Why are star dunes rarely recognised in the rock record?
Charles Bristow,
Geoff Duller
Abstract:Star dunes are the tallest dunes on Earth and are amongst the largest and most spectacular dynamic landforms. Although they are widespread in modern sandy deserts star dunes are rarely recognised in the rock record probably due to a lack of suitable models. This stratigraphic study of a star dune in the Sahara Desert shows that the dune has developed recently and grown rapidly to create a 100 m high dune within the past thousand years. At the base of the dune there is a period of around eight thousand years th… Show more
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