Physicochemical peculiarities of absorbed oil in core samples of gas condensate deposit     

N. N. Mikhailov  O. M. Ermilov  L. S. Sechina 《Doklady Earth Sciences》2016,466(1):24-27

The problem of the composition of absorption hydrocarbons and liquid condensate arises in the study of gas condensate reservoirs. From the examples of the gas condensate part of the Karachaganak, Astrakhan, and Yamburg deposits, it is shown that absorption hydrocarbons (absorption oil) contain polar components with S and O atoms in molecules. The differences in the physicochemical properties of absorbed oil and precipitated liquid condensate are revealed, as are the regularities in the composition and properties of the absorbed oil and condensate. The criteria for division of absorption oil and liquid condensate are given.  相似文献   

Intraday variability of three flat-spectrum radio sources     

A. G. Gorshkov  A. V. Ipatov  I. A. Ipatova  V. K. Konnikova  V. V. Mardyshkin  M. A. Kharinov  A. G. Mikhailov 《Astronomy Reports》2009,53(5):389-400

Searches for intraday variability in the flat-spectrum radio sources J0527+0331, J0721+0406, and J1728+0427 have been carried out at 3.5 cm using the 32-m radio telescope of the Zelenchuk Observatory of the Kvazar-KVO complex of the Institute of Applied Astronomy of the Russian Academy of Sciences (located near the Zelenchuk Village, Karachaevo-Cherkesskaya Republic). Intraday variabiility with characteristic time scales from one to five hours was detected in all three sources.  相似文献   

Investigation of the radio emission from active galactic nuclei: Determining the spin of a supermassive black hole     

A. V. Ipatov  M. A. Kharinov  V. V. Mardyshkin  A. G. Mikhailov  Yu. N. Gnedin  M. Yu. Piotrovich  A. A. Evstigneev  A. A. Dyakov  R. Yu. Sergeev 《Astronomy Letters》2014,40(4):161-170

The results of radio observations for ten kinetically dominated quasars are presented. The observations have been performed at 3.5 cm with the RTF-32 radio telescopes at the Zelenchukskaya and Badary observatories of the Institute of Applied Astronomy of the Russian Academy of Sciences. The kinetic power of the relativistic jets and the spins of the supermassive black holes in these objects have been determined from radio luminosity measurements. The rotation of the black hole in these objects is shown to be retrograde with respect to the Keplerian rotation in the accretion disk in the case of an approximate equality between the magnetic and gas pressures near the black hole event horizon.  相似文献   

Optical spectra and redshifts of radio sources from the Zelenchuk survey     

V. R. Amirkhanyan  V. L. Afanas'ev  S. N. Dodonov  A. V. Moiseev  V. P. Mikhailov 《Astronomy Letters》2004,30(12):834-842

We performed spectroscopic observations of 22 radio sources from the Zelenchuk survey (Sternberg Astronomical Institute) using the 6-m and 1-m Special Astrophysical Observatory telescopes. For 18 objects, we determined the redshifts. Ten, seven, and one of these objects were identified with quasars, elliptical galaxies, and a Seyfert galaxy, respectively. Four radio sources have a continuum spectrum, and three of them are BL Lac objects. We failed to classify one object.  相似文献   

Initiation of Rock Fracture by Fluids of Different Viscosities     

Kartseva  T. I.  Smirnov  V. B.  Patonin  A. V.  Sergeev  D. S.  Shikhova  N. M.  Ponomarev  A. V.  Stroganova  S. M.  Mikhailov  V. O. 《Izvestiya Physics of the Solid Earth》2022,58(4):576-590

Izvestiya, Physics of the Solid Earth - Abstract—The acoustic emission (AE) patterns observed in laboratory conditions at the initiation of fracture in rock samples by fluids of different...  相似文献   

Seasonal Variations in the b-Value of the Reservoir-Triggered Seismicity in the Koyna–Warna Region,Western India     

Smirnov  V. B.  Potanina  M. G.  Kartseva  T. I.  Ponomarev  A. V.  Patonin  A. V.  Mikhailov  V. O.  Sergeev  D. S. 《Izvestiya Physics of the Solid Earth》2022,58(3):364-378

Izvestiya, Physics of the Solid Earth - Abstract—The analysis of the local earthquake catalog revealed fine features in the behavior of seasonal components of induced seismicity in the...  相似文献   

Analytical Models of the Physical Fields of the Earth in Regional Version with Ellipticity     

Stepanova  I. E.  Shchepetilov  A. V.  Mikhailov  P. S. 《Izvestiya Physics of the Solid Earth》2022,58(3):406-419

Izvestiya, Physics of the Solid Earth - Abstract—The regional version of the method of linear integral representations is used to interpret the data on the anomalous physical fields of the...  相似文献   

Structure and metamorphism of the Antarctic Shield     

E. N. Kamenev  V. A. Maslov  V. S. Semenov  R. G. Kurinin  V. M. Mikhailov  N. L. Alekseev  I. A. Kamenev  S. V. Semenov 《Geotectonics》2013,47(2):115-130

The information on the composition, structure, P-T conditions of metamorphic facies, evolution, and time of the metamorphic events in the largest Precambrian tectonic provinces of the Antarctic Crystalline Shield gained over more than a half-century is summarized in this paper. The joining up of the ortho- and paracrystalline rocks into complexes and groups according to their geographic position, composition, age, and the character of their metamorphism allowed us to consider the main features of the structure and evolution of the provinces including (1) the near-latitudinal polycyclic Late Precambrian-Early Paleozoic Wegener-Mawson Mobile Belt, extended for more than 4000 km, which started to evolve in the Mesoproterozoic and stabilized only at the end of Cambrian; (2) the Early Precambrian relict crystalline protocratonic blocks adjoining this mobile belt; their history is traced from the Eoarchean; and (3) the near-latitudinal Late Precambrian-Early Paleozoic aulacogen in the southern protocratonic block. The P-T conditions of the metamorphism from the pyroxene-granulite subfacies in the protocratonic blocks to the greenschist facies in aulacogen, as well as the age of the magmatic and metamorphic events in all the tectonic provinces of the shield, are characterized. This made it possible to consider the metamorphic history and conditions of the continental crust’s formation in Antarctica, where the oldest crystalline rocks are dated to the Eoarchean (4060–3850 Ma) and the youngest rocks are ～500 Ma old.  相似文献   

Smectite-bearing clays of the Middle Eocene Kievskaya Formation in the Russian Plate and their genesis     

S. O. Zorina  N. I. Afanas’eva  V. A. Grevtsev  N. I. Naumkina  A. A. Mikhailov 《Lithology and Mineral Resources》2012,47(2):129-137

The component composition and specific features of the structure of smectite-bearing clays in the Middle Eocene Kievskaya Formation of the Russian Plate were studied by the scanning electron microscopic, X-ray phase analysis, and complete chemical analysis methods. The clays are characterized by metastable (unstable) state of material expressed as abundance of the semidissolved clasts of felsic volcanic ashes and radiolarian skeletons, as well as colloidal segregations of siliceous, aluminosiliceous (Al-Si) and ferroaluminosiliceous (Fe-Al-Si) gel-type materials and newly formed smectite. Three stages of the diagenetic alteration of Middle Eocene dacite ashes are identified. Mechanism of the further transformation of rocks into smectite clays with siliceous nodules is proposed. The viewpoint suggesting the volcanosedimentary origin of clays of the Kievskaya Formation is confirmed. Sources of the pyroclastic material (suppliers of material for clays) in the Kievskaya Formation could be related to active explosions in the Caucasian volcanic arc in the Middle Eocene.  相似文献   

Hydrological and morphological processes at the Zhujiang River mouth area, China   总被引：1，自引：0，他引：1  

V. N. Mikhailov  M. V. Mikhailova  V. N. Korotaev 《Water Resources》2006,33(3):237-248

Hydrological and morphological processes in the Zhujiang River (Pearl River) mouth area of China are discussed. The hydrological regime of the Xijiang River, which is the largest river of South China and the main source of water inflow into the Zhujiang mouth area, is described. The basic features of the hydrological regime of the delta and the near-shore zone of the Zhujiang River mouth are characterized, much attention being given to the role of tides and mixing of river and sea water in the hydrological regime. Special emphasis is placed on morphodynamic processes at the mouth area and the history of the Zhujiang Delta evolution.  相似文献