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Krol Gr
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Krol Gr base reconstruction

Krol Gr

Period: 
Ediacaran

Age Interval: 
middle to late Ediacaran


Province: 
N.India Lesser Himalaya

Type Locality and Naming

Himachal Pradesh-Uttarakhand,


Lithology and Thickness

Dolomitic limestone. In approximate Upper to Lower (descending) order: KrolE dominant banded grey and pale cream white calcilutite to dololutite / KrolD Fm comprises an alternation of dolomitic limestone, microbial cherty limestone and dolostone shale with shale in excess of limestone. / KrolC Fm represented by dolostone, cherty limestone and shale. / KrolB Fm characterised by thinner laminated purple to red shales with blotches and intercalations of green shale. / KrolA Fm comprises chiefly a rapid alternation of greenish grey calcareous shale and argillaceous limestone with variable gradation.

[Figure: Krol Gr lithology table (provided by O.N. Bhargava & Birendra Singh)]


Lithology Pattern: 
Dolomitic limestone


Relationships and Distribution

Lower contact

Disconformity onto InfraKrol Fm

Upper contact

Disconformity (?) with Tal Fm (Shalyan Fm)

Regional extent


GeoJSON

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Fossils


Age 

Ediacaran, Relative age spans estimated from the correlation chart from (H. Xu, J.G. Meert and M.K. Pandit, Geoscience Frontiers 13 (2022).

Age Span: 

    Beginning stage: 
Ediacaran

    Fraction up in beginning stage: 
0.35

    Beginning date (Ma): 
601.33

    Ending stage: 
Ediacaran

    Fraction up in the ending stage: 
0.9

    Ending date (Ma):  
548.42

Depositional setting


Depositional pattern:  


Additional Information


Compiler:  

O.N. Bhargava & Birendra Singh.