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spectroscopic characterization of el-oued sand dunes

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Academic year: 2021

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Figure I.1: Dunes on Titan seen in Cassini’s radar (a) that are similar to Namibian  sand dunes on Earth [3]  (b) .
Table I.1:The Chemical analysis of sand samples taken from various regions around the world [1] [23]
Figure I.4: Chart for estimating the roundness based upon comparisons with particles of  known roundness
Figure I.5: The stability fields of some silica polymorphs  [11]
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