Collingham Fm
Period:
Permian
Age Interval:
Early Permian
Province:
Karoo Basin
Type Locality and Naming
Synonym:
Lithology and Thickness
Has been interpreted as passive suspension settling of mud intermixed with distal turbidites, periodically interrupted by volcanic ash fallout. (deep marine). thin beds of siliceous, dark grey mudstone alternated with softer, yellow-grey tuff beds.
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Whitehill Fm (conformable)
Upper contact
Ripon Fm (conformable)
Regional extent
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Sakmarian
Fraction up in beginning stage:
0.75
Beginning date (Ma):
291.26
Ending stage:
Artinskian
Fraction up in the ending stage:
0
Ending date (Ma):
290.51
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Rebecca Bobick (and Wen Du), modified from Fig. 2. from Catuneanu, O., et al.,"The Karoo basins of south-central Africa", Journal of African Earth Sciences 43 (2005), 211-254