Distribution of Reserves and Resources of Hydrocarbons by Natural Size in the Junction Zone between Western Siberia and Siberian Platform

2020 ◽  
Author(s):  
E.A. Sidorchuk ◽  
S.A. Dobrynina ◽  
A.A. Suslov
Keyword(s):  
Siberian Platform ◽  
Western Siberia ◽  
Junction Zone ◽  
Natural Size

scholarly journals Hydrocarbon deposits in non-anticlinal traps of the Yamal Peninsula of Western Siberia

Georesursy ◽  
2020 ◽  
Vol 22 (1) ◽  
pp. 39-45
Author(s):  
Vladimir L. Shuster ◽  
Alexander D. Dziublo ◽  
Oleg A. Shnip
Keyword(s):  
Siberian Platform ◽  
Western Siberia ◽  
Yamal Peninsula ◽  
Yenisei Ridge ◽  
Clay Material ◽  
Clastic Material ◽  
Ural Mountains ◽  
The West ◽  
Hydrocarbon Deposits ◽  
The Yamal Peninsula

The article considers various types of non-anticlinal traps of the Yamal Peninsula of Western Siberia. The task is to establish the features of their formation and structure. Gas and gas condensate deposits were allocated in the Akhskian formation of the Neocomian section, associated with wedge-shaped traps (Bovanenkovsky, Kharasaveysky fields). This type of lithologically-shielded traps was formed due to clastic material entering the territory of the Yamal Peninsula from the East Siberian Platform, the Yenisei Ridge (from the east) and the Ural Mountains (from the west). Sand and clay material accumulated along the path of underwater hills, where wedging zones formed. Traps of various types are developed in the Jurassic deposits of the region. Traps of tectonically shielded type are formed in areas of the active influence of discontinuous disturbances on the structure of the section (for example, on the Nurminsky Swell). Lithologically-shielded traps are formed on the slopes of the erosive remnants of the paleorelief in zones of terrigenous horizons wedging. Such traps are also formed in zones of their screening by the surface of the pre-Cretaceous erosion. The considered examples made it possible to establish the confinement of various types of traps to the sediment section and their distribution over the area of ​​the Yamal region.

scholarly journals Tectonic position of the neoproterozoic gabbro-hyperbasite and gabbroid complexes of the Bayannur block of the Songino ledge, Central Asian orogenic belt

2019 ◽  
Vol 27 (2) ◽  
pp. 31-51
Author(s):  
I. K. Kozakov ◽  
D. A. Lykhin ◽  
Ch. Erdenegargal ◽  
E. B. Salnikova ◽  
I. V. Anisimova ◽  
...  
Keyword(s):  
Siberian Platform ◽  
Lower Boundary ◽  
Crystalline Rocks ◽  
Junction Zone ◽  
Thrust Faults ◽  
Tectonic Plate ◽  
Tectonic Plates ◽  
Central Asian ◽  
Tectonic Position ◽  
Age Limit

The Early Caledonian folded region of the southern framing of the Siberian platform between Dzavkhan and Tuva-Mongolian terranes contains blocks of Songino ledge crystalline rocks. In the Bayannur block of the southern part of the Songino ledge, Neoproterozoic (890–780 Ma) gneiss-migmatitic Bayannur and metaterrigenous-volcanogenic Kholbonure complexes are selected. The zone of their junction is traced by thrust structures, which are reflected in all structural and real complexes of the Bayannur block. At the junction zone, tectonic plates are presented. Their peculiarity is the presence of rocks formed before the formation of the gabbro-hyperbasite complex and post-thrust gabbroids and gabbro-diorites. The upper age limit of the interval of the formation of thrust faults is defined by Bayannur pluton granitoids with age of 790 ± 3 Ma and gabbroids and anorthosites of Onzula tectonic plate with ages of 785 ± 3 and 784 ± 3 Ma. The lower boundary of the formation of thrust faults is determined by the age of Bayannur complex ultrametamorphic granitoids (802 ± 6 Ma). Bodies of massive (post-thrust) pegmatoid gabbro and rocks of gabbro-hyperbasite complex with clearly manifested structures associated with the thrusts are recognized in the tectonic plate of the ridge overlooking the area of Mount San Node. These rocks are dated at 782 ± 2 and 806 ± 10 Ma, respectively (ID TIMS). The obtained data indicate that the post-thrust and before-thrust formations can not be parts of a single stratified complex. The latter can be considered as fragments of paleooceanic formations in the accretion structure of the Bayannur block of the Songino ledge.

A Vendian–Cambrian boundary succession from the northwestern margin of the Siberian Platform: stratigraphy, palaeontology, chemostratigraphy and correlation

1998 ◽  
Vol 135 (4) ◽  
pp. 473-494 ◽  
Author(s):  
JULIE K. BARTLEY ◽  
MICHAEL POPE ◽  
ANDREW H. KNOLL ◽  
MIKHAIL A. SEMIKHATOV ◽  
PETER YU. PETROV
Keyword(s):  
Siberian Platform ◽  
Western Siberia ◽  
World Ocean ◽  
Environmental Evolution ◽  
Carbon Isotopic ◽  
Reference Sections ◽  
The World ◽  
Northwestern Margin

Siberia contains several key reference sections for studies of biological and environmental evolution across the Proterozoic–Phanerozoic transition. The Platonovskaya Formation, exposed in the Turukhansk region of western Siberia, is an uppermost Proterozoic to Cambrian succession whose trace and body fossils place broad limits on the age of deposition, but do not permit detailed correlation with boundary successions elsewhere. In contrast, a striking negative carbon isotopic excursion in the lower part of the Platonovskaya Formation permits precise chemostratigraphic correlation with uppermost Yudomian successions in Siberia, and possibly worldwide. In addition to providing a tool for correlation, the isotopic excursion preserved in the Platonovskaya and contemporaneous successions documents a major biogeochemical event, likely involving the world ocean. The excursion coincides with the palaeontological breakpoint between Ediacaran- and Cambrian-style assemblages, suggesting a role for biogeochemical change in evolutionary events near the Proterozoic–Cambrian boundary.

FEATURES OF GEOLOGICAL STRUCTURE AND PETROLEUM OIL POTENTIAL OF VICHULOVSKAYA FORMATION WITHIN VOSTOCHNO-KAMENNYI DEPOSIT (WESTERN SIBERIA)

2018 ◽  
pp. 33-39
Author(s):  
R. R. Gabdullin ◽  
O. N. Biryukova ◽  
R. A. Akhmedov
Keyword(s):  
Western Siberia ◽  
Geological Structure ◽  
Test Results ◽  
Geological Information ◽  
Petroleum Oil

The analysis of geological and geophysical materials in order to study the peculiarities of the geological structure of the Vikulov Formation within the Vodorazdel license area was carried out. The presented factual material makes it possible to characterize the geological structure of the investigated area more informatively and for interpreting of seismic materials. The analysis of geological information (GIS and test results) confirms the approved water–oil contact (WOC) level in the investigated section of the deposit, which makes it possible to recalculate its reserves.

Causes of ecosystem transformations variability in lakes of the european part of Russia and Western Siberia (diatom analysis)

2019 ◽  
pp. 79-82
Author(s):  
Lev V. Razumovsky
Keyword(s):  
Western Siberia ◽  
Graphical Analysis ◽  
European Part ◽  
Analysis Method ◽  
Climatic Region ◽  
Diatom Analysis ◽  
Lake Ecosystems ◽  
Distinctive Features ◽  
European Part Of Russia

On the basis of author's graphical analysis method, the typification of lake ecosystems transformation scenarios depending on the size of lakes was carried out. It was confirmed that the type of transformation depends not only on size of the lake, but also on the landscape and climatic region in which it is located. The distinctive features of lake ecosystems transformation types in the European part of Russia and in Western Siberia were analyzed and compared.

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