Bedforms of Thwaites Glacier, West Antarctica: Character and Origin

R.B. Alley, N. Holschuh, D.R. MacAyea, B.R. Parizek, L. Zoet, K. Riverman, A. Muto, K. Christianson, E. Clyne, S. Anandakrishnan & N.T. Stevens
Bedforms of Thwaites Glacier, West Antarctica both record and affect ice flow. Thwaites Glacier flows across the tectonic fabric of the West Antarctic rift system with its bedrock highs and sedimentary basins. Swath radar and seismic surveys of the glacier bed have revealed soft-sediment flutes 100 m or more high extending 15 km or more across basins downglacier from bedrock highs, and ending at prominent hard-bedded moats on stoss sides of the next topographic highs....
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