Scientific Investigations Report 2006–5316
U.S. GEOLOGICAL SURVEY
Scientific Investigations Report 2006–5316
DOE/ID-22201
Figure 6. Distribution of thickness of total accumulated sediment in boreholes that fully penetrate individual composite units 1 through 7 and in boreholes that penetrate the oldest units 8 to 14 combined. Approximate time spans are from table 1.