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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Internal Structures in Eolianites and Paleowinds, Mediterranean Coast, Israel
D. H. Yaalon, Jonathan Laronne
ABSTRACT
Measurements of 609 inclination angles and azimuth directions at seven sites on the coastal eolianites of Israel indicate that about half of the crossbedded eolianite body is composed of steep avalanche bedded slipface laminae. About 10% are windward facing sets and the rest gentle leeward facing sets. The overall modal direction is in good agreement with the present, prevalently westerly and southwesterly wind regime.
Shear stress differences seem responsible for the particle size sorting and lamination both on the rippled and slipface surfaces of the dunes. The proportion of steep avalanche bedded cosets seems to be a characteristic of the type of dune, decreasing in the order barchans > transverse ridges > seifs.
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