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Correlation between plate motions and tectonic subsidence of sedimentary basins in Africa

Conference · · AAPG Bulletin (American Association of Petroleum Geologists); (United States)
OSTI ID:6964571
 [1]
  1. Vrije Universiteit, Amsterdam (Netherlands)
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From the early Mesozoic until the Holocene, the African continent was generally in a state of extension, based on plate tectonic reconstructions and sedimentary basin subsidence studies. Beginning with the breakup of Gondwana in the Permian-Triassic, this resulted in the formation of the present-day African continental margins and a series of intracontinental rift basins, located mainly on older (late Proterozoic) shear zones. Numerous wells from marginal, as well as intracontinental rift basins, have been backstripped to elucidate their Mesozoic and Tertiary tectonic histories. They show a generally consistent patterns of subsidence and uplift phases in all basins. During the evolution of these basins, the direction of African plate motion changed several times. This was related to the differential opening of the central and south Atlantic oceans, changes in spreading rates in both the Atlantic and Indian oceans, and the collision between Africa and Europe. Episodes of compressional deformation related to these plate tectonic changes are revealed in backstripped tectonic subsidence curves.

OSTI ID:
6964571
Report Number(s):
CONF-9310237--
Journal Information:
AAPG Bulletin (American Association of Petroleum Geologists); (United States), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Vol. 77:9; ISSN 0149-1423; ISSN AABUD2
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
03 NATURAL GAS
030200 -- Natural Gas-- Reserves
Geology
& Exploration
AFRICA
CONTINENTAL MARGIN
DEFORMATION
GEOLOGIC AGES
GEOLOGIC HISTORY
GEOLOGIC STRUCTURES
GONDWANA
GROUND MOTION
GROUND SUBSIDENCE
GROUND UPLIFT
MESOZOIC ERA
MOTION
PALEOZOIC ERA
PERMIAN PERIOD
PLATE TECTONICS
RIFT ZONES
SEDIMENTARY BASINS
TECTONICS
TRIASSIC PERIOD