Other ID: NE-80-3
Organization(s): USGS, Woods Hole Coastal and Marine Science Center
Location: Mississippi River, Lock 26, vicinity of Alton, Illinois, United States, North America;
Principal Investigator(s): George B. Tirey
Data Type(s): Location-Elevation: Navigation, Seismics: Air Gun / Water Gun, Seismics: Multichannel
Scientific Purpose/Goals: Utilize common-depth-point (CDP), digital, and multichannel techniques to locate and map a monoclinal flexure of the Cap au Gres Fault, and demonstrate that the marine seismic system could be used for making relatively deep penetration seismic reflection surveys on shallow (less than 10 m in depth) inland waterways that have organic sediment floors.
Start Date: 1980-12-12
Start Port/Location: Venetian Harbor Marina, Portage des Sioux, MO
End Date: 1980-12-16
End Port/Location: Venetian Harbor Marina, Portage des Sioux, MO
Equipment Used: Northstar 6000 LORAN-C, Multichannel seismics, Air gun
Information to be Derived:
Summary of Activity and Data Gathered: The survey was carried out between the mouth of the Missouri River and the power plant at Portage des Sioux. There were not any faults observed on any of the monitor records made during this survey. Penetration on the monitor records was in general limited to approximately 100 to 150 ms of two-way travel time. Strong side reflections from the river banks up to 1.0 s of two-way travel time were recorded on the monitor record. As of this writing, the multichannel digital data recorded on the magnetic tapes have not been processed.
Staff: Frank W. Jennings, Paul Loud, David Nichols, George B. Tirey
Notes: Data are being processed at Denver. Original Center People field contained: Rusty Tirey, Chief Scientist; Frank Jennings, Elec. Tech.; Dave Nichols, DSF5 Tech.; Paul Loud - Boat Operator.
Tirey, G.B., Wise, Richard A., and Winget, Elizabeth A., 1984, Common-depth-point seismic-reflection survey on the Mississippi River in the vicinity of Alton, Illinois: U.S. Geological Survey Open-File Report 84-81, U.S. Geological Survey U.S. Geological Survey, 21 p. URL: http://pubs.er.usgs.gov/usgspubs/ofr/ofr8481.
Winget, E.A., and Tirey, G.B., 1984, U.S. Geological Survey common-depth-point seismic-reflection survey between Mississippi River miles 195 and 210 (R/V NEECHO, Cruise NE-80-3): U.S. Geological Survey Open-File Report 84-82, 5 p. URL: http://pubs.er.usgs.gov/usgspubs/ofr/ofr8482.