Details

Autor(en) / Beteiligte

• Bois, C
• Cazes, M
• Damotte, B
• Galdéano, A
• Hirn, A
• Mascle, A
• Matte, P
• Raoult, J.F
• Torreilles, G
• Barazangi, Muawia
• Brown, Larry

Titel

Deep Seismic Profiling of the Crust in Northern France: The Ecors Project

Ist Teil von

• Reflection Seismology: A Global Perspective, 1986, p.21-29

Ort / Verlag

Washington, D. C: American Geophysical Union

Erscheinungsjahr

1986

Link zum Volltext

Quelle

Wiley Online Library All Obooks

Beschreibungen/Notizen

• The goal of the ECORS project was to investigate France's main geological features by deep seismic profiling of the crust, and to improve current seismic methodology both in field work and in data processing. The first ECORS field work, a 230‐km line studying the Variscan belt in northern France, was completed in 1984. The originality of the ECORS field procedure lies in the combination of reflection, refraction and wide‐angle‐reflection seismic surveying on the same continuous profile. A preliminary cross‐section shows the root of the Variscan front, located 130 km south of the Midi fault, above the lower crust. The Moho is found at depths of between 36 and 40 km and at even greater depths in the north and south. The Bray fault cuts across the whole crust, downthrowing the Moho by l s TWT in the north. The Somme fault forms the boundary between two crustal areas having different facies.