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Depositional and diagenetic history of a Pennsylvanian algal-mound complex: Bug and Papoose Canyon fields, Paradox basin, Utah and Colorado

Journal Article · · AAPG Bulletin (American Association of Petroleum Geologists); (USA)
OSTI ID:6558741
During the Middle Pennsylvanian (Desmoinesian), the Paradox basin was an enclosed, evaporitic basin consisting of a deep trough with a shallow shelf rimming its south and west side. During Desert Creek deposition, at least two large phylloid algal-mound complexes flourished on or at the edge of the shelf. One complex is now delineated by Aneth field and the other is partly delineated by Bug and Papoose Canyon fields. In the Bug-Papoose Canyon algal-mound complex of southeastern Utah and southwestern Colorado, carbonate mud mounds grew by accumulation of platy algal fragments, by baffling and trapping of fine sediment by the algae, and by precipitation of botryoidal aragonite cement between fragments. Extensive diagenesis of the accumulations began with syndepositional precipitation of botryoidal cement, inferred to have been aragonite, on phylloid algal plates, creating a topographically prominent, rigid framework containing abundant pore space. Brecciation during compaction created more pores. Parts of voids were subsequently filled by internal sediment and by calcite and gypsum cements. Finally, the algal-mound accumulations were extensively dolomitized and their porosity increased by dissolution. The relationship of these algal mounds to the Desert Creek shelf edge suggests that delineation of the shelf edge holds the promise of further discoveries of algal mounds as it is traced to the west and east of Bug and Papoose Canyon fields. 17 figs., 1 tab.
OSTI ID:
6558741
Journal Information:
AAPG Bulletin (American Association of Petroleum Geologists); (USA), Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Vol. 74:7; ISSN AABUD; ISSN 0149-1423
Country of Publication:
United States
Language:
English

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Significance of botryoidal aragonite in early diagenetic history of phylloid algal mounds in Bug and Papoose Canyon fields, southeastern Utah and southwestern Colorado
Conference · Sat Mar 31 23:00:00 EST 1984 · Am. Assoc. Pet. Geol., Bull.; (United States) · OSTI ID:6434493
Significance of botryoidal aragonite in early diagenetic history of phylloid algal mounds in Bug and Papoose Canyon fields, southeastern Utah and southwestern Colorado
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Related Subjects

02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
58 GEOSCIENCES
580000 -- Geosciences
CARBONATE ROCKS
CARBONIFEROUS PERIOD
COLORADO
DEPOSITION
EXPLORATION
FEDERAL REGION VIII
GEOLOGIC AGES
GEOLOGIC DEPOSITS
MINERAL RESOURCES
NORTH AMERICA
OIL FIELDS
PALEOZOIC ERA
PARADOX BASIN
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
ROCKS
SEDIMENTARY ROCKS
USA
UTAH