v:
Minerals, Vol 10, Iss 5, p 419 (2020)
The mineral composition and melt inclusions of ultramafic lamprophyres of the Terina complex were investigated. The rocks identified were aillikites, mela-aillikites, and damtjernites, and they were originally composed of olivine macrocrysts and phen
Externí odkaz:
https://doaj.org/article/c731eef67ac24cf29dee0f280fee217e
Publikováno v:
Minerals, Vol 10, Iss 5, p 405 (2020)
The Vuoriyarvi Devonian alkaline–ultramafic complex (northwest Russia) contains magnesiocarbonatites with rare earth mineralization localized in the Petyayan-Vara area. High concentrations of rare earth elements are found in two types of these rock
Externí odkaz:
https://doaj.org/article/a9580f37c3a04e218b3ab11024cfff6d
Autor:
Anna Doroshkevich, Ivan Izbrodin
Publikováno v:
Geosfernye issledovaniya. :6-26