Gravity Stations

Use Import menu of Data Manipulation form to convert  to a database file for display and analysis.

This was designed for: 

• GRAVITY DATA OF NEVADA By D.A. Ponce, 1997
• U.S. GEOLOGICAL SURVEY DIGITAL DATA SERIES DDS-42

Files available online at: ftp://geopubs.wr.usgs.gov/pub/dds/dds-42/DATA/

The DBF file will have the location, elevation, and two anomalies:

• Bouger anomaly corrects for tides, latitude, and elevation, all of which effect the gravitational pull. This shows the characteristics of the crust. This correction  takes into account the nature (density) of the material between the surface of equal gravity or geoid and the measuring station. Any anomaly remaining after  these corrections have been made is called the Bouger Anomaly and represents the effect of rocks with densities different from the average, or structural controlled rock masses not in isostatic equilibrium
• Isostatic anomaly mathematically corrects for the effect of a deep root.

Last revision 9/28/2002