Structure and prospects of Alpine basins and foredeep

Conference · Wed Sep 01 04:00:00 EDT 1993 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:6849164

Bachman, G H ^[1]

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1. DEE Deilmann Erdol Erdgas GmbH, Hannover (Germany)

The sedimentary history of the German Molasse basin is characterized by three stages separated by major unconformities: (1) Permian-Carboniferous siliciclastic graben sedimentation, (2) Mesozoic mixed carbonate-siliciclastic shelf sedimentation, and (3) Tertiary siliciclastic foredeep sedimentation. The southern-most part of the basin was overthrust by the Alpine nappes. The hydrocarbon source rocks are Toarcian and Oligocene shales as well as Permian-Carboniferous coals. Most of the oil kitchen is to the north of the thrust front, whereas the gas kitchen is primarily in the subthrust zone. Some biogenic gas occurs in the shallower northeastern parts of the basin. The chief reservoir rocks are Triassic and Jurassic sandstones in the central and western part, and Tertiary sandstones and carbonates in the eastern part of the basin. They are commonly sealed by marine shales. Most traps are on the upthrown side of basin-parallel antithetic normal faults. The Molasse basin is in a mature stage of exploration, with relatively low remaining recoverable reserves. Additional exploration potential is inferred in stratigraphic traps in the foreland basin, as well as in structural traps in the subthrust zone and the nappes.

• OSTI ID: 6849164
• Report Number(s): CONF-9310237--
• Conference Information: Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Journal Volume: 77:9
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
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03 NATURAL GAS
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CARBONATES
CENOZOIC ERA
DEVELOPED COUNTRIES
ENERGY SOURCES
EUROPE
EXPLORATION
FEDERAL REPUBLIC OF GERMANY
FLUIDS
FOSSIL FUELS
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GEOLOGIC HISTORY
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HYDROCARBONS
JURASSIC PERIOD
MESOZOIC ERA
NATURAL GAS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PALEOZOIC ERA
PERMIAN PERIOD
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RESERVOIR ROCK
ROCKS
SANDSTONES
SEDIMENTARY BASINS
SEDIMENTARY ROCKS
SEDIMENTATION
SHALES
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TERTIARY PERIOD
WESTERN EUROPE