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The AAPG/Datapages Combined Publications Database

CSPG Special Publications


Fluvial Sedimentology — Memoir 5, 1977
Pages 587-596
Fluvial Facies Models

A Quantitative Stratigraphic Model for Alluvium, with Special Reference to Channel Deposit Density and Interconnectedness

M. R. Leeder


Channel deposit density and interconnectedness within a ‘matrix’ of overbank fines in stratigraphic sections through alluvium are inversely related to the rates of contemporary channel avulsion and floodplain accretion and to the width of the alluvial plain. Simulated sections through alluvium generated by random channel avulsions and residence intervals reveal spurious local concentrations of channel deposits. Such concentrations may be given misleading non-random interpretations in stratigraphic or exploration schemes based upon incomplete exposures or sparse borehole data.

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