Estimating strain from fault-slip using a line sample
Peacock, D.C.P. and Sanderson, D.J. (1993) Estimating strain from fault-slip using a line sample. Journal of Structural Geology, 15, (12), 1513-1516. (doi:10.1016/0191-8141(93)90011-X).
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A method is presented that enables data for faults with different orientations and displacements, measured along a single straight line, to be used to estimate the magnitudes and orientations of the principal strain axes. The method combines two well-established techniques. When sampling along a line, the probability of intersecting a fault is affected by its orientation. This sampling bias may be minimized by the use of a weighting, w = 1/cos ?, where ? = angle between the perpendicular to the fault and the sample line. The displacement gradient and Lagrangian strain tensors may then be used to describe the deformation with respect to the undeformed state. The method can also be applied to such structures as veins and stylolites. As an example of the use of the method, 1340 normal faults have been measured along a 6 km length of Cretaceous chalk cliffs at Flamborough Head, Humberside, U.K. Consistent strain estimates have been obtained for different portions of the cliff.
|Digital Object Identifier (DOI):||doi:10.1016/0191-8141(93)90011-X|
|Subjects:||T Technology > TA Engineering (General). Civil engineering (General)
Q Science > QC Physics
Q Science > QE Geology
|Divisions:||University Structure - Pre August 2011 > School of Civil Engineering and the Environment
|Date Deposited:||11 Mar 2010|
|Last Modified:||31 Mar 2016 13:07|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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