(current or waves) or directly by wind. Current ripple marks, unidirectional ripples, or asymmetrical ripple marks are asymmetrical in profile, with a gentle...

wave-formed ripples or wave-formed ripple marks are a feature of sediments (sandstones, limestones, siltstones) and dunes. These ripple marks are often...

thick. Sedimentary structures such as cross-bedding, graded bedding, and ripple marks are utilized in stratigraphic studies to indicate original position of...

step response Polarization ripples, appearing after irradiation of a solid by energy flux (laser, ions, etc.) Ripple marks, as identified in sediments...

Ayrton, born Phoebe Sarah Marks, she was awarded the Hughes Medal by the Royal Society for her work on electric arcs and ripple marks in sand and water. Hertha...

Giant current ripple marks are large scale analogues of small current ripples formed by sand in streams. Giant current ripple marks are important features...

individual outcrop). In sedimentary rocks this may include sole markings, ripple marks, mudcracks and cross-bedding. These are recorded as they are generally...

Mark Ripple was an American money manager, expert horse racing handicapper, and author of Handicapping the Wall Street Way. He was frequently sought after...

communities to the south at risk. The volcano is also known for giant ripple marks that have formed on its ignimbrite fields. Persistent wind action on...

coastal sand dunes near the shoreline of the ancient Pedregosa Sea. Ripple marks are prominent along the lower Cathedral Rock trail, and a black basalt...