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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Earth and Planetary Science Letters 82 (1987), S. 255-268 
    ISSN: 0012-821X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Description / Table of Contents: Résumé De nombreux indices et anciennes exploitations de faible tonnage pour Pb-Zn-Ba-F s'observent dans les séries carbonatées du Dévonien moyen et supérieur du SW du Synclinorium de Dinant où elles délimitent un district métallifère. Une étude lithogéochimique régionale des calcaires givétiens montre le faible potentiel métallifère de ces sédiments de plateforme. Ces résultats sont confirmés par l'étude de la distribution de 13 éléments présents dans un filon et son encaissant immédiat. Enfin la comparaison des compositions isotopiques du Pb des galènes du filon et du Pb en trace dans les calcaires encaissants apporte des arguments décisifs. Ces résultats sont suffisants pour rejeter l'hypothèse de l'origine des métaux par sécrétion latérale et militent en faveur du caractère “épigénétique-étranger” de ces minéralisations.
    Notes: Abstract Numerous vein mineralizations occur in the carbonate series of the Middle and Upper Devonian located in the Pb-Zn (F-Ba) metalliferous district of the South border of the Dinant Synclinorium. A regional lithogeochemical study (major and trace elements) of the Givetian limestones reveal the low potential of heavy metals in these platform sediments. These results are confirmed by the distribution of 13 elements present in a vein mineralization and its close surrounding. Finally, the comparison of the isotopic composition of the lead in the galenas of the vein mineralization and the traces of lead in the host rocks add decisive important arguments. These results seem to be sufficient to reject the hypothesis of the origin of the metals by lateral secretion and are in favor of an “epigenetic-foreign” character for these mineralizations.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Mineralium deposita 19 (1984), S. 317-317 
    ISSN: 1432-1866
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences
    Type of Medium: Electronic Resource
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