JOURDAN , F.

The 40Ar/39Ar technique is the most commonly used technique to date basaltic rocks. For basaltic rocks older than about 30 Ma, the dating of plagioclase separates is preferred over groundmass as the latter is susceptible to containing cryptic alteration due to fluid circulations, difficult if not impossible to remove during sample preparation....

Chemical Geology, v. 231, n. 3, p. 177-189, 2006. http://dx.doi.org/10.1016/j.chemgeo.2006.01.027

Lithos, v. 98, n. 1-4, p. 195-209, 2007. http://dx.doi.org/10.1016/j.lithos.2007.03.002

International audience

Geochimica et Cosmochimica Acta, v. 69, p. A98, 2005

We report major and trace element abundances for 147 samples and Sr, Nd, Hf, and Pb isotope compositions for a 36 sample subset of basaltic lava flows, sills, and dykes from the Karoo continental flood basalt (CFB) province in Botswana, Zimbabwe, and northern South Africa. Both low- and high-Ti (TiO2 < 2 wt % and > 2 wt %) rocks are included....

Piaba is an orogenic gold deposit (~ 3.5 Moz) of the São Luís cratonic fragment in north-northeastern Brazil. The deposit is epizonal–mesozonal and associated with the development of a subvertical strike–slip fault that cut across Rhyacian metavolcano-sedimentary rocks and granitoids. The metavolcano-sedimentary sequence comprises...

The Trindade Island is located in the South Atlantic Ocean, 1170 km from the Brazilian coast and represents the eastern end of the submarine E–W Vitória–Trindade Chain. This is interpreted as the Trindade plume track beneath the South American plate during the Cenozoic. Almeida (1961) recognized five volcanogenic successions at Trindade in...

Earth and Planetary Science Letters, v. 222, n. 3-4, p. 989-1006, 2004. http://dx.doi.org/10.1016/j.epsl.2004.03.017

Earth and Planetary Science Letters, v. 202, n. 3-4, p. 595-606 [433], 2002. http://dx.doi.org/10.1016/S0012-821X(02)00763-X

An integrated stratigraphic study was conducted on the shallow water carbonate platforms of the Guadeloupe archipelago to refine the tectonic evolution of the Lesser Antilles forearc. The carbonate platforms are now dated to the Zanclean-Calabrian interval, and their demise occurred between 1.5 and 1.07 Ma. The precise chronostratigraphy allows...