Fault zone deformational constraints on Paleogene tectonic evolution in southern Puerto Rico
Journal Article
·
· Geophysical Research Letters (American Geophysical Union); (United States)
- Dartmouth College, Hanover, NH (United States)
- Univ. of Puerto Rico, Mayaguez (Puerto Rico)
Paleogene deformation in south central Puerto Rico of Cretaceous-Eocene volcaniclastic sediments and volcanic rocks is characterized by west-northwest trending sinistral strike-slip faults, northeast directed thrusts, and fault-related mesoscopic folds. A west-northwest trending belt of predominantly Eocene age sediments is flanked by Upper Cretaceous rocks; a 8-15 km wide fault zone is spatially coincident with this lithologic belt. Structural data and deformational style indicate that the area is a sinistrally transpressive, slightly north vergent, asymmetric flower structure, of which the upper portion is presently exposed in the belt of predominantly Eocene sediments. Deformational characteristics, in combination with sedimentary and tectonic evidence, constrain evolutionary scenarios of the fault zone (specifically, age and amount of displacement) and the northeastern Caribbean, as discussed herein.
- OSTI ID:
- 5511497
- Journal Information:
- Geophysical Research Letters (American Geophysical Union); (United States), Journal Name: Geophysical Research Letters (American Geophysical Union); (United States) Vol. 18:3; ISSN 0094-8276; ISSN GPRLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020200 -- Petroleum-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580000* -- Geosciences
AGE ESTIMATION
CENOZOIC ERA
CRETACEOUS PERIOD
DEFORMATION
DEVELOPED COUNTRIES
DISTRIBUTION
EOCENE EPOCH
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GREATER ANTILLES
IGNEOUS ROCKS
ISLANDS
LATIN AMERICA
MESOZOIC ERA
MINERAL RESOURCES
NORTH AMERICA
PETROLEUM DEPOSITS
PUERTO RICO
RESOURCES
ROCKS
SEDIMENTARY ROCKS
SLIP
TECTONICS
TERTIARY PERIOD
USA
VOLCANIC ROCKS
WEST INDIES
020200 -- Petroleum-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580000* -- Geosciences
AGE ESTIMATION
CENOZOIC ERA
CRETACEOUS PERIOD
DEFORMATION
DEVELOPED COUNTRIES
DISTRIBUTION
EOCENE EPOCH
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGIC FAULTS
GEOLOGIC FRACTURES
GEOLOGIC STRUCTURES
GREATER ANTILLES
IGNEOUS ROCKS
ISLANDS
LATIN AMERICA
MESOZOIC ERA
MINERAL RESOURCES
NORTH AMERICA
PETROLEUM DEPOSITS
PUERTO RICO
RESOURCES
ROCKS
SEDIMENTARY ROCKS
SLIP
TECTONICS
TERTIARY PERIOD
USA
VOLCANIC ROCKS
WEST INDIES