Can someone rephrase this sentence so that i can understand it.?

The reasoning is that faults in volcaniclastics and breccias can gouge the rock surfaces, producing characteristic marks, including striations, ridges and grooves, crescentic scours around projections, and "stoss and lee" effects such as "rat tails" behind boulders, and these marks are comparable to drumlins and elongated low profile flutings.