Geomorphological surfaces of different age and origin in granite landscapes: An evaluation of the Schmidt hammer test

Abstract

Granite landforms in Sierra Nevada, California, and the southern part of Sweden were used to test whether a Schmidt hammer can be used to distinguish surfaces of different age and origin. Based on 3260 readings, statistically significant differences were obtained from surfaces formed and/or affected by different geomorphological processes. Aeolian, fluvial or glacially polished surfaces yield higher values than surfaces exposed to surface weathering, which are distinguishable from surfaces at a weathering front caused by deep weathering. © 2004 John Wiley and Sons, Ltd.