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Sarnadih Sandstone Formation
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Sarnadih Sandstone Fm base reconstruction

Sarnadih Sandstone Fm

Period: 
Tonian

Age Interval: 
late Tonian


Province: 
Proterozoic S.India Chattisgarh Basin

Type Locality and Naming

Lower formation (1 of 2) of Kharsiya Gr

Synonym: Sarnadih Fm


Lithology and Thickness

Conglomerate, red-brown sandstone, shale. It is an extensive interval of red sandstone, with a

thin conglomerate horizon mantling the unconformity surface. The conglomerate grades up to pebbly sandstone (Fig. – image B) and very coarse-grained arkosic sandstone.

[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: 
Coarse-grained sandstone


Relationships and Distribution

Lower contact

Unconformity, on erosion surface onto Churtela Shale Fm (Tarenga Shale Fm) of uppermost Raipur Gr

Upper contact

Overlain by Nandeli Shale Fm with gradational contact.

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: 
0.8

    Ending date (Ma):  
776.00

Depositional setting

Fluvial to tidal shallow-marine.


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.