Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Lithology, organic geochemistry, and petroleum potential of the northern areas of the Kureika syneclise. / Varaksina, I. V.; Timoshina, I. D.; Kontorovich, A. E. и др.
в: Russian Geology and Geophysics, Том 58, № 3-4, 01.04.2017, стр. 467-478.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Lithology, organic geochemistry, and petroleum potential of the northern areas of the Kureika syneclise
AU - Varaksina, I. V.
AU - Timoshina, I. D.
AU - Kontorovich, A. E.
AU - Tumashov, I. V.
PY - 2017/4/1
Y1 - 2017/4/1
N2 - We present results of lithological and geochemical studies of Paleozoic deposits stripped by drilling within the Ledyanskaya area in the north of the Tunguska syneclise. The studied section has a terrigenous sulfate-carbonate composition and is complicated by trap intrusions. We have established that the Ordovician-Devonian sedimentation proceeded within an epicontinental basin, with its depth varying from supralittoral to lower sublittoral zones. In the Carboniferous and Permian, coastal-continental sedimentation was predominant; in the Late Permian it was accompanied by volcanic activity. Analysis of the poroperm properties of rocks has distinguished three potential oil reservoirs: Silurian reef carbonate deposits and Ordovician and Carboniferous sand horizons. The Lower Silurian argillaceous-carbonate rocks and Devonian carbonate-sulfate-clay members, halite beds, dolerite bodies, and tuffaceous rocks are probably confining beds of these reservoirs. Geochemical study of organic matter has shown several possible sources of hydrocarbons: Upper Proterozoic deposits, Lower and Middle Cambrian Kuonamka complex, Middle Devonian Yukta Formation, and Upper Paleozoic coal-bearing deposits.
AB - We present results of lithological and geochemical studies of Paleozoic deposits stripped by drilling within the Ledyanskaya area in the north of the Tunguska syneclise. The studied section has a terrigenous sulfate-carbonate composition and is complicated by trap intrusions. We have established that the Ordovician-Devonian sedimentation proceeded within an epicontinental basin, with its depth varying from supralittoral to lower sublittoral zones. In the Carboniferous and Permian, coastal-continental sedimentation was predominant; in the Late Permian it was accompanied by volcanic activity. Analysis of the poroperm properties of rocks has distinguished three potential oil reservoirs: Silurian reef carbonate deposits and Ordovician and Carboniferous sand horizons. The Lower Silurian argillaceous-carbonate rocks and Devonian carbonate-sulfate-clay members, halite beds, dolerite bodies, and tuffaceous rocks are probably confining beds of these reservoirs. Geochemical study of organic matter has shown several possible sources of hydrocarbons: Upper Proterozoic deposits, Lower and Middle Cambrian Kuonamka complex, Middle Devonian Yukta Formation, and Upper Paleozoic coal-bearing deposits.
KW - Ledyanaya dome
KW - lithology
KW - organic geochemistry
KW - Paleozoic deposits
KW - Tunguska syneclise
UR - http://www.scopus.com/inward/record.url?scp=85018466571&partnerID=8YFLogxK
U2 - 10.1016/j.rgg.2016.09.023
DO - 10.1016/j.rgg.2016.09.023
M3 - Article
AN - SCOPUS:85018466571
VL - 58
SP - 467
EP - 478
JO - Russian Geology and Geophysics
JF - Russian Geology and Geophysics
SN - 1068-7971
IS - 3-4
ER -
ID: 10035807