Origine du matériel altéré et hétérogénéité du matériel originel de la météorite Foum Tatahouine (Tunisie) : éléments traces et isotopes du SrOrigin of altered material and heterogeneity of original material in the Foum Tatahouine meteorite (Tunisia): Trace elements and Sr isotopes |
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| Authors: | Yasmine Bentahila Dalila Ben Othman Jean-Marc Luck |
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| Institution: | GTS, UMR 5573, Département des sciences de la Terre, de l''eau et de l''espace, université Montpellier-2, place Eugène-Bataillon, 34095 Montpellier, France |
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| Abstract: | Foum Tatahouine is one of the rare meteorites that allow studying weathering effects since their fall on Earth. The comparison between clasts collected the very day of the fall (1931) and in 1994 showed some chemical modifications. We report data obtained on samples collected in 2000. The purpose of this study is: (1) to define (REE, Sr isotopes) the terrestrial weathering origin that is to be found in soil carbonates, (2) to show (Sr, Rb, REE) that the weathering effects are small on centimetre-sized samples, and (3) to emphasise (HREE) Foum Tatahouine samples heterogeneity. To cite this article: Y. Bentahila et al., C. R. Geoscience 334 (2002) 267–272. |
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| Keywords: | Foum Tatahouine weathering processes heterogeneity trace elements rare earth elements Sr isotopes meteorite Tunisia Foum Tatahouine altération hétérogénéité isotopes du Sr éléments traces terres rares météorite Tunisie Géochimie Geochemistry |
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