Keywords: RipplemarksCarmelFormation.jpg en Ripplemarks in a biosparite/grainstone Carmel Formation Middle Jurassic near Gunlock Utah Own Wilson44691 2008-07 Photograph taken by Mark A Wilson Department of Geology The College of Wooster http //www3 wooster edu/geology/MWilson html Ripple marks Sedimentary rocks Carmel Formation Geological hammers |