Quaternary stratigraphy of Noire River cores, Beauceville area, Quebeci

نویسندگان

  • S. L. Smith
  • W. W. Shilts
چکیده

Potentially gold-bearing sediments in buried valleys in the Beauceville area have been sampled and studied using stratigraphic drilling techniques. These investigations show that river orientation transverse to dominant ice $ow directions, the relationships of preglacial and glacial sediments, oxidation at depth, brown colour in till, and distinctive geochemical data for Ni all provide important clues useful for evaluating the potential for gold mineralization. Three drill cores from Noire River reveal unique stratigraphy and are tentatively correlated with sections and boreholes on nearby Plante and Gilbert rivers. The similarity of the stratigraphic succession at Noire River to stratigraphy at Gilbert River suggests that conditions for gold mineralization may also be favourable in Noire Valley. Une nouvelle mkthode d'exploration de se'diments aurijPres dans des vallkes enfouies de la rkgion de Beauceville est fondke sur la reconnaissance de certaines caracte'ristiques. Ces paramktres comprennent: l'orientation des rivikres perpendiculaires aux directions dominantes de l'e'coulement de la glace, le relief structural, la stratigraphie des skdiments ante'-glaciaires et du Wisconsinien infe'rieur a moyen, l'oxydation en profondeur, la couleur brune des tills et les donnkes geochimiques distinctives du Ni. Trois carottages de forage prises dans la riviPre Noire rkvklent une stratigraphie unique et peuvent gtre corrilies provisoirement avec des coupes transversales et des trous de sonde effectuks dans les rivikres avoisinantes Plante et Gilbert. Ces caracte'ristiques, conjointement avec les renseignements sur le forage et la sismique, indiquent qu'il y aurait lieu d'effectuer d'autres travaun d'exploration sur la rivikre Noire. 'Contribution to Federal Asbestos Initiatives, Geoscience Research Program 1984-1987. Project carried by Geological Survey of Canada

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تاریخ انتشار 2013