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Why deposits of longitudinal dunes are rarely recognized in the geologic record

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David M. Rubin, and Ralph E. Hunter, 1985, Why deposits of longitudinal dunes are rarely recognized in the geologic record: Sedimentology, v. 32, iss. 1.

Summary

Dunes that are morphologically of linear type, many of which are probably of longitudinal type in a morphodynamic sense, are common in modern deserts, but their deposits are rarely identified in aeolian sandstones. One reason for non-recognition of such dunes is that they can migrate laterally when they are not exactly parallel to the long-term sand-transport direction, thereby depositing cross-strata that have unimodal cross-bed dip directions and consequently resemble deposits of transverse dunes. Dune-parallel components of sand transport can be recognized in ancient aeolian sands by examining compound cross-bedding formed by small dunes that migrated across the lee slopes of large dunes and documenting that the small dunes migrated [...]

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Author :
David M. Rubin, Ralph E. Hunter
Publisher :
Wiley

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Harvested on Thu Feb 12 15:43:30 MST 2015 from MODS XML Service

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Type Scheme Key
local-index unknown 70135813
local-pk unknown 70135813
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1111/j.1365-3091.1985.tb00498.x
series unknown Sedimentology

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journalSedimentology
parts
typevolume
value32
typeissue
value1
languageEnglish
citationTypeArticle

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