U.S. Geological Survey Open-File Report 2009-1137
Quaternary Geologic Framework of the St. Clair River between Michigan and Ontario, Canada
Figure 14. Total Quaternary sediment thickness (Qd and Qu combined) in the northernmost St. Clair River area. The black line shows the location of the geologic section A-A’ (fig. 12). Grid-cell size is 20 m x 20 m. (2005 orthophoto base from Michigan State University, Remote Sensing & GIS Research and Outreach Services, USDA-FSA Aerial Photography Field Office.) |