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TitreGeochemical and isotopic (Nd, O, Pb and Sr) data from igneous rocks of the Notre Dame Subzone and adjacent tectonostratigraphic zones, western and central Newfoundland
AuteurWhalen, J B
SourceCommission géologique du Canada, Dossier public 7202, 2012, 16 pages, (Accès ouvert)
ÉditeurRessources naturelles Canada
Documentdossier public
Mediaen ligne; numérique
Formatspdf; xls; rtf
SNRC2E/04; 2E/05; 2M/04; 2M/05; 2M/12; 11O/10; 11O/11; 11O/14; 11O/15; 11O/16; 11P/13; 12A; 12B; 12G/01; 12G/08; 12H; 12I; 12P/01; 12P/02; 12P/07; 12P/08; 12P/09
Lat/Long OENS-59.5000 -55.0000 52.0000 47.5000
Sujetsroches plutoniques; roches volcaniques; roches intrusives; etudes isotopiques; isotopes d'oxygène; rapports des isotopes de plomb; rapports strontium-strontium; géochimie du néodyme; géochimie du strontium; cadre tectonique; géochimie des éléments en trace; géochimie des éléments majeurs; zones tectonostratigraphiques; Arc de Notre Dame ; Zone de Dunnage ; Zone d'Humber ; tectonique; géochimie; Ordovicien; Cambrien
Illustrationslocation maps; tables; plots; ternary diagrams
Bibliothèque de Ressources naturelles Canada - Ottawa (Sciences de la Terre)
ProgrammeÉtude des gîtes porphyriques, Initiative géoscientifique ciblée (IGC-4)
Diffusé2012 07 23
Résumé(disponible en anglais seulement)
The following report presents a compilation of geochemical and isotopic data collected in the course of a numbers of projects starting in 1981 with geological mapping and geochemical sampling of the Silurian Topsail igneous suite (TIS) (Whalen and Currie, 1988; Whalen et al., 1987a,b,c). A Canada-Newfoundland Cooperation Agreement (CNCA) (1990-1994) funded project focused mainly on Ordovician plutonism within the Notre Dame subzone (Fig. 1) (Whalen et al., 1997b) but included isotopic work on the TIS (Whalen et al., 1996). During the Red Indian Line Project, which was funded under the auspices of the 2000 to 2003 Targeted Geoscience Initiative (TGI), more extensive work was carried out within the southern Notre Dame subzone and the northern Dashwoods subzone (Whalen et al., 2006; van Staal et al., 2007, 2008). With funding from the 2005-2010 Targeted Geoscience Initiative 3 Program (TGI3) some further geochemical and isotopic work was carried out in the Buchans-Robert's Arm belt and the Burlington Peninsula, the results of which are included in this report.
The geochemical data presented herein should provide significant assistance in the regional correlation of units, as well as for constraining their tectonic setting and igneous petrogenesis. It complements previously released geochemical databases for central Newfoundland (e.g., Davenport et al., 1996; Jenner, 2002; Rogers, 2004; Zagorevski and Rogers, 2011).