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Title:
Retention of Xenon in Quartz and Earth's Missing Xenon
Authors:
Sanloup, Chrystèle; Schmidt, Burkhard C.; Perez, Eva Maria Chamorro; Jambon, Albert; Gregoryanz, Eugene; Mezouar, Mohamed
Affiliation:
AA(Université Pierre et Marie Curie and Institut de Physique du Globe de Paris, 75252 Paris, France), AB(Bayerisches GeoInstitut, 95440 Bayreuth, Germany), AC(Laboratoire de Sciences de la Terre, Ecole Normale Supérieure de Lyon, 69364 Lyon, France), AD(Université Pierre et Marie Curie and Institut de Physique du Globe de Paris, 75252 Paris, France), AE(School of Physics and Centre for Science at Extreme Conditions, University of Edinburgh, EH9 3JZ, UK.), AF(European Synchrotron Radiation Facility, 38043 Grenoble, France)
Publication:
Science, Volume 310, Issue 5751, pp. 1174-1177 (2005). (Sci Homepage)
Publication Date:
11/2005
Category:
GEOCHEM PHYS
Origin:
SCIENCE
DOI:
10.1126/science.1119070
Bibliographic Code:
2005Sci...310.1174S

Abstract

The reactivity of xenon with terrestrial oxides was investigated by in situ synchrotron x-ray diffraction. At high temperature (T > 500 kelvin), some silicon was reduced, and the pressure stability of quartz was expanded, attesting to the substitution of some xenon for silicon. When the quartz was quenched, xenon diffused out and only a few weight percent remained trapped in samples. These results show that xenon can be covalently bonded to oxygen in quartz in the lower continental crust, providing an answer to the missing xenon problem; synthesis paths of rare gas compounds are also opened.
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