- Link:http://www.osti.gov/bridge/advancedsearch.jsp
- Source:http://www.osti.gov/rdprojects
- Resource Type:Technical Report
- OSTI Identifier:6870367
- Published Date:2007-05-13
- Subject:15 GEOTHERMAL ENERGY; 58 GEOSCIENCES; COMPUTER CODES; G CODES; GEOLOGIC MODELS; GRAVITY SURVEYS; MAGNETIC SURVEYS; MANUALS; MAPPING; THREE-DIMENSIONAL CALCULATIONS; DOCUMENT TYPES; GEOPHYSICAL SURVEYS; SURVEYS
- Description:GM3D has been developed for computering the gravity or magnetic anomaly due to a three-dimensional body, and for plotting the resulting contour map. A complex body may be constructed from several right-rectilinear vertical-sided prisms. The program allows the input and editing of the prism data which are then used to calculate the anomaly map for plotting. Plotting is done on either a Tekronix 4014 graphics terminal, a Statos electrostatic plotter, or a CalComp pen plotter. A terminal plot is al ...Show More
- Description:GM3D has been developed for computering the gravity or magnetic anomaly due to a three-dimensional body, and for plotting the resulting contour map. A complex body may be constructed from several right-rectilinear vertical-sided prisms. The program allows the input and editing of the prism data which are then used to calculate the anomaly map for plotting. Plotting is done on either a Tekronix 4014 graphics terminal, a Statos electrostatic plotter, or a CalComp pen plotter. A terminal plot is also available which can be printed on any terminal and on a line printer. The program is written in FORTRAN IV code and operates on a PRIME 400 computer system. Adaptation of the program to other systems is relatively straightforward. ...Show Less

## GM3D: interactive three-dimensional gravity and magnetic modeling program (GM3D. REV1 user's guide)

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