Malaprabha Fm
Period:
Orosirian
Age Interval:
Middle Orosirian
Province:
Proterozoic S.India Kaladgi Basin
Type Locality and Naming
Lower formation (2 of 9) of Kaladgi Gr and lower-middle of its Lokapur Subgroup (2 of 6)
Lithology and Thickness
Siliceous claystone: Shale, chert, chert breccia
Lithology Pattern:
Chert
Relationships and Distribution
Lower contact
Underlain by Ramburg Fm sandstone
Upper contact
Overlain by Yargatti Fm claystone
Regional extent
GeoJSON
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Fossils
Age
Age Span:
Beginning stage:
Orosirian
Fraction up in beginning stage:
0.42
Beginning date (Ma):
1,945.00
Ending stage:
Orosirian
Fraction up in the ending stage:
0.44
Ending date (Ma):
1,940.00
Depositional setting
Offshore subtidal. Major transgression inundated the sea, and shale, chert and limestones were deposited.
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.