Density and velocity relationships for digital sonic and density logs from coastal Washington and laboratory measurements of Olympic Peninsula mafic rocks and greywackes
Brocher TM and Christensen NI. 2001. Density and velocity relationships for digital sonic and density logs from coastal Washington and laboratory measurements of Olympic Peninsula mafic rocks and greywackes. U.S. Geological Survey (USGS) Open-File Report. 01-264. U.S. Geological Survey. Menlo Park, CA
From the Introduction: "We present data from 16 sonic and 18 density logs from 22 oil test wells to categorize the sonic velocities and densities of Cenozoic sedimentary basins in coastal Washington. We also present laboratory measurements of compressional-wave and shear-wave velocities for 40 basement rocks outcropping in the Olympic Peninsula and Puget Lowland. ... We use these well log and laboratory measurements to examine velocity-density relationships for rock suites found in coastal Washington, the Olympic Peninsula, and Puget Lowland. ... Finally, we use the average velocity and densities determined for sedimentary units in coastal Washington (the Quinault and Montesano Formations and the Hoh rock assemblage) to obtain estimates of the average seismic relfection coefficients in the sedimentary basins found along the coast of Washington."
- Type
- Published Report
- Authors
- Brocher, Thomas; Christensen, Nikolas
- Date of Issue
- 2001
- Publisher
- U.S. Geological Survey
- Units
- HIST , OLYM
- Keywords
- Coastal, earthquake potential, ehistory, Eocene, Geology, History, Modeling, Oil, Quaternary, Sedimentary Rock