Avalanche Mode of Motion: Implications from Lunar Examples

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Science  08 Jun 1973:
Vol. 180, Issue 4090, pp. 1052-1055
DOI: 10.1126/science.180.4090.1052


A large avalanche (21 square kilometers) at the Apollo 17 landing site moved out several kilometers over flat ground beyond its source slope. If not triggered by impacts, then it was as "efficient" as terrestrial avalanches attributed to air-cushion sliding. Evidently lunar avalanches are able to flow despite the lack of lubricating fluid.