New geochronological history of the Mbuji-Mayi Supergroup (Proterozoic, DRC) through U-Pb and Sm-Nd dating

peer reviewe

How to date a sedimentary serie: Different approaches to better constrain the diversification of early eukaryotes in Central Africa (Mbuji-Mayi Supergroup, Proterozoic, DRCongo)

Peer reviewe

X-ray multilayer monochromator with enhanced performance

International audienceAn x-ray multilayer monochromator with improved resolution and a low specular background is presented. The monochromator consists of a lamellar multilayer amplitude grating with appropriate parameters used at the zeroth diffraction order. The device is fabricated by means of combining deposition of thin films on a nanometer scale, UV lithography, and reactive ion etching. The performance of this new monochromator at photon energies near 1500 eV is shown

Improvement of low-level trace element analysis with the electron microprobe

International audienc

Geochemical processes evidenced by an EPMA trace element study of pyroxenes and amphiboles

International audienc

Evidence of migrating fluids in the upper mantle: an EPMA investigation of trace elements and oxidation ratios of glasses and clinopyroxenes in mantle xenoliths from Massif Central (France)

International audienc

Xenolith glasses: a key to deciphering mantle processes ?

International audienc

Ionizing irradiation effects on the redox state of alkali silicate glasses.

International audienc

EPMA determination of trace element: REE and metals in amphiboles and clinopyroxenes, a record of metasomatic effects in the mantle

International audienc