ID:
S_088
Physico-chemical characterisation of the Quaternary Faults and their implications for fault slip and hazard assessment
Lead Convener
Piyal Halder Birbal Sahni Institute of Palaeosciences, Lucknow, India. piyalhalder.org@gmail.com piyal.halder@bsip.res.in
Co Convener(s)
Vineet Gahlaut Wadia Institute of Himalayan Geology, Dehradun, Uttarakhand, India. vkgahalaut@yahoo.com vkgahalaut.ngri@csir.res.in Anupam Sharma Birbal Sahni Institute of Palaeosciences, Lucknow, India. anupam110367@gmail.com anupam.sharma@bsip.res.in
Session Keywords
Geodesy, Fault Geochemistry, Clay minerals, Environmental Seismic Intensity (ESI) Scale
Commission
TERPRO
Abstract Category
Paleoseismology
Session Description
The Seismogenic potential of the Quaternary Faults, with the activation history of <1.6 Ma, is reliant on their physical attributes such as fault geometry, slip rate, frictional properties, recurrence interval and the time of last surface rupture. While the seismic, ERT and GPR surveys help in identification and geometric characterisation of the Quaternary Faults, the geodetic methods using InSAR and GPS are used for assessing fault slip rate and predicting the potential seismic hazards. However, the chemistry and mineralogy of these Quaternary Faults play a significant role in governing their physical properties, which not only impact the fault slip rate or seismic magnitude but also influence the environmental effects articulated in the INQUA ESI Scale. Hence, this session seeks to gather a diverse array of contributions on the intricate interplay between the physics and chemistry of Quaternary faults, ultimately enhancing our assessment and management of seismic hazards.
