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Pacific Coastal & Marine Science Center


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Coastal and marine geology data types and equipment

Magnetics

Magnetism of the rocks and sediment of the seafloor is collected via a proton procession magnetometer. The earth's gravity field can also be measured by the use of a gravimeter. Together these measurements are called "geopotential." It was measurements of this kind that most directly convinced geologists of the validity of the plate tectonic theory.

 

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URL: http://walrus.wr.usgs.gov/equip/magnet.html
Page Contact Information: Laura Zink Torresan
Page Last Modified: 18 June 2009 (lzt)