SAINT PAUL

Type Oceanographic cruise
Ship Le Nadir
Ship owner Ifremer
Dates 19/12/1997 - 10/01/1998
Chief scientist(s) HEKINIAN Roger, JUTEAU Thierry

GEO-OCEAN - UMR 6538

Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud

Place Nicolas Copernic

29280 Plouzané

https://www.geo-ocean.fr/
DOI 10.17600/97080050
Objective

The SAINT-PAUL cruise aimed to study the magmatism and dynamics of the mantle location and the ocean crust associated with a region with the greatest density of transform faults in the Atlantic, connecting the African margin with that of Brazil. Contrary to other regions in the Northern and Southern Atlantic, where volcanic activity is intense in the most part, this region of the Equatorial Atlantic zone (0 deg 40 N- 26 deg W) is related to a "colder" lithosphere (weakly magmatic).

Data managed by SISMER

Sampling operations

Dives

Bibliography

Publications

Sichler Bertrand, Hekinian Roger (2002). Three-dimensional inversion of marine magnetic anomalies on the equatorial Atlantic Ridge (St. Paul Fracture Zone): Delayed magnetization in a magmatically starved spreading center? Journal Of Geophysical Research Solid Earth, 107(B12), -. Publisher's official version : https://doi.org/10.1029/2001JB000401 , Open Access version : https://archimer.ifremer.fr/doc/00000/10223/