GangeticAlluvium Fm
Period:
Quaternary
Age Interval:
late Pleistocene
Province:
N.India Punjab Basin, N.India Ganga Basin, N.India Purnea Basin
Type Locality and Naming
Ganges River plain
Lithology and Thickness
Loose sand, kankar (carbonate-nodules in red clay-silt), gravel and pebble with a little sandy clay. The thickness varies from 190 to 450 m.
Lithology Pattern:
Conglomerate
Relationships and Distribution
Lower contact
Conformable on Upper Siwalik Fm
Upper contact
Present surface
Regional extent
Throughout Ganges middle watersheds?
GeoJSON
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Fossils
Age
Late Pleistocene (vaguely assigned to past 220 kyr)
Age Span:
Beginning stage:
Chibanian
Fraction up in beginning stage:
0.8
Beginning date (Ma):
0.26
Ending stage:
Holocene
Fraction up in the ending stage:
0.3
Ending date (Ma):
0.01
Depositional setting
Depositional pattern:
Additional Information
Compiler:
Modified from Ravi Misra (Ganga, Punjab and Purnea basins; Chap. 6; ONGC Bull 44, 2009)