Zobrazeno 1 - 10
of 21
pro vyhledávání: '"R. M. Mineeva"'
Publikováno v:
Doklady Earth Sciences. 468:500-502
Using the method of EPR spectroscopy, it is shown that the N1 nitrogen centers (N–C–N+) are unevenly distributed over possible sites in natural brown crystals of plastically deformed diamonds. The influence of deformational dissymmetrization of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab1a98c760bf3c448a20605fcc3693ab
https://doi.org/10.1134/s1028334x16050135
https://doi.org/10.1134/s1028334x16050135
Autor:
V. P. Zhikhareva, Andrey A. Shiryaev, S. V. Titkov, N. N. Zudina, I. D. Ryabchikov, A. M. Sergeev, R. M. Mineeva, A. V. Speransky
Publikováno v:
Physics and Chemistry of Minerals. 42:131-141
A natural orange diamond crystal from Siberian kimberlite has been studied using complementary spectroscopic techniques. The IR-spectra of the crystal revealed presence of low concentration of nitrogen A, B and C centers. In addition to these common
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c4e527648fef73062559b0bb8753650
https://doi.org/10.1007/s00269-014-0705-x
https://doi.org/10.1007/s00269-014-0705-x
Publikováno v:
Doklady Earth Sciences. 448:243-247
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::11e94ed02480e07dd16afed8746d7a4d
https://doi.org/10.1134/s1028334x13020190
https://doi.org/10.1134/s1028334x13020190
Publikováno v:
Doklady Earth Sciences. 439:990-993
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0a0389c8da3fa6831b87b10a9e00ee5b
https://doi.org/10.1134/s1028334x11070129
https://doi.org/10.1134/s1028334x11070129
Autor:
N. S. Bortnikov, A. D. Savko, A. G. Berketa, V. Krainov, V. M. Novikov, R. M. Mineeva, A. V. Speranskii
Publikováno v:
Doklady Earth Sciences. 433:927-930
During the Aptian, these deposits containing sec� ondary kaolin composed an elevated erosion–denu� dation plain with quite rugged relief and a series of river valleys stretching from the south to the north. Erosion of the Mamon Series resulted
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc81ed95817abe6fcfa515afe395292a
https://doi.org/10.1134/s1028334x10070184
https://doi.org/10.1134/s1028334x10070184
Publikováno v:
Geology of Ore Deposits. 51:233-242
Structural defects formed as a result of plastic deformation in natural diamond crystals have been studied by EPR spectroscopy. The spectra of brown, pink-brown, black-brown, pink-purple, and gray plastically deformed diamonds of type Ia from deposit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::861a9d48de49d0c2119ffcd5a0b514ac
https://doi.org/10.1134/s1075701509030052
https://doi.org/10.1134/s1075701509030052
Publikováno v:
Doklady Earth Sciences. 423:1488-1491
Kaolinite is an economically important clay mineral. It is proposed to use electron paramagnetic resonance (EPR) in order to estimate the quality of kaolin concentrate while studying deposits [1]. This is related to the fact that most EPR signals of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc5399c5e07a04b4278a7842139dc8b
https://doi.org/10.1134/s1028334x08090377
https://doi.org/10.1134/s1028334x08090377
Publikováno v:
Physics and Chemistry of Minerals. 34:53-58
The EPR-study showed that natural purple diamonds from kimberlites of Eastern Siberia (Russia) contain well known P1, P2 (in some samples), W7, and N2 centers. The EPR spectra of these centers were typical of plastically deformed diamond single cryst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fc4c282d212f02a44cb073f27f28af9
https://doi.org/10.1007/s00269-006-0127-5
https://doi.org/10.1007/s00269-006-0127-5
Autor:
A. V. Speransky, R. M. Mineeva
Publikováno v:
Applied Magnetic Resonance. 28:355-364
Two new di-nitrogen centers, which were labeled M2 and M3, were found together with known W7 and N4 centers in an unusual reddish-brown natural diamond. The following magnetic hyperfine interaction parameters (expressed in MHz) were determined for th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0af0e67e5f6d08cc2ce9f78494aa46a3
https://doi.org/10.1007/bf03166767
https://doi.org/10.1007/bf03166767
Publikováno v:
Physics and Chemistry of Minerals. 17:24-26
The electron spin-lattice relaxation time (T1e) of the paramagnetic radical-ion center SO3−in a naturally occurring single crystal of barite was studied in the temperature range 10–300 K by the pulse saturation recovery technique. The changes in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c55473a10fa2ae516d3c702816bfec14
https://doi.org/10.1007/bf00209221
https://doi.org/10.1007/bf00209221