wiki Word:

Deposition

 

 

 

 

 

 

Definition:  Particles that are carried by wind or water until they stop and settle.

 

 An example of Deposition: When a meteoroid flys into the atmosphere and hits the earth, small particles come loose and are carried away by the wind (or water) until they settle.

 

Another example of this is a river, which as it moves more rapidly can pick up bigger and bigger sediments-sometimes even boulders.

More often, though, it just picks up grained-sized sediments and after the river slows down they get deposited.

 

 Deposition can also settle in fine layers like dust.  

Streaks that seem to be "flying" out behind an impact crater, (seen below) were formed by deposition.

 

 

 

 

 

 ''This Mars Global Surveyor (MGS) Mars Orbiter Camera [MOC) image shows a complex streak formed by deposition and erosion of sediment by wind in an impact crater in western Daedalia Planum.''

-An exert from an article from the magazine EuROCK, 

This image shows the process of deposition of sediments in a moving river.

Since we are learning about Mars and Mars' topography, we are also learning about craters. Craters have deposition when they hit the ground, and as well as that, sediments that have undergone deposition in dried-up riverbeds on Mars are useful for determining if there was ever water on Mars.

 

 

Deposition Streaks: Click Here

Riverbed Deposition:

Click Here

 Deposition Definition: Mrs. Flynt, Cornell Notes

 

Orginal Author:  (first name, last initial and class period)

 Zz W. 6th Period
 

 

Suggested Improvements: If you think changes need to be made to this page, please make comments below. If you just want to compliment someone on a job well done, use the comment buttom at the top of the page.

Hi Zz. Remember that deposition isn't only related to impact craters. Any time sediments are carried by a fluid like wind and water, they will eventually settle out and get deposited when that fluid slows down. This can occur in an eddy of a mountain stream; or when a river or stream dumps into a pond, lake or sea; or when sand and silt blown by the wind gets deposited on the protected down-wind side of a rock, tree, or dune. It's also improtant to note that more massive sediments and particles will settle out before the mud and silt particles -- they usually only settle out in very calm fluid conditions. Your impact crater example is excellent, however, and not an example I originally expected -- great higher-level application!!! Amazing job relating deposition to common geologic conditions on Mars!!!


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  • Recent comments:
    Jordan Lazan:heyy i used to play on ur soccer team...anyways, just change the "flys" to "flies" on your example...otherwise, nice!!
    Anonymous:Yay, thanks Delaney! I'll work on it now! ^_^
    delaney w.:Hey ZZ, looked at your web-page like you asked. it's pretty good, i'd give it an A. i would work on the definition and thecitations a little though just in case. Nice Work!!! :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-) :-)
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