![](https://webarchive.library.unt.edu/eot2008/20090509071312im_/http://www.nsf.gov/images/x.gif) News From the Field Preserved by Ice: Glacial Dams Helped Prevent Erosion of Tibetan Plateau
![](https://webarchive.library.unt.edu/eot2008/20090509071312im_/http://www.nsf.gov/images/greenlineshort.jpg)
October 8, 2008
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New research suggests that the edge of the Tibetan plateau might have been preserved for thousands of years by ice and glacial debris at the mouth of many tributaries to the Tsangpo River. Those deposits appear to have acted as dams that prevented the rapidly traveling Tsangpo from carving upstream into the plateau.
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Source University of Washington
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