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Marine Applications

Marine geophysics is the application of geophysical methods in water covered areas.  Applications range from simple bottom mapping with an echo sounder to mapping sub-bottom stratigraphy to locate anomalous geologic conditions below the bottom.  Technos has been an innovative leader in the development of geophysical tools and applications in both fresh water and saltwater environments.   While marine geophysics is traditionally applied in coastal environments, Technos has successfully used geophysics to investigate lakes, canals, rock quarries, storm water impoundments, dams, levees, and effluent discharge ponds. The following table lists some of the marine geophysical methods and their most common applications. We invite you to read a summary of our marine geophysical capabilities presented in our Technos News.

Common Marine Geophysical Methods and Applications:
Method Application
Sub-bottom profiling Mapping stratigraphy, structure, and anomalous sub-bottom conditions
Seismic refraction Mapping top of rock and P-wave velocity for rippability or pre-dredging surveys
MASW Providing S-wave velocity to map variations in sediment or rock and to provide elastic parameters
Magnetics Identifying ferrous (steel) objects on the bottom or below the bottom
Electromagnetics Mapping electrical conductivity due to contaminants or geologic variability
GPR Mapping shallow sub-bottom conditions in fresh water
Resistivity Mapping stratigraphy and anomalous sub-bottom conditions. Identifying springs and variations in water quality
Side-scan Sonar Providing a detailed acoustic image of the bottom to identify bottom features