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Open-File Report 03-088

OVERVIEW FACS

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Activity ID: 01RCE02
USGS CMG FACS Overview Log
Topic
Information
USGS Activity ID
01RCE02 (River Contaminant Evaluation)
Other ID (if any)

 

Organization
USGS
Project
Evaluate basin/shelf effects in the delivery of sediment-hosted contaminants in the lower Atchafalaya and Mississippi rivers.
Area of Operation
Mississippi Delta (South Pass & Garden Bay), Atchafalaya River, Atchafalaya Delta
Chief Scientist(s)
James Flocks
Information Specialist(s)
Gina Peery
Activity Type
Hi-Res Seismic, Chirp, Sidescan & Vibracores
Scientific Purpose/Goals
To evaluate the storage and transport of particle reactive, environmentally relevant contaminants through the Mississippi River and Atchafalaya River delta complexes to the near-shore Gulf of Mexico.
Platform
R/V G. K. Gilbert
Starting Date
April 25, 2001, JD115
Starting Port
Venice, Louisiana
Ending Date
May 5, 2001, JD125
Ending Port
Morgan City, Louisiana
Equipment Used
Boomer
Chirp
Sidescan
Vibracore

Information to be Derived (e.g., Grain Size, Depth to Basement)

Geophysical data are being used to determine sediment distribution and thickness and to locate sample sites. Sediment cores will be used to evaluate the distribution and concentrations of key contaminants.

Summary of Activity and Data Gathered

Collected 10 single-channel boomer seismic lines and 6 chirp lines in the Mississippi River delta. Collected 5 boomer seismic-lines and 5 chirp lines in the Atchafalaya River delta. 7 Vibracore samples were also taken from the Atchafalaya delta.
Notes

 


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