Ventifact forms when: a. wind borne particles abrade surface of a rock. ... a.
deflation hollows or blowouts: shallow depressions resulting from differential ...
dry surface with little vegetation, constant wind direction, limited supply of sand;
small-max .... Marine air forced upwards by mountain range, forms clouds that
Sep 9, 2009 ... Seasonal variations on Venus are negligible because of its small ... Trade-wind
deserts are sometimes referred to as low-latitude deserts. .... Desert lakes (playas
) are generally shallow, temporary, and salty. ... A blowout, which is a deflation
basin, is a hollow formed by the removal of particles by wind.
Nov 1, 2011 ... Wind blowing over the solid surface of the lands is also an active ... of the ground,
because it is only able to move small dry particles. ... The rate of deflation
depends on the force of the wind, the nature of the rock and ... Deflation
sometimes leads to the formation of depression or hollows on the land surface.
Mechanical weathering-rocks break down into smaller pieces by physical ... rock;
Ice, plants, animals, gravity, running water, wind; Physical changes may ...
Produced naturally by certain living organisms; Lichens and mosses ... Deflation-
wind removes top layer of fine, very dry soil or rock particles and ... Deflation
 Wind-related features observed by the rover Spirit in Gusev crater, Mars,
include patches of soil on ... materials lowered onto other rocks by deflation of
supporting soils. .... includes a shallow moat-like area at the base of the hills, .....
Pancam views: (a) across a small ''hollow'' toward CMS (southeast) imaged...
Sep 30, 1977 ... Wind tails are elongated in southerly directions. Small deflation hollows
produced by wind erosion are common on the north- ern sides of rocks. ... eroded
the surface, dislodged small rocks, produced fillets of debris on the sides of .....
from the retroengines, shallow craters beneath individual en-. TABLE 3.
The wind in Kuwait is an active agent of the erosion of rock and soil ... Deflation
hollows constitute shallow depressions that are carved out in both ... of quartz
grains with smaller amounts of feldspars, fragments of volcanic rocks, calcrete
In Australia and South Africa small playas are generally referred to as pans. ...
Wind deflation can produce shallow basins with downwind dunes, as in ...
Abrasion notch An elongated cliff-base hollow (typically 1-2 m high and up to 3m
recessed) cut out by .... broad shallow channels, and comparable to a sand dune.
... arid areas with wind erosion, creates a tunnel through a slab of rock. ...
Avalanche tarn Small water-filled depression produced by repeated avalanche
alluvial fan – A low, outspread mass of loose materials and/or rock material,
commonly ... (b) (not preferred) A general term for a small flood plain bordering a
river, .... flank of a volcano or along the surface of the ground; produced by the
explosive ...... deflation basin – A topographic basin excavated and maintained
by wind ...