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Deposition

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Deposition is the Geology process by which material is added to a landform or land mass.

 


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CHEMICAL VAPOR DEPOSITION (CVD) - Method for growing solids in which a gaseous precursor (containing fragments of the desired solid) is decomposed and deposited onto a desired surface.

Chemical Vapor Deposition [McL97]
Cyanogen (CN) Bands
Molecular bands found in the spectra of stars of type G0 and later.

magnetron sputtering (NASA Thesaurus) A deposition method in which a microwave tube is utilized to confine a plasma magnetically to produce high deposition rates and a low working-gas partial pressure.

[4][5] Metal Organic Chemical Vapor Deposition (MOCVD, or OMCVD) production equipment was not developed until the early 1980s, limiting the ability of companies to manufacture the GaAs solar cell.

Specifically, MARIE will determine the energy deposition spectrum from 0.

Scientists study this area to learn about the fundamental processes in magmatism, hydrothermal systems, and ore deposition.

This Mars Global Surveyor image demonstrates the theme of erosion, deposition, and then more erosion. The circular feature is interpreted to be an ancient impact crater.

Relatively narrow, discontinuous ridges are usually found radial to extremely large impact craters (called basins) and are often accompanied by intervening valleys; they represent impact-induced radial faulting and radial deposition and grooving ...

It is believed that each depression underwent several episodes of water partially filling low-lying regions leading to the deposition of minerals.

Later on in the process polysilicon gates are deposited by chemical vapor deposition, patterned with photolithography, and etched in such a way that the separately phased gates lie perpendicular to the channels.

The accumulation of ice or snow from vapor is called deposition. During deposition, gaseous water molecules coalesce to form tiny stalagmite-like structures on cold surfaces where ice crystals can grow.

Lyell argued that the face of the Earth had changed gradually over long periods of time through the continuing, cumulative effects of local disturbances, such as eruptions, earthquakes, erosion, and deposition.

Today, however, Mars is a windblown desert. Vast expanses of sand dunes and other wind-formed erosional features abound, all attesting to the efficacy of both depositional and erosional wind processes present in the current Mars environment.

In addition to the heavily cratered terrain, Mercury also has regions of relatively smooth plains. Some may be the result of ancient volcanic activity but some may be the result of the deposition of ejecta from cratering impacts.

Supernovae of Type I, novae and cataclysmic variable stars are all cases where the companion to a white dwarf star has reached a point in its evolution where it is increasing in diameter and losing mass to the white dwarf. The deposition of material ...

However, during March and April 1984, A.L.P.O. observers reported that northeastern M. Sirenum had weakened considerably, possibly as a result of dust deposition from the storms sighted earlier in that region [Capen, 1986].

See also: Time, Second, Period, Earth, Year