Playa Sedimentology and Geomorphology: Mixture Modelling Applied to Landsat Thematic Mapper Data of Chott El Djerid, Tunisia
Published:January 01, 1994
Nick A. Drake, Robert G. Bryant, Andrew C. Millington, John R. G. Townshend, 1994. "Playa Sedimentology and Geomorphology: Mixture Modelling Applied to Landsat Thematic Mapper Data of Chott El Djerid, Tunisia", Sedimentology and Geochemistry of Modern and Ancient Saline Lakes Models, Robin W. Renaut, William M. Last
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Linear mixture modelling was applied to a multidate sequence of seven Landsat TM images of Chott el Djerid, Tunisia. This enabled proportions maps of four surface materials—gypsum, halite, clastic sediment and water—to be calculated. Mean patterns of these four surface materials were analyzed, and the modelling method also provided information on their spatial and temporal variability. Multidate mixture modelling has significant advantages over traditional image processing methods applied to Landsat Thematic Mapper imagery, in the context of mapping the sedimentological zonation on playas and in identifying active geomorphological processes.
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Sedimentology and Geochemistry of Modern and Ancient Saline Lakes Models
Sedimentology and Geochemistry of Modern and Ancient Saline Lakes - This volume of papers grew out of a four-day symposium entitled ?Sedimentary and Paleolimnological Records of Saline Lakes? held at Saskatoon, Canada in August, 1991. The aim of this Special Publication is to bring together selected papers from this conference that deal specifically with the sedimentological, inorganic geochemical, and hydrological aspects of salt lakes and their stratigraphic records. This volume is divided into four sections. The first section contains papers that deal with modern saline lakes. The second section contains papers dealing with sedimentation and diagenesis of late Quaternary salt lakes. The third and fourth sections contain papers devoted to ancient (pre-Quaternary) Lacustrine sequences.