Abstract
Three major dune-forming episodes are inferred in western parts of Rajasthan Desert. Massive and large-sized oldest dunes show crescentic, stabilised megabarchanoids or transverse, draas formed by stronger intensity southerly to southeasterly winds. These draas were transformed into linear and parabolic dunes through aeolian scouring and superimposed accretion of second and subsequent generations. The youngest aeolian reactivation here is represented by selective deflation and depositional linear arrays of active small barchans, vegetation-induced aeolian accumulations and prograding sand sheet Dune trends of younger-evolved forms suggest establishment of the southwesterly sand-moving wind circulation patterns during second-generation aeolian episode and its persistence of directional flows though with significantly lesser intensity into the contemporary wind regime in the area.
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Wadhawan, S.K. Dune dynamics and evolution of aeolian landforms in parts of Jaisalmer district, Rajasthan, India. J Indian Soc Remote Sens 22, 65–77 (1994). https://doi.org/10.1007/BF03023876
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DOI: https://doi.org/10.1007/BF03023876