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Hoskatti Formation
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Hoskatti Fm base reconstruction

Hoskatti Fm


Period: 
Orosirian

Age Interval: 
Late Orosirian


Province: 
Proterozoic S.India Kaladgi Basin

Type Locality and Naming

Uppermost formation (9 of 9) of Kaladgi Gr and of its Simikere Subgroup (3 of 3)


Lithology and Thickness

Slate, local dolerite dyke


Lithology Pattern: 
Claystone


Relationships and Distribution

Lower contact

Underlain by Arlikatti Fm

Upper contact

Angular unconformity, overlain by Kerur Fm conglomerate at base of Badami Gr = Basement uplift, folding and a hiatus in deposition follow the first cycle (Kaladgi Gr) of sedimentation in the Kaladgi Basin

Regional extent


GeoJSON

{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[74.23,16.22],[75.43,16.48],[76.18,16.14],[76,15.84],[74.49,15.82],[74.23,16.22]]]]}}

Fossils


Age 


Age Span: 

    Beginning stage: 
Orosirian

    Fraction up in beginning stage: 
0.7

    Beginning date (Ma): 
1,875.00

    Ending stage: 
Orosirian

    Fraction up in the ending stage: 
0.75

    Ending date (Ma):  
1,862.50

Depositional setting

Pelagic shale


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.