Clay mineral diagenesis in Westwater Canyon sandstone member of Morrison Formation, San Juan basin, New Mexico
Conference
·
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
OSTI ID:5499407
- Univ. of New Mexico, Albuquerque (USA)
The Westwater Canyon Sandstone Member and the Brushy Basin and Recapture Shale Members of the Morrison Formation are examined from core located on the southern flank of the San Juan basin, northwestern New Mexico. Clay mineralogy of fine-grained lithologies of the Westwater Canyon Sandstone Member is contrasted with that of coarse-grained lithologies. Two distinct mixed-layer clay populations are present: a high expandable mixed-layer illite/smectite associated with coarse-grained lithologies. Two distinct mixed-layer clay populations are present: a highly expandable mixed-layer illite/smectite associated with coarse-grained units (in addition to chlorite and kaolinite), and an illitic mixed-layer illite/smectite (in some cases ordered and accompanied by traces of chlorite) in the fine-grained units. The expandable component of the mixed-layer clay does not exhibit a trend with depth but is lithology dependent. Coarse-grained samples from the Westwater Canyon Sandstone Member contain numerous mudstone intraclasts. The clay mineralogy of selected clasts has been examined. These lithologic characteristics must be taken into account in interpreting clay mineral diagenesis within the Morrison Formation. Framework grain alternation within the Westwater Canyon Sandstone Member has been linked to lacustrine facies in the overlying Brushy Basin Shale Member. Authigenic clay minerals within the Westwater Canyon Sandstone Member may provide a record of downward-percolating lake fluids. Early diagenetic effects must be recognized in order to interpret the complete diagenetic history of the Westwater Canyon Sandstone Member.
- OSTI ID:
- 5499407
- Report Number(s):
- CONF-8910195--
- Conference Information:
- Journal Name: AAPG Bulletin (American Association of Petroleum Geologists); (USA) Journal Volume: 73:9
- Country of Publication:
- United States
- Language:
- English
Similar Records
Compositional variation in clay mineral fraction of fine and coarse-grained units in Westwater Canyon Member (Morrison Formation, San Juan basin, New Mexico)
Petrology of Westwater Canyon member, Morrison Formation, East Chaco Canyon drilling project, New Mexico-comparison with Grants mineral belt
Deposition and diagenesis of the Brushy Basin and upper Westwater Canyon members of the Morrison Formation in northwest New Mexico and its relationship to uranium mineralization
Conference
·
Fri Sep 01 00:00:00 EDT 1989
· AAPG Bulletin (American Association of Petroleum Geologists); (USA)
·
OSTI ID:5570956
Petrology of Westwater Canyon member, Morrison Formation, East Chaco Canyon drilling project, New Mexico-comparison with Grants mineral belt
Conference
·
Mon Dec 31 23:00:00 EST 1979
· Mem. - N.M. Bur. Mines Miner. Resour.; (United States)
·
OSTI ID:6135294
Deposition and diagenesis of the Brushy Basin and upper Westwater Canyon members of the Morrison Formation in northwest New Mexico and its relationship to uranium mineralization
Thesis/Dissertation
·
Fri Dec 31 23:00:00 EST 1982
·
OSTI ID:6136656
Related Subjects
02 PETROLEUM
020200* -- Petroleum-- Reserves
Geology
& Exploration
CLAYS
DIAGENESIS
DRILL CORES
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC HISTORY
LITHOLOGY
MINERAL RESOURCES
NEW MEXICO
NORTH AMERICA
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
USA
020200* -- Petroleum-- Reserves
Geology
& Exploration
CLAYS
DIAGENESIS
DRILL CORES
FEDERAL REGION VI
GEOLOGIC DEPOSITS
GEOLOGIC FORMATIONS
GEOLOGIC HISTORY
LITHOLOGY
MINERAL RESOURCES
NEW MEXICO
NORTH AMERICA
PETROLEUM DEPOSITS
RESERVOIR ROCK
RESOURCES
ROCKS
SANDSTONES
SEDIMENTARY ROCKS
USA