Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Elena V, Kovalchuk"'
Autor:
Olga A. Andreeva, Elena Dubinina, Irina A. Andreeva, Vladimir V. Yarmolyuk, Andrey Bychkov, Anastassia Borisova, Jianqing Ji, Xin Zhou, Elena V. Kovalchuk, Sergey Y. Borisovsky, Alexey A. Averin
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
The balance of CO2 during abundant basaltic magma production is an important factor of volcanic hazards and climate. In particular, this can be explored based on CO2-rich mantle-derived magmas or carbonate assimilation by basaltic melts. To reconstru
Externí odkaz:
https://doaj.org/article/89ea3ee23a3f496db9e290456def6f2f
Autor:
Boris R. Tagirov, Maximilian S. Nickolsky, I. V. Vikentyev, Alexander L. Trigub, Dmitriy A. Chareev, Vladimir L. Reukov, Olga N. Filimonova, Kristina O. Kvashnina, Elena V. Kovalchuk
Publikováno v:
Mineralogical Magazine. 85:846-861
Pyrrhotite Fe1–xS is the main sulfide component of platinum-group element (PGE) ores and commonly contains from a few tenths to a few dozen ppm of disseminated Pt. Here we report an X-ray absorption spectroscopy investigation into the state of Pt i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03572421c62c34a6297426930b52c6a9
https://doi.org/10.1180/mgm.2021.76
https://doi.org/10.1180/mgm.2021.76
Autor:
Boris R. Tagirov, Olga N. Filimonova, Alexander L. Trigub, Ilya V. Vikentyev, Elena V. Kovalchuk, Maximilian S. Nickolsky, Andrey A. Shiryaev, Vladimir L. Reukov, Dmitry A. Chareev
Publikováno v:
Geoscience Frontiers. 14:101533
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ecc2dcd0d40b99a83cf16ee195987cf7
https://doi.org/10.1016/j.gsf.2022.101533
https://doi.org/10.1016/j.gsf.2022.101533
Autor:
Dmitriy A. Chareev, Maximilian S. Nickolsky, Elena V. Kovalchuk, Boris R. Tagirov, Alexander L. Trigub, Kristina O. Kvashnina, I. V. Vikentyev, Olga N. Filimonova
Publikováno v:
Economic Geology. 114:1649-1663
Pyrite (FeS2) is a typical container of Pt in ores of magmatic and hydrothermal origin and in some carbonrich ores of sedimentary-diagenetic origin. Knowledge of the state of Pt disseminated in the matrix of pyrite, including local atomic environment
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b12724c7079fb7a714265fa81f7a804b
https://doi.org/10.5382/econgeo.4686
https://doi.org/10.5382/econgeo.4686
Autor:
Dmitriy A. Chareev, I. V. Vikentyev, Elena V. Kovalchuk, M. S. Nikolsky, E. E. Tyukova, N. S. Bortnikov, B. R. Tagirov, S. E. Borisovsky
Publikováno v:
Геология рудных месторождений. 61:62-83
In many types of hydrothermal ore deposits Au occurs in invisible state in most common minerals of the Fe-As-S system. It is supposed that the state of theinvisible Au may beeither non-structural (nano-sized inclusions of metal and its compounds) or
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::224be1c98e671317d3f1e62e1913c70d
https://doi.org/10.31857/s0016-777061562-83
https://doi.org/10.31857/s0016-777061562-83
Autor:
D. A. Chareev, Elena V. Kovalchuk, Tatiana L. Grokhovskaya, František Laufek, Larisa O. Magazina, Victor A. Rassulov, O. V. Karimova, Anna Vymazalová
Publikováno v:
Mineralogical Magazine. 83:837-845
Nipalarsite, Ni8Pd3As4, is a new platinum-group mineral discovered in the sulfide-bearing orthopyroxenite of the Monchetundra layered intrusion, Kola Peninsula, Russia (67°52′22″N, 32°47′60″E). Nipalarsite forms anhedral grains (5–80 µm
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe571c10a9165eba5d1570ba937efb8a
https://doi.org/10.1180/mgm.2019.70
https://doi.org/10.1180/mgm.2019.70
Autor:
Olga Yu. Plotinskaya, Vladimir V. Shilovskikh, Jens Najorka, Elena V. Kovalchuk, John Spratt, Reimar Seltmann
Publikováno v:
Mineralogical Magazine. 83:639-644
Molybdenite from two porphyry copper mineralisation sites within the South Urals was studied by electron microprobe (EMPA), micro x-ray diffraction (μXRD) and electron backscattered diffraction (EBSD) methods. Elevated contents of rhenium (0.2 to 0.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2df0d6b29aa8e2a497bab06d5dce72dc
https://doi.org/10.1180/mgm.2019.49
https://doi.org/10.1180/mgm.2019.49
Autor:
Boris R. Tagirov, Alexander L. Trigub, Olga N. Filimonova, Elena V. Kovalchuk, Sara Lafuerza, Dmitriy A. Chareev, Dmitriy E. Tonkacheev, Ilya V. Chaplygin, Max S. Nickolsky, Kristina O. Kvashnina
Publikováno v:
Mineralogical Magazine. 83:435-451
Sphalerite is the main source of In – a ‘critical’ metal widely used in high-tech electronics. In this mineral the concentration of In is commonly correlated directly with Cu content. Here we use X-ray absorption spectroscopy of synthetic compo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::459ad390ba13d2272233aefd963394aa
https://doi.org/10.1180/mgm.2019.10
https://doi.org/10.1180/mgm.2019.10
Autor:
Valentina Batanova, Simon Cuthbert, Kirill E. Degtyarev, B. V. Ermolaev, Taisia A. Alifirova, Elena V. Kovalchuk, A. V. Pilitsyna, Andrey A. Tretyakov
Publikováno v:
Gondwana Research. 64:11-34
Spinel-bearing ultramafic rocks, metamorphosed in high-pressure conditions, are described from the metamorphic complexes of the western part of the Central Asian Orogenic Belt (CAOB) in the Chu-Yili region in Southern Kazakhstan. They comprise small
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6fbd6f8d9c7c47eed4ffd8b9b43e9f9
https://doi.org/10.1016/j.gr.2018.06.005
https://doi.org/10.1016/j.gr.2018.06.005
Autor:
Olga M. Zhilicheva, A. N. Pertsev, N. S. Bortnikov, Elena V. Kovalchuk, V. Yu. Prokofiev, Olga Ageeva, V. E. Beltenev, L. Ya. Aranovich
Publikováno v:
Doklady Earth Sciences. 480:661-665
New data on local mineral associations and the microheterogeneity of minerals and fluid inclusions in gabbro were obtained for the gabbro–peridotite oceanic core complex with a long-lived detachment fault controlling the hydrothermal activity. It i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ab26c4029148daecbfadc814c8a4068
https://doi.org/10.1134/s1028334x18050288
https://doi.org/10.1134/s1028334x18050288