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The Structural Information Potential of Mapping Previous HitMagneticNext Hit Responses Created in the Near-Surface Formations

John P. Land

Modern Previous HitmagneticNext Hit survey has the capacity to resolve Previous HitmagneticNext Hit anomalies created in the shallow sedimentary section as well as those created at or beneath the basement surface.

The detailed profile analysis of aeromagnetic data allows the resolution and mapping of detail less apt to be preserved through gridding and contouring processes, Previous HitmagneticNext Hit responses caused by the structural disturbance of the near-surface formations. When certain criteria are consistently applied to the mapping of these Previous HitmagneticNext Hit anomalies, in addition to defining Previous HitmagneticNext Hit prospect leads, linear features believed to represent tectonically-stressed subsurface zones are also resolved, information with the potential of adding another dimension to the Previous HitmagneticNext Hit surveymethod and contributing to more accurate integrations of multiple data sets.

Previous HitMagneticNext Hit surveys in the Williston, Black Warrior and Val Verde basins and the Gulf of Mexico show linear near-surface based features coincident with deep-seated structure suggesting fracture zones created by the various mechanical and depositional processes associated with the lateral and vertical displacement of basement faults.

Small and large airborne Previous HitmagneticNext Hit surveys from the onshore and offshore are used to display the information gained through the mapping of Previous HitmagneticTop responses created in the near-surface formations.

AAPG Search and Discovery Article #91020©1995 AAPG Annual Convention, Houston, Texas, May 5-8, 1995