Summary Information for Field Activity 2008-016-FA

Area of Operations: St. Clair River, Lake Huron, Michigan, Ontario, United States, Canada, North America

Dates: May 29, 2008 to June 02, 2008

Chief scientist: Dave Foster

U.S. Army Corps of Engineers, IJC

Objectives: WHSC/SFMG will map the geologic framework of the upper St. Clair River and surficial geology of the river/lake bed. Stratigraphic mapping will include depth to bedrock and the stratigraphy of Quaternary glacial and post glacial deposits. Surficial mapping will delineate sediment texture and morphology of the river/lake bed. The geologic framework will support ongoing studies that are quantifying changes in river bed elevation, specifically, identifying the extent of river bed erosion. Geophysical systems will be deployed to acoustically image the geologic framework. Video, photography and sampling of the river bed will be used to verify the surficial geologic interpretation.

Type of Activity: Sampling; Seismic profiling; Sea floor mapping; Photography;Sea floor mapping

Information to be derived: Samples and chemical analysis; Sea floor map; Bathymetric maps; Morphology;

Summary: Data were collected over a five day period. Data include seismic reflection profiles: 79.8 km of 3.5 kHz Chirp data recorded in SEG-Y format, 58.5 km of Boomer seismic reflection profiles recorded in SEG-Y format, 79.8 km of Submetrix bathymetric data, 79.8 km of Klein sidescan sonar data in XTF format, 453 digital bottom photographs in JPEG format, 310 minutes of bottom video, and 17 bottom sediment samples.

Contact: Dave Foster (dfoster@usgs.gov)

InfoBank: uses the identifier R-16-08-MW. Visit this site for more information.

Related Links:

- Download 08016.kml to view this field activity in Google Earth

Platform Info:

RAFAEL

Publications resulting from these data

Foster, David S., and Denny, Jane F.,2009, Quaternary geologic framework of the St. Clair River between Michigan and Ontario, Canada: U.S. Geological Survey Open-File Report 2009-1137. (Also available at http://pubs.usgs.gov/of/2009/1137/)

Denny, J.F., Foster, D.S., Worley, C.R., and Irwin, B.J.,2011, Geophysical data collected in the St. Clair River between Michigan and Ontario, Canada (2008): U.S. Geological Survey Open-File Report 2010-1035, online with pdf. (Also available at http://pubs.usgs.gov/of/2010/1035/.)

Data Types and Locations:

Bathymetry

Navigation

Logs

Photos

Samples

17 bottom sediment samples

Seismics

SIOSeis was used to apply a 1-2-1 trace mix and t square gain (Sioseis type 3, alpa 1.75) before writing ieee floating point SEG-Y files.

SioSeis was used to apply a bandpass filter of 500-2000 Hz and an AGC with a window of 20 ms before writing to SEG-Y files.

Sonar

Video