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What is saltation in geology?
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In geology, saltation (from Latin saltus 'leap, jump') is a specific type of particle transport by fluids such as wind or water. It occurs when loose materials are removed from a bed and carried by the fluid, before being transported back to the surface.
Jun 27, 2021 · Saltation is the dominant mode of particle movement when a strong wind blows over a sand surface. Except in the very strongest winds, the saltation heights attained by the saltating grains seldom exceeds a meter, and the saltation lengths are mostly less than a few meters.
The characteristic mode of motion of sand particles in air is saltation: particles are launched from the bed, take arching trajectories of widely varying heights and lengths, and splash down onto the bed at low angles, commonly rebounding and/or putting other particles into motion.
Deposition is the laying down of sediment carried by wind, flowing water, the sea or ice. Sediment can be transported as pebbles, sand and mud, or as salts dissolved in water. Salts may later be deposited by organic activity (e.g. as sea shells) or by evaporation.
INTRODUCTION. Streams—any running water from a rivulet to a raging river—complete the hydrologic cycle by returning precipitation that falls on land to the oceans (figure 1). Some of this water moves over the surface and some moves through the ground as groundwater. Flowing water does the work of both erosion and deposition. Figure 1.
In geology, saltation (from Latin, saltus, "leap") is a specific type of particle transport by fluids such as wind or water. It occurs when loose material is removed from a bed and carried by the fluid, before being transported back to the surface.
Jun 27, 2018 · Saltation is the transportation of sand grains in small jumps by wind or flowing water . The term does not refer to salt, but is derived from the Latin saltare, to dance. Certain conditions are necessary for saltation. First, a bed of sand grains must be covered by flowing air or water, as in a streambed or windy desert .
