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Original Title
Dispositif et procede pour la separation et l'enrichissement en continu des isotopes du soufre
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10 Jan 1974; 14 p; FR PATENT DOCUMENT 2213090/A/; Available from INPI, Paris; Available from Institut National de la Propriete Industrielle, Paris (France); priority claim: 10 Jan 1973, USA.
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Patent
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AbstractAbstract
No abstract available
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Chalupka, A.; Wild, E.; Dirniger, G. (Oesterreichische Akademie der Wissenschaften, Vienna. Inst. fuer Radiumforschung und Kernphysik) (eds.); Oesterreichische Akademie der Wissenschaften, Vienna; 27 p; 1984; p. 17; Published in summary form only.
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[en] An experimental study of sulfur isotope separation by infrared photolysis of SF6, shows evidence of some reaction products. The enrichment coefficient β was measured in pure SF6 and in mixtures SF6+H2 and SF6+O2
[fr]
Une etude experimentale de separation des isotopes du soufre par photolyse infrarouge de SF6 a permis de mettre en evidence quelques uns des produits formes. Des mesures du facteur d'enrichissement β ont ete faites en irradiant SF6 pur, SF6+H2 et SF6+O2Original Title
Separation isotopique de SF6 par photolyse infrarouge
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Journal Article
Journal
Comptes Rendus Hebdomadaires des Seances de l'Academie des Sciences. Serie B; v. 282(16); p. 357-360
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Mills, T.R.; McInteer, B.B.; Montoya, J.G.
Synthesis and applications of isotopically labelled compounds 19881989
Synthesis and applications of isotopically labelled compounds 19881989
AbstractAbstract
[en] Sulfur and selenium isotopes are used for labeled compounds and as precursors for radioisotope production; however, both limited availability and high costs are problems. A new method is needed for large-scale separation of theses isotopes. Experimental distillation columns were used to measure isotopic separations for sulfur and selenium compounds. The maximum total isotope separations of 32S vs. 34S were 1.127 for H2S, 1.048 for COS, 0.838 for SF4, and 1.058 for CH3SH. Relative volatilities of 32S and 34S are 1.0006 for COS and 0.9976 for SF4. There is a reverse isotope effect for carbon in COS. No isotopic separation was observed for dimethyl selenide. The lower mass selenium isotopes in H2Se are more volatile. Distillation is a promising method for separating sulfur isotopes on a production scale. Existing distillation technology produces separated isotopes with an effect similar to that found for sulfur in SF4. (author). 8 refs.; 2 tabs
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Baille, T.A. (Washington Univ., Seattle, WA (USA). Dept. of Medicinal Chemistry); Jones, J.R. (Surrey Univ., Guildford (UK). Dept. of Chemistry) (eds.); 860 p; ISBN 0-444-87368-6;
; 1989; p. 773-776; Elsevier; Amsterdam (Netherlands); International symposium on the synthesis and applications of isotopically labelled compounds; Innsbruck (Austria); 17-21 Jul 1988

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[en] On the west side of Lee Bay on the northeast coast of Stewart Island, ventifact cobbles of pyrite-coated granite occur on the beach near the high tide mark and appear to be derived from a sand-cemented gravel deposit that forms a low bank at the back of the beach. The pyrite coat (up to 1 mm thick) completely covers the granitic cobbles and is zoned, with an inner zone of fine-grained colloform pyrite and an outer framboidal zone. Framboidal pyrite is typically formed in anoxic sedimentary environments. Subrounded grains of hematite, ilmenite with hematite blebs, magnetite, feldspar, biotite, quartz and zircon are present in the outer framboidal zone, with some ilmenite and hematite grains being partially replaced by pyrite. The assemblage of ilmenite-hematite-magnetite-biotite-zircon is similar both in mineralogy and size range to that found in heavy mineral beach sands. Sulphur isotope values of the pyrite coat are consistent with formation of the pyrite by microbial sulphate reduction of seawater sulphate. The framboidal texture together with the presence of grains of beach sand in the pyrite coating indicate that it was deposited in a low-temperature sedimentary environment. (author)
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24 refs., 7 figs., 1 tab.
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Journal Article
Journal
New Zealand Journal of Geology and Geophysics; ISSN 0028-8306;
; v. 57(1); p. 57-64

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Gavrieli, I.; Spiro, B.; Nielsen, H.; Aizenshtat, Z.
Israel Geological Society annual meeting 19941994
Israel Geological Society annual meeting 19941994
AbstractAbstract
[en] Short communication
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Source
Amit, R. (Hebrew Univ., Jerusalem (Israel)); Arkin, Y.; Hirsch, F. (Ministry of Energy and Infrastructure, Jerusalem (Israel). Geological Survey of Israel); Israel Geological Society, Jerusalem (Israel); 143 p; Feb 1994; p. 29; Israel Geological Society annual meeting 1994; Ginosar (Israel); 28 Feb - 2 Mar 1994
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Miscellaneous
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[en] ALH84001 is a coarse-grained, clastic orthopyroxenite meteorite related to the SNC meteorite group (shergottites, nakhlites, Chassigny). Superimposed upon the orthopyroxene-dominant igneous mineral assemblage is a hydrothermal signature. This hydrothermal overprint consists of carbonate assemblages occurring in spheroidal aggregates and fine-grained carbonate-sulfide vug-filling. The sulfide in this assemblage has been identified as pyrite, an unusual sulfide in meteorites. Previously, Burgess et al. (1989) reported a bulk δ 34S for a SNC group meteorite (Shergotty) of -0.5 ± 1.5%. Here, we report the first martian δ 34S values from individual sulfide grains. Using newly developed ion microprobe techniques, we were able to determine δ 34S of the pyrite in ALH84001 with a 1 α precision of better than ±0.5%. The δ 34S values for the pyrite range from +4.8 to +7.8%. Within the stated uncertainties, the pyrite from ALH84001 exhibits a real variability in δ 34S in this alteration assemblage. In addition, these sulfides are demonstrably enriched in 34S relative to Canon Diablo troilite and sulfides from most other meteorites. This signature implies that the planetary body represented by ALH 84001 experienced processes capable of fractionating sulphur isotopes and that hydrothermal conditions changed during pyrite precipitation (T, pH, fluid composition, etc.). These new data are not consistent with the pyrite recording either biogenic activity or atmospheric fractionation of sulphur through nonthermal escape mechanisms or oxidation processes. This study also demonstrates the usefulness of ion microprobe measurements of sulphur isotopes in constraining conditions on other planetary bodies
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AbstractAbstract
No abstract available
Original Title
Darstellung S-isotopensubstituierter Thiocarbonylverbindungen
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Source
1 tab.; 4 refs. Short communication only.
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Journal Article
Journal
Angewandte Chemie; v. 89(10); p. 743-744
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AbstractAbstract
No abstract available
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Wild, E.; Dirniger, G. (eds.); Oesterreichische Akademie der Wissenschaften, Vienna. Inst. fuer Radiumforschung und Kernphysik; 57 p; 1984; p. 41; Published in summary form only.
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Report
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Progress Report
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[en] Structurally-controlled Fe-Ni sulphide ores at Windarra are associated with a metamorphosed, highly magnesian ultramafic unit overlying a thin metasedimentary unit within a metamorphosed ultramafic pile that includes ultramafic flows. A genetic model developed from ore distribution and geochemical data is proposed for the several ore types at Windarra. Disseminated ores originally were formed by gravity concentration of magmatic sulphide liquid droplets in an ultramafic flow or subvolcanic sill. During amphibolite facies metamorphism massive sulphides were generated from more disseminated ores by diffusion and/or segregation processes, and sulphide-rich ores apparently formed at the interface between the ultramafic unit and sulphide-bearing metasedimentary rocks by diffusion of ore components in metasomatic reaction zones. Breccia ore subsequently was formed by deformation of massive sulphides developed along this contact. Sulphur isotope ratios for the ore types show a tendency towards lighter means and a greater range corresponding to the following order: massive ore (mean delta34S +0.40/00, range 0.80/00), disseminated ore (-0.5, 2.4), breccia ore (-1.3, 3.4), metasedimentary ore (-1.6, 4.7). Sulphides from the adjacent metasedimentary rocks, including the main unit underlying the ultramafic pile, show similar isotopic distributions to the metasedimentary ore. These data support a magmatic origin for the disseminated ore and indicate that massive sulphides did not develop from a sulphide pool beneath disseminated sulphides at the magmatic stage. The data are also consistent with derivation of sulphides in the metasedimentary rocks and metasedimentary ore by inorganic precipitation of volcanically derived sulphur. The origin of sulphur in the breccia ore cannot be defined unequivocally by the sulphur isotope data. (auth.)
Primary Subject
Source
Robinson, B.W. (ed.) (Department of Scientific and Industrial Research, Lower Hutt (New Zealand). Inst. of Nuclear Sciences); New Zealand DSIR bulletins; p. 187-200; 1978; p. 187-200; DSIR Science Information Division; Wellington; International stable isotope conference; Lower Hutt, New Zealand; 4 - 6 Aug 1976; ISSN 0077-961X; 

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