Coastal & Marine Geology InfoBank

Home FACS Activities Atlas Geology School Related Sites More

USGS CMG InfoBank: Gravimeter

Skip navigational links
Loading
Dictionaries: Our Mapping Systems   The USGS and Science Education   USGS Fact Sheets   Topics   Keywords   Data Dictionary   Metadata Dictionary   Computer Terminology   Digital Formats  
InfoBank Terms: Activity ID   activity overview   crew   digital data   formal metadata   lines   metadata   NGDC   port stops   project/theme   region   ship   stations   time   virtual globe   year  
Data Types: bathymetry   biological   geochemical   gravity   ground penetrating radar   imaging   LIDAR   logs   magnetics   metering equipment   navigation   samples   seismic   total station   definitions disclaimer  
Data Formats: ARC coverage   E00   FGDC metadata   gridded/image   imaging   material   scattered/swath   Shapefile   vector/polygon  
Comment: 16:50 - 17:19 (00:29)
Source: Annenberg/CPB Resources - Earth Revealed - 3. Earth's Interior
Keywords: iron, salt, gravimeter

Our transcription: Gravimeters have also proven useful in detecting high density iron ore deposits and low density bodies of salt hidden from view.
At the heart of a gravimeter is a spring with a weight attached to its end.
The stronger the pull of gravity, the more the spring is extended.
This extension, a function of gravity, is accurately measured by the gravimeter.

Geology School Keywords
Skip footer navigational links

Coastal and Marine Science Centers:  Pacific   St. Petersburg   Woods Hole  
InfoBank   Coastal and Marine Geology Program   Geologic Information   Ask-A-Geologist   USGS Disclaimer  


Accessibility FOIA Privacy Policies and Notices

Take Pride in America logo USA.gov logo U.S. Department of the Interior | U.S. Geological Survey
URL: http://walrus.wr.usgs.gov/infobank/programs/html/school/moviepage/03.01.23.html
Page Contact Information: InfoBank staff
Page Last Modified: Thu Oct 31 04:25:24 PDT 2013  (chd)