Abstract

"By means of measurements of the direction of magnetization, talus may be distinguished from rock which has remained in situ. A criterion has been developed for the conditions under which the boundary between talus and rock in situ can be identified. This method is particularly useful when the upper portion of the rock in situ is broken and weathered and it has been applied with success to a scarp in the dolerite of the Western Tiers in Tasmania. Here the results suggest that in the upper part of the talus the jointed blocks have definitely fallen into a sub-horizontal position, whereas at lower levels they are only slightly tilted."

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