Kharsiya Gr
Period:
Tonian
Age Interval:
late Tonian
Province:
Proterozoic S.India Chattisgarh Basin
Type Locality and Naming
Lithology and Thickness
Upward progression from Sarnadih Sandstone Fm conglomerate to Nandeli Shale Fm.
[Figure: Volcaniclastics from the Raipur and Kharsiya Groups, Chattisgarh basin. (A) Churtela Shale Fm (Tarenga Shale Fm) - Planar tabular-bedded, cross-stratified, coarse ash tuff bed. (B) Sarnadih Sandstone Fm - Pebbly sandstone with clast derived from underlying tuff units and from the basement. (from Saha et al., 2016)]
Lithology Pattern:
Clayey sandstone
Relationships and Distribution
Lower contact
Unconformity, on erosion surface onto Churtela Shale Fm (Tarenga Shale Fm) of uppermost Raipur Gr
Upper contact
Unconformity, overlain by Gondwana Supergroup (which begins with early Permian glacial Talchir Fm)
Regional extent
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Tonian
Fraction up in beginning stage:
0.7
Beginning date (Ma):
804.00
Ending stage:
Tonian
Fraction up in the ending stage:
0.9
Ending date (Ma):
748.00
Depositional setting
Upward progression from fluvial through tidal to muddy shelf
Depositional pattern:
Additional Information
Compiler:
From: Saha D. (Dilip), Patranabis-Deb, S., and Colllins, A.S. (2016) Proterozoic stratigraphy of southern Indian cratons and global context. In: Stratigraphy & Timescales, 1: 1-59.