C12-enrichment along intraformational unconformities within Proterozoic Bhander Limestone, Son valley, India and its implication

1998 ◽  
Vol 13 (1) ◽  
pp. 108-114 ◽  
Author(s):  
Subir Sarkar ◽  
Partha Pratim Chakraborty ◽  
S. K. Bhattacharya ◽  
Santanu Banerjee
Keyword(s):  
Bhander Limestone

Early Diagenetic Chert Nodules in Bhander Limestone, Maihar, Satna District, Madhya Pradesh, India

1976 ◽  
Vol 84 (2) ◽  
pp. 213-224 ◽  
Author(s):  
S. K. Chanda ◽  
Ajit Bhattacharyya ◽  
Soumen Sarkar
Keyword(s):  
Madhya Pradesh ◽  
Bhander Limestone

scholarly journals Seismic and non-seismic soft-sediment deformation structures in the Proterozoic Bhander Limestone, central India

Geologos ◽  
2014 ◽  
Vol 20 (2) ◽  
pp. 89-103 ◽  
Author(s):  
Subir Sarkar ◽  
Adrita Choudhuri ◽  
Santanu Banerjee ◽  
A.J. (Tom) Van Loon ◽  
Pradip K Bose
Keyword(s):  
Central India ◽  
Small Scale ◽  
Soft Sediment ◽  
Facies Association ◽  
Deformation Structures ◽  
Basin Subsidence ◽  
Sediment Deformation ◽  
Soft Sediment Deformation ◽  
Hypersaline Lagoon ◽  
Bhander Limestone

Abstract Numerous soft-sediment deformation structures occur within the Proterozoic Bhander Limestone of an intracratonic sag basin in a 750 m long section along the Thomas River, near Maihar, central India. Part of these deformation structures have most probably a non-seismic origin, but other structures are interpreted as resulting from earthquake-induced shocks. These seismic structures are concentrated in a 60 cm thick interval, which is interpreted as three stacked seismi-tes. These three seismites are traceable over the entire length of the section. They divide the sedimentary succession in a lower part (including the seismites) deposited in a hypersaline lagoon, and an upper open-marine (shelf) part. Most of the soft-sediment deformations outside the seismite interval occur in a lagoonal intraclastic and muddy facies association. The SSDS within the seismite interval show a lateral continuity. They record simultaneous fluidisation and liquefaction. The bases of each of the three composing seismite bands are defined by small-scale shear folds, probably recording an earthquake and aftershocks. The presence of the three seismite bands at the boundary between the lagoonal and the overlying open-marine oolitic facies association suggests that the seismic event also triggered basin subsidence.

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