Akbra Shale Yemen Basin General Lithology Fm
Period:
Permian
Age Interval:
Province:
Afar-Yemen Region
Type Locality and Naming
Column: Yemen Basin General Lithology
Lithology and Thickness
Akbra Shale Fm:
LITHOLOGY = The Akbra Shale unconformably overlies the basement and may be up to 130 m thick. Lithologies are principally pebbly gray shale and siltstone interpreted to be fluvio-glacial in origin
CALIBRATION = 75% up in the Permian.
REFERENCE = Bosworth, W., "The Red Sea and Gulf of Aden Basins", Journal of African Earth Sciences 43 (2005) 334-378
LITHOLOGY = The Akbra Shale unconformably overlies the basement and may be up to 130 m thick. Lithologies are principally pebbly gray shale and siltstone interpreted to be fluvio-glacial in origin
CALIBRATION = 75% up in the Permian.
REFERENCE = Bosworth, W., "The Red Sea and Gulf of Aden Basins", Journal of African Earth Sciences 43 (2005) 334-378
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Upper contact
Regional extent
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[48,15],[47,14],[48,13],[49,14],[48,15]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Capitanian
Fraction up in beginning stage:
0.14
Beginning date (Ma):
263.65
Ending stage:
Induan
Fraction up in the ending stage:
0
Ending date (Ma):
251.90
Depositional setting
Depositional pattern:
Additional Information
long: 48 lat: 14
Compiler: