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The AAPG/Datapages Combined Publications Database
Journal of Sedimentary Research (SEPM)
Abstract
Offshore Shoals in Area of Energy Deficit
William F. Tanner
ABSTRACT
The coastal energy level off the Apalachicola River Delta (panhandle coast of Florida) appears to be adequate to handle approximately 2 104m3 of sand and coarse silt per year. The river, through much of its recent history, has probably been delivering approximately 5 105m3 of bed load per year. Over a 5000 year period, this projects to an excess of approximately 2.5 109m3. The beach ridges, barrier islands, and furrowed offshore shoals in the area may have been formed as severe storm waves redistributed this load. The amount of sand stored in these geomorphic feat res is estimated to be approximately equal to the projected 5000-year excess.
An energy-vs-load chart is presented as an aid in the evaluation of coastal features.
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