Tertiary stratigraphy and petroleum potential of cold bay-false pass area, Alaska Peninsula
Journal Article
·
· Am. Assoc. Pet. Geol. Bull.; (United States)
OSTI ID:7028025
Recent mapping clarifies the age, distribution, and environments of deposition of Tertiary sedimentary rocks along the outer part of the Alaska Peninsula and on Unimak Island. Marine and leaf-fossil assemblages indicate that the Belkofski Formation is of Oligocene age, and comprises interfingering marine and nonmarine volcaniclastic rocks. The Bear Lake Formation of Miocene age is not present in the Cold Bay area as previously mapped; and in a previously unmapped area, the Tachilni Formation of late Miocene and early Pliocene age extends from Cold Bay to False Pass. Pre-Tetiary rocks do not crop out along the shoreline of Unimak Island. The petroleum potential of Tertiary and Mesozoic rocks in the Cold Bay area is minimized by sandstone with poor reservoir properties, absence of organic-rich source rocks, and weakly developed folds. 4 figures.
- Research Organization:
- Geological Survey, Menlo Park, CA
- OSTI ID:
- 7028025
- Journal Information:
- Am. Assoc. Pet. Geol. Bull.; (United States), Journal Name: Am. Assoc. Pet. Geol. Bull.; (United States) Vol. 63:9; ISSN AAPGB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
02 PETROLEUM
020200 -- Petroleum-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580100* -- Geology & Hydrology-- (-1989)
ALASKA
CENOZOIC ERA
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGY
MAPPING
MINERAL RESOURCES
NORTH AMERICA
PACIFIC NORTHWEST REGION
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RESOURCES
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SEDIMENTARY ROCKS
STRATIGRAPHY
TERTIARY PERIOD
USA
020200 -- Petroleum-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580100* -- Geology & Hydrology-- (-1989)
ALASKA
CENOZOIC ERA
GEOLOGIC AGES
GEOLOGIC DEPOSITS
GEOLOGY
MAPPING
MINERAL RESOURCES
NORTH AMERICA
PACIFIC NORTHWEST REGION
PETROLEUM DEPOSITS
RESOURCES
ROCKS
SEDIMENTARY ROCKS
STRATIGRAPHY
TERTIARY PERIOD
USA