[1] Hassan II Univ Casablanca, GAIA Lab, Fac Sci, Casablanca, Morocco
[2] Univ Paris 06, Inst Terre Paris, UMR 7193, F-75005 Paris, France
[3] Univ Lorraine, Ctr Rech Petrograph & Geochim, F-54501 Vandoeuvre Les Nancy, France
[4] Univ Bretagne Occidentale, Inst Univ Europeen Mer, UMR 6538, F-29280 Plouzane, France
[5] Univ Alberta, Dept Earth & Atmospher Sci, Edmonton, AB T6G 2E3, Canada
[6] Univ Alberta, SLOWPOKE Nucl Reactor Facil, Edmonton, AB T6G 2J9, Canada
[7] Open Univ, Milton Keynes MK7 6AA, Bucks, England
[8] Aix Marseille Univ, CNRS, Ctr Europeen Rech & Enseignement Geosci Environm, F-13545 Aix En Provence 4, France
[9] Nat Hist Museum, Dept Mineral, London SW7 5BD, England
[10] Museum Natl Hist Nat, Lab Etud Mat Extraterrestre, F-75005 Paris, France
[11] CNRS, UMS2679, F-75005 Paris, France
[12] ESA European Space Agcy, European Space Res & Technol Ctr, NL-2200 AG Noordwijk, Netherlands
[13] UK Space Agcy, ESA Harwell Ctr, Didcot OX11 0QX, Oxon, England
[14] Univ Bern, Albert Einstein Ctr Fundamental Phys, CH-3012 Bern, Switzerland