A GRAVITY SURVEY OF FORT ORD, CALIFORNIA.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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In April 1969, 50 different gravity stations on and around the perimeter of Fort Ord, California, were obtained using a LaCoste-Romberg Model G Geodetic Gravity Meter. The density of stations enabled accurate location of 5-mgal contours of Simple Bouguer Anomaly. The major differences found between the new and previously published contours occurred in the west and southwest regions of Fort Ord. Five stations obtained by an earlier investigator were reoccupied during this study. The differences in observed gravity at these stations ranged from -0.37 mgal to -0.70 mgal. In an attempt to explain the differences, 11 additional stations were reoccupied in August 1969. Observed gravity differences for these stations ranged from -0.05 mgal to -0.58 mgal. The differences could not be fully explained nor could the earlier study be successfully tied to this study. Ford Ord lies on a gravity low and is isostatically overcompensated. Further gravity readings are required on the Monterey Peninsula and in the Salinas Valley to adequately define the substructure of Fort Ord. Author