Coaxial deformed and magnetic fabrics without simply correlated magnitudes of principal values |
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Authors: | Graham J. Borradaile John S. Mothersill |
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Affiliation: | Department of Geology, Lakehead University, Thunder Bay, Ontario P7B 5E1 Canada;Principal, Royal Roads Military College Victoria, British Columbia VOS 1BQ Canada |
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Abstract: | Results of a detailed strain analysis of accretionary lapilli in the Borrowdale Volcanic sequence of England indicate a bedding-memory component to the rock's fabric. A simple, new strain analysis method uses variation in thickness of lapilli rims and appears not to be influenced by the bedding fabric. The orientations of the principal magnetic susceptibilities show a strong correlation with the principal strain orientations, as in other studies, but we can detect no correlation between strain magnitudes and principal susceptibility magnitudes in the same small specimens. |
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