FN Archimer Export Format PT J TI Apport des techniques par rayons X à la caractérisation des encroûtements cobaitifères océaniques OT X-ray techniques for characterization of cobalt-rich oceanic crusts BT AF ETOUBLEAU, Joel BOHN, Marcel FOUQUET, Yves CAMBON, Pierre LE SUAVE, Raymond AS 1:;2:;3:;4:;5:; FF 1:PDG-DRO-GM-GEOCHIMIE;2:;3:PDG-DRO-GM-GEOCHIMIE;4:PDG-DRO-GM-GEOCHIMIE;5:PDG-DRO-GM; C1 IFREMER, Dept Geosci Marines, F-29280 Plouzane, France. CNRS, UMR 6538, F-29280 Plouzane, France. C2 IFREMER, FRANCE CNRS, FRANCE SI BREST SE PDG-DRO-GM-GEOCHIMIE PDG-DRO-GM IN WOS Ifremer jusqu'en 2018 IF 0.299 TC 3 UR https://archimer.ifremer.fr/doc/00000/10415/9517.pdf LA French DT Article AB A range of X-ray analytical techniques contributes particularly well to the mineralogical and geochemical characterisations of cobalt-rich iron and manganese oxides crusts. X-ray diffraction is used to identify the weak crystallinity of the material. Bulk geochemical characterisation of the crusts is done by X-ray fluorescence for the precise determination of ca. thirty major and trace elements. Fine scale analysis is carried out by electron microprobe to quantitatively map the distribution of elements in oxide phases within the crusts. Microprobe work is essential to obtain the chemical composition of the embedded metallic micro-meteorites. PY 2000 PD SEP SO Journal De Physique Iv SN 1155-4339 PU E D P Sciences VL 10 IS P10 UT 000090055000039 BP 363 EP 374 DI 10.1051/jp4:20001039 ID 10415 ER EF