Scheduled Cruises in 2001

Summary of a recent cruise on margins research (FR.011)

Location :   off Morocco, NE Atlantic Ocean

Research ship and cruise identifier :   NO Nadir and NRP Almeida Carvalho (SISMAR)

Sailed :   10 April 2001, Casablanca

Docked :   4 May 2001, Casablanca

PI :   J.A. Malod

Laboratory :   "Domaines Océaniques", IUEM, 4 place Copernic, 29280 Plouzané, France

Other investigators :   Rehault J.P., Geli L., Gutscher M.A, Sahabi M., Matias L., Klingelhoefer F.

E-mail :   malod@univ-brest.fr

Scientific objectives :   The aim of the SISMAR cruise was to image the deep crustal structure of the Atlantic Moroccan margin along 2 transects: one, off El Jadida, crossing the early Jurassic Atlantic margin, the other north of Casablanca crossing the E-W North African Tethyian margin. We carried out deep seismic reflection recording (3600 km )(air guns source 4800 cub in, tuned to single bubble mode, a 4500 m long and 3660 channels streamer). In addition, we deployed OBS-OBH at sea (48 locations) and seismic land stations (33 locations) along selected profiles. Objectives include: The continent ocean boundary, The transition from volcanic to non volcanic margin, The extent of the salt basins and what is their substratum, What is the transitional crust made of? Serpentinized mantle? Intruded continental crust? or non-typical oceanic crust? See http://www-sdt.univ-brest.fr/~sismar/