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TitreThe Neoproterozoic Windermere Supergroup: an on-land continental margin turbidite system, British Columbia and Alberta
TéléchargerTéléchargements
AuteurRoss, G M
SourceCommission géologique du Canada, Dossier public 3932, 2000, 2 feuilles, https://doi.org/10.4095/211781 (Accès ouvert)
Image
Image
Année2000
Documentdossier public
Lang.anglais
DOIhttps://doi.org/10.4095/211781
CartesCette publication contient 2 cartes
Info. cartegéologique, 1/7,500,000
Info. cartegéologique, 1/2,500,000
Mediapapier; en ligne; numérique
Formatspdf; JPEG2000
ProvinceColombie-Britannique; Yukon; Territoires du Nord-Ouest
SNRC82E; 82F; 82G; 82J; 82K; 82L; 82M; 82N; 82O; 83B; 83C; 83D; 83E; 83F; 83G; 83J; 83K; 83L; 83M; 83N; 84D; 84E; 92H; 92I; 92J; 92O; 92P; 93A; 93B; 93C; 93F; 93G; 93H; 93I; 93J; 93K; 93L; 93M; 93N; 93O; 93P; 94; 95C; 95D; 95E; 103P; 104A; 104G; 104H; 104I; 104J; 104K; 104N; 104O; 104P; 105; 106C; 106D; 106E; 106F; 106L; 115H; 115I; 115J; 115N; 115O; 115P; 116; 117A; 117B; 117C
Lat/Long OENS-142.0000 -115.0000 70.0000 49.0000
Sujetsroches sédimentaires; marges continentales; turbidites; faciès sédimentaires; cônes alluviaux; affaissement; milieu sédimentaire; bassins sédimentaires; analyse du bassin; sables; carbonates; minéraux détritiques; zircon; datations radiométriques; corrélations stratigraphiques; Supergroupe de Windermere ; Formation de Toby ; Supergroupe de Purcell ; Complexe de Shuswap ; Gneiss de Malton ; sédimentologie; stratigraphie; tectonique; géochronologie; Protérozoïque
Illustrationsblock diagrams; stratigraphic sections; graphs
Diffusé2000 11 01
Résumé(disponible en anglais seulement)
The Windermere Supergroup is a regionally widespread succession of predominantly deep marine sedimentary rocks deposited on the continental margin of western Canada following its separation from Australia ca. 700 Ma. A vertical succession from sand-rich basin plain turbidites ta mud-rich slope facies occurs over a ca. 7 km thick stratigraphie interval and records the progradation of the continental margin attendant with diminished rates of thermally-driven subsidence. Although unfossiliferous and deformed in the Mesozoic, careful stratigraphie mapping, utilizing a lithologically distinct condensed interval (SHEET 2) and two carbonate-rich lowstand intervals have established regional continuity of this depositional system over ca. 4° of latitude. The continuity of the depositional system has also been established using geochronology of detrital zircons which reveals a uniform provenance throughout the southeastern Canadian Cordillera (SHEET 2). Taken in concert with facies patterns and paleocurrent data, the Windermere grits are interpreted as a longitudinal turbidite system that flowed west
GEOSCAN ID211781