Figure 2
From: Archean crust and metallogenic zones in the Amazonian Craton sensed by satellite gravity data
Products from airborne and satellite-borne potential field data. (A) Complete Bouguer anomaly map from the satellite gravity field model GOCO05s. The grey dashed line outlines the area surveyed by airborne gravity (in B,C,D). (B) Complete Bouguer anomaly map from airborne gravity data, filtered for causative bodies shallower than 10 km (C) and more profound than 10 km (D). (E) The amplitude of the analytic signal map extracted from airborne magnetic data. Profiles from 1 to 4 were forward modeled to constrain subsurface geometry (see Supplemental Information Appendix Fig. S2). High-gradient areas running in the NE-SW direction relate to Jurassic basic dikes. Acronyms: keys for domain names as in Fig. 1. CBA– complete Bouguer anomaly. S- satellite-borne. A – air-borne.
