Metaglossary.com - Definitions for "{term}"

Keywords: leap, bounce, saltus, jumps, geology

A leaping or jumping.

ftp.uga.edu

The movement of sand or fine sediment by short jumps above the ground or streambed under the influence of a current too weak to keep it permanently suspended.

whfreeman.com

A term used to describe the movement of a particle being transported by wind or water which is too heavy to remain in suspension. The particle is rolled forward by the current, generates lift and rises, loses the forward momentum supplying the lift and settles to the floor, where the process is repeated. The size of the particles which can be saltated depends upon the velocity of the current and its density, e.g., water will saltate larger particles than air at the same velocity.

ecy.wa.gov

The process of bouncing of grains along a surface by flowing air (wind) or water.

ruby.colorado.edu

A leap. It was once thought that evolution proceeded by occasional large jumps, rather than by smooth gradation from generation to generation. We now have examples of both, and there is occasional debate about how often saltation happens. Note that we are not talking about a dog turning into a cat. A saltation is more on the order of one extra pair of ribs.

don-lindsay-archive.org

The transportation of particles in a current of wind or water by a series of bouncing movements.

imnh.isu.edu

Subject: The Earth The bouncing movement of sand and small particles along the surface due to the wind.[ Pics List

ngdir.ir

movement of individual particles as variable leaps or jumps powered by wind or water; a "roll-and-bounce" motion.

tc.umn.edu

(geology) the leaping movement of sand or soil particles as they are transported in a fluid medium over an uneven surface

wordnet.princeton.edu

an abrupt transition; "a successful leap from college to the major leagues"

wordnet.princeton.edu

the wind-driven movement of particles along the ground and through the air.

galeschools.com

Little pieces of gravel and sand bounce along the riverbed in a series of short hops as the river picks them up then drops them again because they are not light enough to be kept afloat.

swgfl.org.uk

pebbles, sand and gravel are lifted up by the current and bounced along the bed.

s-cool.co.uk

The transport of sediment in short jumps and bounces above the stream bed or ground by a current that is not strong enough to hold the sediment in continuous suspension. (See suspension and traction for comparison.)

geology.com

The movement of a sediment in which grains bounce along their substrate, knocking other grains into the water column (or air) in the process.

wwnorton.com

the transportation of particles by currents of water or wind in such a manner that they move along in a series of short intermittent leaps

grida.no

A momentum-dependent transport involving the rolling, bouncing or jumping action of soil particles 0.1 to 0.5 mm in diameter by wind, usually at a height 15 cm above the soil surface, for relatively short distances.

nrm.gov.au

The transport of small soil particles just above the soil surface by wind.

128.121.182.245

Saltation is derived from Latin meaning to jump or leap from place to place. In evolutonary studies saltation means rapid change wherein species seem to evolve from rapid jumps. Now, it is easy to confuse this with the idea of the periods of rapid evolution proposed by punctuated equilibrium. During these periods evolution occurred much more quickly than during periods of 'stasis', when evolution occurred relatively very slowly. But what saltation really implies is evolution that occurred extremely rapidly by major macromutations giving rise to Richard Goldschmidt's 'hopeful monsters'. (The material Basis of Evolution — 1940). This idea implies bridgeless gaps between species, major differences from one generation to the next. I don't thnk any true evolutionist still accepts this concept because there are simply too many ways it could go wrong.

137.122.14.197

In biology, saltation (from Latin, saltus, "leap") is a sudden change from one generation to the next, that is large, or very large, in comparison with the usual variation of an organism. The term is used for occasionally hypothesized, nongradual changes (especially single-step speciation) that are atypical of, or violate, standard concepts involved in neo-Darwinian evolution. The unorthodox emphasis on saltation as a means of evolutionary change is called saltationism.

en.wikipedia.org

In geology, saltation (from Latin, saltus, "leap") is a specific type of particle transport by fluids. It occurs when loose material is removed from a bed and carried by the fluid, before being transported back to the surface. Examples include pebble transport by rivers, sand drift over desert surfaces, soil blowing over fields, or even snow drift over smooth surfaces such as those in the Arctic or Canadian Prairies.

en.wikipedia.org

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Keywords: drastically, mutation, morphology, niche, asexual

An abrupt and marked variation in the condition or appearance of a species; a sudden modification which may give rise to new races.

ftp.uga.edu

A single mutation that drastically alters the appearance of an organism.

newcreationism.org

(1) The evolution of new species by sudden, discontinuous steps. (2) A radical and discontinuous reorganization of morphology in a single generation (e.g. through mutation), resulting in a population successfully occupying a new and substantially different ecological niche.

els.net

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Keywords: quantavolution, see

see Quantavolution

grazian-archive.com

Keywords: sandstorm, see

See sandstorm.

amsglossary.allenpress.com

Keywords: vaultation, erosion, synonym, see

Synonym: vaultation. See Erosion.

jan.ucc.nau.edu

Keywords: palpitation, beating, great, artery