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Contemporary fluvial geomorphology and suspended sediment budget of the partly confined, mixed bedrock-alluvial South River, Virginia, USA

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James Pizzuto, Michael A. O’Neal, Pramenath Narinesingh, Katherine Skalak, Dajana Jurk, Suzann Collins, Jacquelyn Calder; Contemporary fluvial geomorphology and suspended sediment budget of the partly confined, mixed bedrock-alluvial South River, Virginia, USA. GSA Bulletin doi: https://doi.org/10.1130/B31759.1

Summary

We developed a conceptual model and suspended sediment budget for a 38 km reach of the fifth-order South River, Virginia, for the past 75 yr. Bedrock, terraces, and alluvial fans confine 64% of the channel’s lateral boundaries, while bedrock exposures impose vertical confinement along 37% of the channel. Bedrock exposures in the bed separate pools and riffles developed in gravelly bed material, create unusual kilometer-long pools, and divide the study area into a gently sloping upstream reach and a steeply sloping downstream reach. Bedrock exposures upstream and downstream of an alluvial monitoring site limit changes in bed elevation (documented by scour chains and repeat surveys) by flows with up to 10 yr return periods. Fifty-seven [...]

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Type Scheme Key
local-index unknown 70198743
local-pk unknown 70198743
doi http://www.loc.gov/standards/mods/mods-outline-3-5.html#identifier doi:10.1130/B31759.1
series unknown GSA Bulletin

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journalGSA Bulletin
parts
typevolume
value130
typeissue
value11-12
languageEnglish
citationTypeArticle

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