Gravity is an effective tool in the study of the complex Ouachita Trend Belt.

There is a major density contrast between the Arkansas Novaculite and the overlying Stanley Shale.

Anticlines in the novaculite, like that at the Isom Springs Field in Marshall County, Oklahoma, cause strong maximum gravity anomalies.

Another strong density contrast is between the Arbuckle formation and the overlying flysch deposits. Uplifts in the Arbuckle into the flysch sediments would cause prominent maximum gravity anomalies.

 

Specifications:

The gravity control was recorded using high standards of quality. The new coverage in the area was integrated with previous control to provide a suitable grid. Gravity values are accurate to approximately 0.04 milligals.

The gravity coverage, including about 19,000 stations, may be purchased, with a minimum purchase of 1000 stations in a contiguous block.