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Table of Contents:

OF 2004-1014

Disc Contents

Geologic
    Discussion

• Introduction

• Field Program

• Field Equipment

• Interpretation

• Discussion

• Summary

• Acknowledgments

Data/GIS

Metadata/Data
    Catalog

References Cited

Contacts

Figure 8. Click in figure for larger image. Sidescan-sonar image (top panel), photographs from 2000 of boulders, mud, and gravel with a mud cover (middle panel), and pre-impoundment aerial photo-mosaic (bottom panel) of the same area shown in the sidescan-sonar image. The bottom photographs support the sidescan-sonar interpretation: boulders (photo 12) were found in the part of the sidescan-sonar image that is speckled, mud (photo 11) is found in low-backscatter areas, and gravel and cobbles covers the surface of a bar. Note that the station labeled 7 was subaerially exposed prior to completion of the dam, and now shows on the sidescan-sonar as low backscatter suggesting a continuous cover of fine sediment. Location shown in Figure 3.