Balfour Fm
Period:
Triassic, Permian
Age Interval:
Capitanian – Early Induan
Province:
Karoo Basin
Type Locality and Naming
Synonym:
Lithology and Thickness
Base (Oudeburg member) consists of fining-upward sandstone-dominated sequences, the middle (Barberskrans Member) is dominantly argillaceous. Near the top the formation changes from mudrock sequences (Palingkloof member) to more siltstone-rich with numerous clay chip-breccia lenses.
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Middleton Fm (conformable)
Upper contact
Katberg Fm (conformable)
Regional extent
Karoo Basin
GeoJSON
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Fossils
Age
Capitanian-early Induan
Age Span:
Beginning stage:
Wordian
Fraction up in beginning stage:
0.8
Beginning date (Ma):
265.31
Ending stage:
Induan
Fraction up in the ending stage:
0.5
Ending date (Ma):
250.89
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