Isotope geochemistry (S,C, O,Sr, Pb) of the Chaudfontaine mineralization (Belgium) |
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| Authors: | L Dejonghe J Boulégue D Demaiffe R Lètolle |
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| Institution: | (1) Service Géologique de Belgique 13, rue Jenner, B-1040 Bruxelles, Belgique;(2) Université Pierre et Marie Curie, place Jussieu, 3 — F-75.272 Paris Cedex 05, France;(3) laboratoires associés de Géologie, Pétrologie, Géochronologie, Université libre de Bruxelles, Avenue F. D. Roosevelt, C.P. 160, 50 — B-1050 Bruxelles, Belgique |
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| Abstract: | Investigations on S, C, O, Sr, and Pb isotopes in ores, gangue, and country rocks of the Chaudfontaine ore deposit confirm that interbedded barite and white sparry calcites are cogenetic. They emphasize the marine origin of S and the nonmarine origin of the metals. They underline the important role played by the bacterial reduction at the site of deposition. Hypotheses concerning the source of the metals and the nature of the brines involved in their transportation are briefly discussed. |
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