Ocean Engineering Significance of Marine Seismic Reflection Profiling Technology.
Final rept. Jul 69-May 70,
NAVAL CIVIL ENGINEERING LAB PORT HUENEME CALIF
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Seismic Reflection Profiling SRP data of value to the seafloor engineer include 1 sediment soil thickness, 2 sediment structure, 3 the slope of the bedrock beneath the sediment layer, 4 bedrock topography, if sufficient tracklines are run to permit contouring, 5 bedrock structure, if penetration permits, and 6 acoustical data from which certain physical, engineering, and load bearing properties of an area can be approximated. Qualitative interpretations of acoustical data are made as a matter of course by the experienced analyzer of SRP records and include such parameters as 1 echo intensity from the seafloor and subbottom interfaces, indicating hard high reflectivity and soft low reflectivity layers, 2 penetrability of the seafloor in unconsolidated sediments is generally inversely proportional to grain size, 3 point return, or discrete hyperbolic echo returns, indicative of large irregularities compared to the sound frequency recorded, such as boulder beds, or a weathered bedrock surface. Author
- Physical and Dynamic Oceanography