Western Coastal and Marine Geology
Coastal and Seafloor Mapping

Mapping Systems

Surficial and Sub-bottom Systems:
Seismic Reflection Systems

A diverse array of seismic-reflection systems enables flexibility to address a wide-range of scientific objectives.

High Resolution,
Shallow Penetration
Systems

Edgetech chirp
Edgetech (chirp)
0.5 - 12 kHz
High-resolution Chirp
Example of a high-resolution chirp image
Edgetech chirp
Edgetech (chirp)
4 - 24 kHz
sparker
Sparker
50 Hz - 4 kHz
huntec
Huntec Boomer Sled
300 Hz - 3 kHz

Lower Resolution,
Deep Penetration
Systems

water gun
Water Gun
20 - 1500 Hz

Example of a multichannel seismic image

 

    

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U.S. Department of the Interior    U.S. Geological Survey    Western Coastal & Marine Geology
URL: http://walrus.wr.usgs.gov/mapping/seis.html
maintained by Laura Zink Torresan
last modified 17 December 2006 (lzt)