A tectonically controlled basin-fill within the Valle del Cauca, West-Central Colombia

Conference · Sun Jan 31 23:00:00 EST 1993 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:6066955

Rine, J M; Keith, Jr, J F; Alfonso, C A; Ballesteros, I; Laverde, F; Sacks, P E; Secor, Jr, D T ^[1]; Perez, V E; Bernal, I; Cordoba, F; Numpaque, L E ^[2]

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1. Univ. of South Carolina, Columbia (United States)
2. Ecopetrol, Bogota (Colombia)

Tertiary strata of the Valle del Cauca reflect a forearc/foreland basin tectonic history spanning a period from pre-uplift of the Cordillera Central to initiation of uplift of the Cordillera Occidental. Stratigraphy of the Valle del Cauca begins with Jurassic-Cretaceous rocks of exotic and/or volcanic provenance and of oceanic origin. Unconformably overlying these are Eocene to Oligocene basal quartz-rich sandstones, shallow marine algal limestones, and fine-grained fluvial/deltaic mudstones and sandstones with coalbeds. These Eocene to Oligocene deposits represent a period of low tectonic activity. During late Oligocene to early Miocene, increased tectonic activity produced conglomeratic sediments which were transported from east to west, apparently derived from uplift of the Cordillera Central, and deposited within a fluvial to deltaic setting. East-west shortening of the Valle del Cauca basin folded the Eocene to early Miocene units, and additional uplift of the Cordillera Central during the later Miocene resulted in syn-tectonic deposition of alluvial fans. After additional fold and thrust deformation of the total Eocene-Miocene basin-fill, tectonic activity abated and Pliocene-Quaternary alluvial and lacustrine strata were deposited. Within the framework of this depositional and tectonic history of the Valle del Cauca, hydrocarbon exploration strategies can be formulated and evaluated.

• OSTI ID: 6066955
• Report Number(s): CONF-930306--
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (United States) Vol. 77:2; ISSN 0149-1423; ISSN AABUD2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
ACTIVITY LEVELS
ALLUVIAL DEPOSITS
CENOZOIC ERA
COLOMBIA
CRETACEOUS PERIOD
DEFORMATION
DEPOSITION
DEPOSITS
DEVELOPING COUNTRIES
EXPLORATION
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC HISTORY
GEOLOGIC STRATA
GEOLOGIC STRUCTURES
GEOLOGY
HYDROCARBONS
JURASSIC PERIOD
LATIN AMERICA
MESOZOIC ERA
MINERALS
ORGANIC COMPOUNDS
ORIGIN
OXIDE MINERALS
QUARTZ
RESOURCE POTENTIAL
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
SEDIMENTS
SOUTH AMERICA
STRATIGRAPHY
TECTONICS
TERTIARY PERIOD