Three-Dimensional Gravity Ideal Body Studies in Rough Terrain

摘要

An approach to the interpretation of potential field anomaly data is to maximize or minimize some non-linear scalar property of solutions fitting the data. As an example, a comparison of 2-D and 3-D gravity ideal body results from the Lucero Uplift, a westward-tilted fault block located on the western flank of the Rio Grande rift, is discussed. The anomaly was analyzed to obtain bounds on the density contrast, depth of burial, and minimum thickness of its sources. Based on a synthesis of the gravity data with structural analysis and geomorphology, a shallow mafic intrusion is proposed to account for the positive gravity anomaly. 12 refs. (ERA citation 10:037882)