Effect of Late Holocene sea level change and deltaic lobe-shifting, Apalachicola Delta, northwest Florida

Conference · Mon Mar 01 00:00:00 EST 1993 · Geological Society of America, Abstracts with Programs; (United States)

OSTI ID:6112680

Donoghue, J F ^[1]; White, N M ^[2]

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1. Florida State Univ., Tallahassee, FL (United States). Geology Dept.
2. Univ. of South Florida, Tampa, FL (United States). Dept. of Anthropology

Late Holocene environmental changes in the lower Apalachicola River region of the northwest Florida appear to be related to deltaic lobe-shifting and sea level change. Sedimentologic, archaeologic and seismic evidence all indicate a major shift in deltaic deposition approximately 2,000 years ago. The effect is observed in the mid-region of the modern Apalachicola Delta as a pronounced change from estuarine to freshwater conditions. On the barrier island chain flanking the delta the result was a change in depositional patterns with a shift in the sediment supply.

• OSTI ID: 6112680
• Report Number(s): CONF-9304188-; CODEN: GAAPBC
• Journal Information: Geological Society of America, Abstracts with Programs; (United States), Vol. 25:4; Conference: 42. annual Geological Society of America (GSA) Southeastern Section meeting, Tallahassee, FL (United States), 1-2 Apr 1993; ISSN 0016-7592
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES
COASTAL REGIONS
PALEOCLIMATOLOGY
FLORIDA
ESTUARIES
GEOLOGIC HISTORY
ISLANDS
RIVER DELTAS
SEDIMENTATION
DEVELOPED COUNTRIES
NORTH AMERICA
PALEONTOLOGY
SURFACE WATERS
USA
580000* - Geosciences