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sedimentary structures

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3 - Dune Sediments
from Part II - Dune Morphology and Sediments
Nicholas Lancaster
Book:

Geomorphology of Desert Dunes

Published online:

03 March 2023

Print publication:

23 March 2023, pp 49-84
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Summary

Dune sediments provide a record of dune accumulation and can therefore provide important information on the processes of dune formation and development. The mineral composition of dune sands can in addition indicate sand sources and transport pathways. Studies of dune sedimentary structures have yielded a wealth of information on the fundamental processes of dune accumulation and shown that dunes are composed of varying proportions of wind ripple, grainfall, and grainflow deposits, the proportions of which vary between dune types.