text: Physical weathering, probably freeze and thaw.  (Frost heaving is the lifting up of soil by frost.  In this case, the frozen water wedged the rock loose from the bedrock.)\nColluvial transport.\n\n"What's Up Doc" is a screwball comedy (a kind of movie) about a college professor who investigates the musical tones of igneous rocks.  It stars Ryan O'Neal and Barbara Streisand.  It is very funny.