Magnetic and Gravity

There is excellent coverage of aeromagnetic data over Tanzania. Onshore and offshore, the data include magnetic surveys of 1971 by Aerosurvey for AGIP and a 1976 survey by Geosurvey International for the Government. The data from these surveys are in the form of maps and are available for inspection at the TPDC offices. The coverage of gravity data is 'patchy', consisting mainly of regional surveys. The best coverage is in the coastal area over the Mandawa and Ruvuma basins, the larger offshore islands and in the Rukwa Rift Basin. In the Ruvu, Selous and Rufiji areas the gravity coverage is limited mainly along the recently acquired seismic lines