Evolution and hydrocarbon provinces of Neogene basins in the West Carpathians
- Univ. of South Carolina, Columbia (United States)
- Geologicky Ustav Dionyza Stura, Bratislava (Czechoslovakia)
The Neogene basins of the West Carpathians are plate-margin, A-subduction zone basins that developed during convergent and escape phases of Alpine deformation. Field studies show that thrusting, strike-slip, and extension created composite basins that were dependent on structural position through time, including piggyback, transtensional, and extensional mechanisms. The Vienna, Danube Lowland, and East Slovakian basins were the major catchment features of Neogene sediments. The Vienna basin is the most mature hydrocarbon-producing province of the West Carpathians, with both oil and gas reserves under exploitation. This multiphase composite-complex basin produces hydrocarbons from Neogene clastics (6 km) and Mesozoic units (4-8 km) of the Alpine nappe system and European platform. The Danube Lowland basin, one of the largest sedimentary basins of the West Carpathians, is a multiphase complex of structural units and has in excess of 8 km of Paleogene and Neogene basin fill. Although minor gas reserves are known, it is essentially a frontier hydrocarbon province. The East Slovakian basin is the largest and most important of the three depocenters of the Transcarpathian Depression. The basin is filled with over 7 km of Tertiary flysch and molasse. Hydrocarbon reserves are being exploited from the Neogene Badenian and Sarmatian clastic reservoirs. Syntheses of field and geophysical data indicate that the West Carpathian Neogene basins are multiphase in their development and, therefore, more complex than suggested by previous studies. This multiphase basin evolution has created a challenging array of hydrocarbon play concepts.
- OSTI ID:
- 5683116
- Report Number(s):
- CONF-910403--
- Journal Information:
- AAPG Bulletin (American Association of Petroleum Geologists); (United States), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Vol. 75:3; ISSN AABUD; ISSN 0149-1423
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580000 -- Geosciences
CENOZOIC ERA
CZECHOSLOVAKIA
DEVELOPING COUNTRIES
EUROPE
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GEOLOGY
MINERAL RESOURCES
NATURAL GAS DEPOSITS
PETROLEUM DEPOSITS
PETROLEUM GEOLOGY
PLATE TECTONICS
RESOURCES
SEDIMENTARY BASINS
SUBDUCTION ZONES
TECTONICS
TERTIARY PERIOD