Zobrazeno 1 - 10
of 57
pro vyhledávání: '"M. T. Krupenin"'
Autor:
M. T. Krupenin
Publikováno v:
Vestnik Permskogo Universiteta: Seriâ Geologiâ, Vol 17, Iss 4, Pp 342-358 (2018)
The presence of pre-existing evaporites in the carbonate unit is considered on example of the Lower Riphean Satka Suite. It is proved by the extensive development of the collapse breccia in the Karagay member of the Upper Satka subsuite. The differen
Externí odkaz:
https://doaj.org/article/4a4a869cc94b4a938d0dbb9b3fef9537
Publikováno v:
Vestnik Permskogo Universiteta: Seriâ Geologiâ, Vol 16, Iss 3, Pp 216-231 (2017)
Quartz reefs from the gold-sulfide-quartz deposit Gorny Priisk and gold-quartz sulfide bearing ore occurrences Ulyuk-Bar and Vostochno-Aktashskoe have the similar temperatures of homogenization of primary fluid inclusions (228-382 ° C) and salt comp
Externí odkaz:
https://doaj.org/article/ad59c0b8cf1646f3ba6c65cd5320a7b3
Autor:
M. T. Krupenin
Publikováno v:
Vestnik Permskogo Universiteta: Seriâ Geologiâ, Vol 16, Iss 2, Pp 167-178 (2017)
The data obtained with the quantitative microprobe ankerite–siderite composition analysis of seven samples from the different parts of Bakalskoe field showed that the wallrock ankerites in the western and central parts of the ore field differ in av
Externí odkaz:
https://doaj.org/article/4343c46021324051af2f1372bdf98d50
Publikováno v:
Литосфера, Vol 0, Iss 5, Pp 58-80 (2016)
The geochemistry and REE of magnesite and host carbonate rocks of two Lower Riphean deposits of the South Urals province (Satka and Ismakaevo ore fields) confirm the metasomatic nature of the magnesite. The magnesites of both deposits are enriched in
Externí odkaz:
https://doaj.org/article/ec6b45f30d074f35ba949ff2c89738bf
Autor:
M. T. Krupenin, A. A. Garaeva
Publikováno v:
Литосфера, Vol 0, Iss 2, Pp 133-139 (2015)
Bittern brine nature of fluid inclusions in magnesite of Ismakaevo deposits are confirmed not only by data of Cl-Br ion systematics, but also by methods of microthermometry. The mean value of salinity of inclusions in magnesite is 23.6 wt % NaCl eqiv
Externí odkaz:
https://doaj.org/article/f596b647cf53443390db8f16b7230fe5
Publikováno v:
Lithology and Mineral Resources. 58:95-121
Publikováno v:
Geology of Ore Deposits. 63:324-340
Abstract— Based on Sm–Nd data, a crustal source of iron-ore fluid was substantiated and the probability of age estimation for hydrothermal–metasomatic siderite of the Bakal Group, Southern Urals, was shown for the first time. The εNd (Т) valu
Publikováno v:
Geochemistry International. 59:522-527
The Uralian foredeep is a classical marginal structure located on the foreland of the Late Paleozoic Uralian Orogen. It is subdivided into several depressions/sedimentation basins. This paper presents the analysis of the REE and Th distribution in th
Autor:
M. T. Krupenin, T. Ya. Gulyaeva, D. A. Zamyatin, A. A. Garayeva, S. V. Michurin, A. A. Sharipova
Publikováno v:
Литология и полезные ископаемые. :262-277
Fe–Mg carbonate metasomatites in the limestones of the Suran suite of the Lower Riphean in the Avzyansky ore district of the Bashkir meganticlinorium are represented by large deposits of Fe-magnesite (Ismakaevo deposit) and breinerite stocks (Bogry
Autor:
T. Ya. Gulyaeva, S. V. Michurin, M. T. Krupenin, A. A. Sharipova, A. A. Garaeva, D. A. Zamyatina
Publikováno v:
Lithology and Mineral Resources. 54:248-261
Ferromagnesian carbonate metasomatites in limestones of the Lower Riphean Suran Formation in the Avzyan ore region (Bashkir meganticlinorium) are represented by large Fe-magnesite deposits (e.g., Ismakaevo deposit) and breunnerite stocks (Bogryashka