Kink bands in thrust regime: Examples from Srinagar–Garhwal area, Uttarakhand, India

Abstract

This paper deciphers the late stress systems involved in the development of kink bands in the perspective of thrust regime. In kink bands, the correlation coefficient for α-β plots is positive near thrusts and negative away from thrusts. The plots show nearly linear relationship near thrusts and non-linear relationship away from thrusts. The rotation was prominent mechanism of kink band formation near thrusts and rotation coupled with shearing, along the kink planes away from thrusts. Along thrusts σ 1 is horizontal E-W trend and it rotates to horizontal N-S trend away from the thrust. The proposed model establishes that (1) the shearing along kink planes led to angular relationship, β < α and (2) the kink planes of conjugate kinks could be used for paleostress analysis even in those cases where shearing along these planes has occurred.

Nitrate contamination of riverbank filtrate at Srinagar, Uttarakhand, India: A case of geogenic mineralization

“…The release is more diffusion controlled and depends on contact area and travel time of water in the strata. The phyllite bedrock in the region has significant folds and fractures (Shekhar et al, 2011). These rocks are not highly porous and predominant interaction of water with these bedrocks is likely to be only through fractures and cracks in the bedrock.…”