Landsat Thematic Mapper observations of debris avalanche deposits in the Central Andes

  title={Landsat Thematic Mapper observations of debris avalanche deposits in the Central Andes},
  author={Peter W. Francis and Gordon L. Wells},
  journal={Bulletin of Volcanology},
Remote sensing studies of the Central Andean volcanic province between 18°–27°S with the Landsat Thematic Mapper have revealed the presence of 28 previously undescribed breached volcanic cones and 14 major volcanic debris avalanche deposits, of which only 3 had previously been identified. Several of the debris avalanche deposits cover areas in excess of 100 km2 and have volumes of the order of 10 km3. H/L ratios for the deposits have a median of 0.1 and a mean of 0.11, values similar to those… 

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