Analysis of rock lenses in extensional faults

st order) and secondary (2 nd and higher orders) fault lenses commonly have different c:a-ratios, and finally, (iii) particularly for the most competent rocks, lenses in faults with several metres of vertical displacement tend to be relatively thicker than lenses occurring in faults with less displacement, probably reflecting a higher number of high order lenses in such zones. The statistical average c:a-ratio for all lenses included in the study is 12,5:1.

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