Anomalies/location

Amplitude

Direction/trend

Causes/significance

Mount Cameroon, Limbe (P1)

High amplitude positive anomalies

Quasi-circular

Cenozoic to actual volcanic formation, active volcano

Ngambe (P7)

High amplitude positive anomalies

Quasi-circular

Transitional zone between the Congo craton and the Pan-African, mantle intrusion injected by Sanaga Fault

Takamanda, Cameroon-Nigeria boundary

High amplitude positive anomalies

Quasi-circular

Old granit and basement complex formation

Beneath Edéa

Relative positive anomalies

Quasi-circular

Transitional zone between the Congo craton and the Pan-African, mantle intrusion injected by Sanaga Fault

Eseka, Makak (P8)

Relative negative anomalies

Located signature

Congo craton signature

Kumba (P2)

Negative anomalies

Located signature

Cenozoic to actual volcanic formation

Manyemen-Fontem (P3 and P4)

High amplitude negative anomalies

CVL direction (N˚30E)

Sedimentary basin of Mamfe

Mt Bambouto-Mt Oku-Kumbo (P5 and P6)

Line of successive negative anomalies

CVL line direction (N˚30E)

Cenozoic to actual volcanoes from CVL

Lakes Nyos and Monoun

Negative anomalies

Located signature

Crater lakes associated with gas emission

Efolofo in the North of Mount Cameroon

Negative anomalies

Located signature

Minor basin