On the metallogenic role of craton terrains in the marginal sea lithospherePleiades Publishing Ltd - Tập 430 - Trang 163-167 - 2010
A. A. Sidorov, A. V. Volkov, A. D. Chekhov, V. Yu. Alexeev
The metallogenic efficiency of the marginal sea lithosphere of Northeastern Asia is associated mainly with the ore formation variety of the remaining cratons and microcratons that defined the structural peculiarity of the region; these are setoffs of the Precambrian basement, brachyform, anticline highs, and genesis of rifts within TMA periods. These formations allowed us to explain the reasons fo...... hiện toàn bộ
Palladogermanide PdGe2 from Sulfidized Anorthosite of the Yoko-Dovyren Intrusion: First Finding in RussiaPleiades Publishing Ltd - Tập 485 - Trang 458-460 - 2019
E. M. Spiridonov, D. A. Orsoev, A. A. Ariskin, E. V. Kislov, N. N. Korotaeva, G. S. Nikolaev, V. O. Yapaskurt
The Yoko-Dovyren ultramafic–mafic layered intrusion includes the Baikal deposit of Cu–Ni sulfide ores with Pt–Pd mineralization in the bottom part, and “horizons” and pockets of low-sulfide ores with Pt–Pd mineralization at the upper levels of the section. The highest concentration of Pd, Pt, Au, Ag, Hg, and Cd, as well as the widest variability in the noble-metal minerals, is typical of the vein-...... hiện toàn bộ
Events at the turn of the Eocene and Oligocene in the Central Eurasia Region (middle latitudes)Pleiades Publishing Ltd - Tập 473 - Trang 273-276 - 2017
M. A. Akhmetiev, Yu. O. Gavrilov, N. I. Zaporozhets
The Eocene and Oligocene transition sections (Priabonian–Rupelian) of the Aral–Turgai, West Siberian, Volga–Don, and Crimea–Caucasus regions have been studied in detail [1], and the global biospheric crisis events have been estimated at the turn of the Eocene and Oligocene. In spite of the idea of the gradual regression in the Priabonian with drainage of the inner sea basins, it has been establish...... hiện toàn bộ
Н2О as a Possible Initiator of Surface Graphitization of Impact DiamondsPleiades Publishing Ltd - Tập 498 - Trang 388-391 - 2021
V. M. Sonin, I. A Gryaznov, A. I. Chepurov, N. P. Pokhilenko
The experimental results on etching of diamond crystals with octahedral and cubooctahedral habits at a temperature of 1000°С in wet argon are presented. It is found that at a low partial pressure, Н2О can act as an initiator (catalyst) of the surface graphitization of diamonds at the Р–Т-parameters of thermodynamic stability of graphite. The limiting stage of the diamond etching process in the pre...... hiện toàn bộ
A new type of Cambrian section at the base of the pre-mesozoic complex of the West Siberian petroleum megabasin (based on Vostok-1 stratigraphic well data, Northern Tomsk Region)Pleiades Publishing Ltd - - 2009
А. Э. Конторович, Vladimir Kontorovich, А.И. Варламов, A G Klets, А. С. Ефимов, I. V. Korovnikov, S.V. Saraev, Н В Сенников, Yu. F. Filippov, Ирина Валерьевна Вараксина, А. В. Тимохин
Chukchi Sea Ice Conditions for the Last Few Centuries: Reconstruction from Sedimentation RecordsPleiades Publishing Ltd - Tập 480 - Trang 767-772 - 2018
A. S. Astakhov, V. A. Akulichev, A. V. Dar’in, I. A. Kalugin, Yanguang Liu, V. V. Babich, A. A. Bosin, E. G. Vologina, V. V. Plotnikov
For the first time, the reconstruction of variations in the duration over several hundred years was conducted on the basis of models developed by comparing hydrometeorological observations and detailed scanning of the chemical composition of bottom sediments accumulated during the corresponding period. The gauge models for the reconstruction of air temperature and ice cover of the water area for t...... hiện toàn bộ