wind-ripple marks

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• Ripple marks — Ripple Rip ple, n. 1. The fretting or dimpling of the surface, as of running water; little curling waves. [1913 Webster] 2. A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter. [1913 Webster] {Ripple… …   The Collaborative International Dictionary of English

• Ripple marks — Ancient wave ripple marks in sandstone, Moenkopi Formation, Capitol Reef National Park, Utah …   Wikipedia

• ripple marks — plural noun a system of parallel wavy ridges and furrows left on sand, mud, or rock by the action of water or wind …   English new terms dictionary

• Ripple — Rip ple, n. 1. The fretting or dimpling of the surface, as of running water; little curling waves. [1913 Webster] 2. A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter. [1913 Webster] {Ripple grass}.… …   The Collaborative International Dictionary of English

• Ripple grass — Ripple Rip ple, n. 1. The fretting or dimpling of the surface, as of running water; little curling waves. [1913 Webster] 2. A little wave or undulation; a sound such as is made by little waves; as, a ripple of laughter. [1913 Webster] {Ripple… …   The Collaborative International Dictionary of English

• ripple mark — Geol. 1. one of the wavy lines or ridges produced, esp. on sand, by the action of waves, wind, or the like. 2. one of such forms preserved in sandstone or siltstone. [1825 35] * * * One of a series of small marine, lake, or riverine features,… …   Universalium

• Wind turbine — Offshore wind farm using 5MW turbines REpower 5M in the North Sea off Belgium This article discusses wind powered electrical generators. See windmill for wind powered machinery used to grind grain or pump water. A wind turbine is a device that… …   Wikipedia

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

• Geology of the Capitol Reef area — [ Waterpocket Fold is the major geographic feature in the area of the park. This view is from above Capitol Reef Scenic Drive looking back at the west face of the broken and eroded fold.] The exposed geology of the Capitol Reef area presents a… …   Wikipedia

• Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …   Wikipedia

• Wave-formed ripples — [ water ripple marks in sandstone, Moenkopi Formation, Capitol Reef National Park, Utah] In sedimentology, wave formed ripples or wave formed ripple marks are a feature of sediments (sandstones, limestones, siltstones) and dunes. These ripple… …   Wikipedia