Detailed Section of the Lithosphere in Angola Basin on the Seismic Refraction Data with Account of Earth Curvature

New interpretation of DSS data of 1980th in Angola Basin with homogeneous function method gave seismic section of considerably more informative than previous one. Besides of the curvature of the Earth now was taken in account. Asthenosphere diapir exists in the lithosphere on the boundary of transient zone. Thickness of the crust is increased sharply toward continent along several seaward faults. Two layers with increased velocity, rising in the party of continent, are traced in the lithosphere in central part of the profile. Asthenosphere forms steps inclined in direction to continent. Perhaps, blocks of oceanic lithosphere were moved under continent along asthenosphere top by fault with displacement of about 30 km.