Geophysical, Sedimentological, and Photographic Data from the John Day Reservoir, Washington and Oregon: Data Archive and Preliminary Discussion USGS Open-File 2004-1014 HOME | CONTENTS | GEOLOGIC DISCUSSION | DATA/GIS | METADATA | REFERENCES | CONTACTS |
Table of Contents:OF 2004-1014Disc Contents
Geologic
|
Figure 13. Click in figure for larger image. High-resolution seismic-reflection profiles across an area where sidescan-sonar imagery and bottom photographs indicate sediment has accumulated since impoundment. The fact that this deposit cannot be resolved on the seismic-reflection profiles indicates that the deposit is less than 25-50 cm thick. Location shown in Figure 3. |