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Miêu tảIcemvmt.gif	English: :The Antarctic meteorites have been concentrated in certain location, but the mechanism of concentration is not completely understood. A leading hypothesis is that the meteorites fell on snowfields where ice thickness increases, flowed toward the edge of the Antarctic Continent, and became exposed where the iceflow is impeded by obstacles and where the ice is ablated. The wind continually ablates the ice surface in the areas of meteorite concentration, removing ice by sublimation and mechanical abrasion. In order to measure the amount of ablation, a series of stakes has been emplaced and accurately surveyed with respect to a base station on rock outcrops. Ablation rates have been as high as 10 centimeters per year. (From File:Icemvmt.png)
Ngày	1997
Nguồn gốc	https://web.archive.org/web/20050404034302/https://www-curator.jsc.nasa.gov/curator/antmet/program.htm
Tác giả	(People mentioned on https://web.archive.org/web/20050404034302/https://www-curator.jsc.nasa.gov/curator/antmet/program.htm?)

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

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