Basement involved thrusts from Northwestern Maracaibo Basin

Conference · Mon Feb 01 00:00:00 EST 1993 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:6106488

Audemard, F ^[1]

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1. Intevep, S.A., Caracas (Venezuela)

The interpretation of seismic reflection profiles from northwestern Maracaibo Basin, north of the Palmar River, suggests a late Neogene age for all the structures located within the north-northeast trends of anticlinal belts. These folded structures appear to be ramp anticlines generated from basement involved thrusts. Such detachments are intercepted by conjugate systems of low-angle decollements decoupled from the thick shaly intervals of Cretaceous and Eocene age. The resulting configuration of these fault systems are related to a mechanic of deformation referred as [open quotes]fish tail[close quotes]. This structural style favors the superposition of structural traps at different levels. The superposed reservoirs from La Paz, Mara, Sibucara, Mara Oeste, and Ensenada among others constitute superb examples of this style of deformation. Similar anticlinal structures are also observed to the southeast of the Basin in the Ceuta-Tomoporo area.

• OSTI ID: 6106488
• Report Number(s): CONF-930306-; CODEN: AABUD2
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 77:2; Conference: International congress of the American Association of Petroleum Geologists (AAPG), Caracas (Venezuela), 14-17 Mar 1993; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
58 GEOSCIENCES
GEOLOGIC STRUCTURES
AGE ESTIMATION
GEOLOGIC TRAPS
LEVELS
VENEZUELA
SEISMIC SURVEYS
ANTICLINES
BASEMENT ROCK
CRETACEOUS PERIOD
DEFORMATION
EOCENE EPOCH
GEOLOGIC FAULTS
GEOLOGIC FORMATIONS
INCLINED STRATA
RESERVOIR ROCK
SEDIMENTARY BASINS
CENOZOIC ERA
DEVELOPING COUNTRIES
GEOLOGIC AGES
GEOLOGIC FRACTURES
GEOLOGIC STRATA
GEOPHYSICAL SURVEYS
LATIN AMERICA
MESOZOIC ERA
SOUTH AMERICA
SURVEYS
TERTIARY PERIOD
020200* - Petroleum- Reserves
Geology
& Exploration
580000 - Geosciences