Information - TS9 Paleostress fields from structural kinematics - real or imagined
Event Information
Palaeostress analysis, a major discipline within structural geology, concerns itself with the reconstruction of past geological stress states based on data from microstructures, and aims to provide constraints on regional tectonics. This session will focus on the following aspects of palaeostress analysis:
*methodological advances, using data collected from striated faults, stylolites and tension gashes. The use of joints for regional paleostress analysis.
* the variation of palaeostress states with time. The recognition of successive stress events – strategies and examples.
* The spatial variation of stress and the reconstruction of stress fields, i.e. the integration of several regionally distributed stress estimates to attempt to create palaeostress trajectory patterns. What are the constraints on neighbouring stress tensors imposed by stress compatibility?
* Testing the validity of the results. Are existing methods based on faulty assumptions? Can tests be devised to distinguish the results from coherent datasets from the results derived from random assemblages of slipped faults? If the underlying assumptions are flawed, why are consistent results obtained? If fault-slip methods do not deliver palaeostresses what ARE they delivering?
Preliminary List of Solicited Speakers
Jacques Angelier
David Pollard
Co-Sponsorship
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