| Titre | Igneous and metamorphic U-Pb ages from volcanic and anatectic units in the Kakinagimak Lake area, northwestern Flin Flon Domain (parts of NTS 63M/01) |
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| Auteur | Rayner, N M ;
Maxeiner, R O |
| Source | Summary of Investigations 2008; Saskatchewan Department of Mineral Resources, Summary Report vol. 2, 2008 p. 1-10  Accès ouvert |
| Liens | Online - En ligne
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| Image |  |
| Année | 2008 |
| Séries alt. | Secteur des sciences de la Terre, Contribution externe 20080441 |
| Document | publication en série |
| Lang. | anglais |
| Media | papier |
| Formats | pdf |
| Province | Manitoba |
| SNRC | 63M/01 |
| Région | Pelican Narrows; Kakinagimak Lake |
| Lat/Long OENS | -102.5000 -102.0000 55.2500 55.0000 |
| Sujets | géologie du substratum rocheux; roches ignées; roches volcaniques; roches métamorphiques; datation radiométrique; datations au uranium-plomb; datation au uranium-plomb; rapports uranium-plomb;
métamorphisme; cristallisation; volcanisme; magmatisme; leucogranites; géochronologie; Précambrien; Protérozoïque |
| Illustrations | cartes de localisation; tableaux; photographies; diagrammes Concordia |
| Programme | L'Initiative géoscientifique ciblée (IGC-1), 2000-2003 |
| Diffusé | 2008 01 01 |
| Résumé | (disponible en anglais seulement)
New U-Pb geochronological results are presented for three samples from the Kakinagimak Lake area, east of Pelican Narrows. A sample of homogeneous
feldspar-phyric dacite interpreted as a subvolcanic intrusion yielded a crystallization age of 1846 ± 7 Ma and a metamorphic age constrained between 1.81-1.82 Ga. A plagioclase-phyric intermediate volcanic rock has a minimum crystallization age of
1831 ± 2 Ma and records metamorphic zircon growth at 1808 ± 4 Ma. A sample of anatectic leucogranite is interpreted to have been emplaced at 1807 ± 8 Ma. Inherited dates of 1957±12 Ma and, 1868 ± 6 Ma are also recorded in the leucogranite. |
| GEOSCAN ID | 225981 |
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