Australia; WA; TAS
The geology underlying some of Antarctica’s most dynamic ice streams could increase their vulnerability to rapid ice retreat and ice loss, according to Australian research. The study mapped the geology underneath the ice in Antarctica and found the likely location of sedimentary basins - low-lying areas in the Earth’s crust that can contain lots of groundwater. When Glaciers retreat, these sedimentary basins can discharge groundwater under the ice and that water can increase the rate at which ice is lost. The research found there are sedimentary basins in some of Antarctica’s most dynamic ice-sheet catchments, including the Amundsen Coast and Siple Coast regions in West Antarctica, and Wilkes Land and the Recovery regions in East Antarctica.
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