Gully formation in the McMurdo Dry Valleys, Antarctica: multiple sources of water, temporal sequence and relative importance in gully erosion and deposition processes
mediaposted on 21.11.2017 by James L. Dickson, James W. Head, Joseph S. Levy, Gareth A. Morgan, David R. Marchant
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Close-up of punctuated activity in Gully A during December 2010, showing c. 10 cm of fan emplacement and several metres of lateral erosion of pre-existing fan material. Vantage point shown in Figure 4c (Site 3).