The Bangui Magnetic Anomaly: Its geological origin

Satellite magnetometer data have revealed a long‐wave length magnetic anomaly in the vicinity of Bangui, Central African Republic. Substantiation of the anomaly has been made through analysis of air and ground magnetic surveys. A correlative gravity anomaly has also been observed in ground gravity data. The anomaly, in an area of highly metamorphosed Precambrian rocks, does not correlate with any surficial features but is definitely crustal in origin. An interpretation consistent with all available geophysical and geological data is that the anomaly could be the result of an early intrusion into the crustal rocks of this region, followed by subsidence and deformation.