Results 111 to 120 of about 1,803 (171)

Seismogeological analysis of the pre-Jurassic sediment complexes of the South Kara syneclise in connection with the tectonic zoning of the sedimentary cover

Russian Geology and Geophysics, 2014
Abstract We present new data on the structure of deep horizons of the sedimentary cover of the South Kara syneclise, based on an integrated interpretation of data from modern seismic prospecting and data on the geologic structure of the adjacent folded areas. A network of seismic base profiles reprocessed with up-to-date programs is used
L.A. Daragan-Sushchova, O.V. Petrov, N.N. Sobolev, Yu.I. Daragan-Sushchov   +3 more
openaire   +2 more sources

Epigenetic Alterations of Felsic Volcanites From the Top of the Pre-Jurassic Complex in the Southeastern Part of the West Siberian Plate

Moscow University Geology Bulletin, 2019
A study of secondary alterations of felsic effusives with reservoir properties from the top of the West Siberian pre-Jurassic complex (Tomsk Region) was performed. The lithological, petrographic, and mineralogical features of these rocks indicate their alterations by low-temperature hydrothermal solutions, while the weathering products that are ...
Yu V Rostovtseva
exaly   +2 more sources

Structure and Potential Oil and Gas Reserves of the Pre-Jurassic (Transitional) Complex of the Southeastern Part of West Siberia

Energy Sources Part A Recovery, Utilization, and Environmental Effects, 2001
There are several different theories for the mechanism of development of pre-Jurassic sequences in Western Siberia. Many geologists believe that Hercynian-Caledonian and Bayikalian orogenies of the Paleozoic age affected all pre-Jurassic deposits. Others assume that pre-Jurassic?Paleozoic sediments were formed in the Paleo-Asian ocean that existed in ...
exaly   +2 more sources

Provenance and Depositional Setting of Pre‐Late Jurassic Turbidite Complexes in Patagonia, Chile

New Zealand Journal of Geology, and Geophysics, 2002
Francisco Hervé
exaly   +2 more sources

GEOLOGICAL STRUCTURE OF THE PRE-JURASSIC BASEMENT OF THE CENTRAL PART OF THE KRASNOLENINSKY SWELL IN THE LIGHT OF NEW GEOLOGICAL AND GEOPHYSICAL DATA

GEOLOGY AND MINERAL RESOURCES OF SIBERIA, 2021
The article reviews features of the pre-Jurassic geological structure of the Krasnoleninsky Swell, located on the western edge of the West Siberian petroleum basin.
D. Sidorov, L. Lapina, N. V. Kholmanskikh, D. V. Emelyanov, L. Melnikov, D. Fedorov   +5 more
semanticscholar   +1 more source

Indicators in the Present-Day Surface of West Siberia of Potentially Oil- and Gas-Containing Structures of the Pre-Jurassic Complex

International Geology Review, 1985
N. P. Zapivalov, V. A. Belyayeva
exaly   +2 more sources

Hydrogeochemistry of Pre-Jurassic Aquifers in West Siberia

, 2020
––For the first time in the last 35 years, hydrogeochemical data on pre-Jurassic complexes in West Siberia have been generalized. Groundwater and brines of Cl–Na and Cl–HCO3–Na type with total salinity (TDS) varying from 4 to 330 g/L are found to be ...
D. Novikov, F. Dultsev, A. Chernykh, V. A. Khilko, I. I. Yurchik, A. Sukhorukova   +5 more
semanticscholar   +1 more source

Epigenetic changes of acidic volcanites from the top of the Western Siberia Pre-Jurassic complex

Moscow University Bulletin. Series 4. Geology, 2019
The study of secondary changes of acidic effusives with reservoir properties from the top of the Western Siberia pre-Jurassic complex (Tomsk Region) was produced. Lithological, petrographic and mineralogical features of these rocks indicate their change by low-temperature hydrothermal solutions, while weathering products, which are widely spread at the
A. V. Krasnova, Yu. V. Rostovtseva, A. E. Gavrilov   +2 more
openaire   +1 more source

Subduction complex of pre-Jurassic age, northern Anatolia, Turkey

Geology, 1981
In northern Anatolia a zone of pre-Liassic orogenic deformation is located mainly between the internal Anatolian massifs and the North Anatolian fault. This belt consists of metamorphic rocks in blueschist, greenschist, and amphibolite facies and an ophiolitic, dynamometa-morphic melange.
openaire   +1 more source

APPLICATION OF AVO ANALYSIS FOR HIGHLIGHTING OF COAL LAYER OF EARLY JURASSIC DEPOSITS OF WESTERN SIBERIA IN THE STUDY OF THE WEATHERING CRUST OF THE PRE-JURASSIC COMPLEX

ГЕОФИЗИКА, 2022
В статье рассмотрены подходы AVO-анализа для прогноза угольных пластов в нижнеюрских отложениях. Проведено моделирование AVO-атрибутов на основе реальных данных по нескольким скважинам по псевдолинии 2D. Анализ кроссплотов AVO-атрибутов (интерсепт/градиент) позволил выделить в разрезе AVO-аномалии 4-го класса, которые соответствуют угольным пластам ...
openaire   +1 more source