Details

Autor(en) / Beteiligte

• Wannesson, Jacques
• Icart, Jean‐Claude
• Ravat, Jean
• Meissner, Rolf
• Brown, Larry
• Franke, Wolfgang
• Seifert, Friedrich
• Dürbaum, Hans‐Jürgen
• Fuchs, Karl

Titel

Structure and Evolution of Adjoining Segments of the West African Margin Determined from Deep Seismic Profiling

Ist Teil von

• Continental Lithosphere: Deep Seismic Reflections, 1991, p.275-289

Ort / Verlag

Washington, D. C: American Geophysical Union

Erscheinungsjahr

1991

Link zum Volltext

Quelle

Wiley Online Library All Obooks

Beschreibungen/Notizen

• Previous geological and geophysical work has established that the West African continental margin between the Douala Basin (Cameroon) and the mouth of the Congo River is divided into three segments separated by major transverse faults. Each segment has its own specific geodynamic evolution, whose mechanisms were previously hard to assess. A deep seismic survey in 1988 revealed the crustal structure of the central and southern segments as well as of the faulted zone separating them. Differences in the rate of crustal synrift thinning were revealed between these two segments, which can be explained by comparison with the Brazilian conjugate margin during the pre‐opening stage. From this we consider that the fault zones separating the segments are transfer zones involving no intraplate discontinuity.