Gully formation in the McMurdo Dry Valleys, Antarctica: multiple sources of water, temporal sequence and relative importance in gully erosion and deposition processes James L. Dickson James W. Head Joseph S. Levy Gareth A. Morgan David R. Marchant 10.6084/m9.figshare.5621344.v1 https://geolsoc.figshare.com/articles/media/Gully_formation_in_the_McMurdo_Dry_Valleys_Antarctica_multiple_sources_of_water_temporal_sequence_and_relative_importance_in_gully_erosion_and_deposition_processes/5621344 Channel activity within Gully B yielding <i>c</i>. 80 cm of vertical erosion over the course of 6 days in December 2010. Vantage point shown in Figure 4b (Site 2). 2017-11-21 16:24:08 Gully formation McMurdo Dry Valleys deposition processes Channel activity 6 days sequence source 80 cm importance Gully B Figure 4 b Site gully erosion December 2010. Vantage point Geology