Kopela Shale Fm
Period:
Calymmian
Age Interval:
early Calymmian
Province:
Proterozoic S.India Pranhita-Godavari east basin
Lithology and Thickness
Claystone. Gray-green to black, plane-laminated shale with sparse flat lenses of cross-bedded medium- to fine-grained sandstone with a capping of heterolithic sandstone-shale having wavy and flaser bedding, asymmetric ripples and desiccation cracks
Lithology Pattern:
Claystone
Relationships and Distribution
Lower contact
Underlain by the Tarur Nala Fm
Upper contact
Overlain by the Po Gutta Sandstone Fm
Regional extent
Approximately coeval with upper Enchencheruvu Chert and lower Rajaram Fm of Mulug Gr of Pranhita-Godavari west basin
GeoJSON
{"type":"Feature","geometry":{"type":"MultiPolygon","coordinates":[[[[79.28,20.07],[79.69,19.75],[81.77,16.74],[81.4,16.64],[79.6,19.08],[79.27,19.75],[79.28,20.07]]]]}}
Fossils
Age
Age Span:
Beginning stage:
Calymmian
Fraction up in beginning stage:
0.16
Beginning date (Ma):
1,568.00
Ending stage:
Calymmian
Fraction up in the ending stage:
0.2
Ending date (Ma):
1,560.00
Depositional setting
Deep shelf, to intertidal to shallow subtidal
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.