Cretaceous and Tertiary palynology used in the geological understanding of the Maturin sub-basin, Venezuela

Conference · Fri Mar 01 00:00:00 EST 1991 · AAPG Bulletin (American Association of Petroleum Geologists); (United States)

OSTI ID:7262475

Paredes, I; Fasola, A ^[1]

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

The use of palynology and micropaleontology, two biostratigraphic tools used at Intevep, S.A., have been of great help in the geological understanding during studies done on cores of the Maturin subbasin, a foreland type basin in Eastern Venezuela. Basically, the palynological work consisted of palynological and palynofacies analysis used to determine ages and to interpret the paleoenvironments of deposition in comparison with the interpretations obtained through sedimentological and micropaleontological studies. Palynomorph assemblages and palynofacies are shown for the quiescent Late Cretaceous, for the Tertiary in sequences that are not exactly dated and probably represent the first compressive movements in the basin, and for the Oligocene. In general, in these sequences it was possible to determine marine environments varying from near-shore to inner neritic, and also subaereal paleosols in the Cretaceous. The work highlights the importance of multidisciplinary studies in order to obtain interpretations more in accordance with reality.

• OSTI ID: 7262475
• Report Number(s): CONF-910403-; CODEN: AABUD
• Journal Information: AAPG Bulletin (American Association of Petroleum Geologists); (United States), Vol. 75:3; Conference: Annual meeting of the American Association of Petroleum Geologists (AAPG), Dallas, TX (United States), 7-10 Apr 1991; ISSN 0149-1423
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
SEDIMENTARY BASINS
STRATIGRAPHY
SEDIMENTARY ROCKS
AGE ESTIMATION
PALYNOLOGY
VENEZUELA
CRETACEOUS PERIOD
DEPOSITION
GEOLOGIC HISTORY
TERTIARY PERIOD
CENOZOIC ERA
DEVELOPING COUNTRIES
GEOLOGIC AGES
GEOLOGIC STRUCTURES
GEOLOGY
LATIN AMERICA
MESOZOIC ERA
ROCKS
SOUTH AMERICA
580000* - Geosciences