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Wisconsinan Inter-Lobal Stratigraphy in Three Quarries Near Woodstock

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Wisconsinan Inter-Lobal Stratigraphy in Three Quarries Near Woodstock Document généré le 30 sept. 2021 11:04 Géographie physique et Quaternaire Wisconsinan Inter-Lobal Stratigraphy in Three Quarries Near Woodstock, Ontario Stratigraphie interlobaire du Wisconsinien dans trois carrières des environs de Woodstock, en Ontario Interloben-Stratigraphie in der Zeit des Wisconsin in drei Steinbrüchen in der Nähe von Woodstock, Ontario Dariusz Krzyszkowski et P. F. Karrow Volume 55, numéro 1, 2001 Résumé de l'article La zone interlobaire des lacs Huron et Érié peut être étudiée dans la région de URI : https://id.erudit.org/iderudit/005657ar Woodstock. Trois grandes carrières de calcaire (Zorra, Beachville West et DOI : https://doi.org/10.7202/005657ar Beachville East) offrent des coupes jusqu'à 30 m de haut dans du matériel détritique. La granulométrie, la teneur en carbonate, la couleur, la structure, la Aller au sommaire du numéro fabrique, la lithologie et la séquence, ainsi que le tracé continu des contacts et des changements de faciès, ont permis de reconnaître dix tills et les sédiments lacustres reliés en corrélation avec la stratigraphie déjà connue dans les Éditeur(s) régions avoisinantes. On a identifié quatre principaux événements glaciaires, dont trois du Wisconsinien supérieur. Trois langues de Till de Canning rouge Les Presses de l'Université de Montréal (âge inconnu) du lobe du lac Érié sont recouvertes par le Drift de Catfish Creek (deux langues de till d'écoulement sud-ouest) du Stade de Nissouri (22 à 17 ka). ISSN Des séquences de sédiments glaciaires et non glaciaires similaires et apparamment corrélatives à l'intérieur du complexe de Catfish Creek (membre 0705-7199 (imprimé) de Centreville), à Zorra et Beachville West, laissent supposer l'existence d'une 1492-143X (numérique) marge glaciaire de direction nord-ouest vers le sud-est. Recouvrant ces séquences, on trouve les sédiments glaciolacustres (couches de Rayside) de Découvrir la revue l'Interstade d'Érié (16 ka), le Till de Port Stanley du Stade de Port Bruce (15-14 ka) du lobe du lac Érié, les couches glaciolacustres de Zorra, le Till de Tavistock du Stade final de Port Bruce du lobe du lac Huron (trois langues) et enfin un Citer cet article épandage de retrait glaciaire (graviers de Dunn's Corner). La sédimentation glaciolacustre répétée entre les dépôts pourrait être associée à la diminution Krzyszkowski, D. & Karrow, P. F. (2001). Wisconsinan Inter-Lobal Stratigraphy glacioisostatique des gradients et aux marges glaciaires avoisinantes. in Three Quarries Near Woodstock, Ontario. Géographie physique et L'existence de conditions interlobaires au Catfish Creek est peu probable ; il y a Quaternaire, 55(1), 3–22. https://doi.org/10.7202/005657ar plutôt eu des récurrences locales de type lobaire par la suite. Tous droits réservés © Les Presses de l'Université de Montréal,2001 Ce document est protégé par la loi sur le droit d’auteur. L’utilisation des services d’Érudit (y compris la reproduction) est assujettie à sa politique d’utilisation que vous pouvez consulter en ligne. https://apropos.erudit.org/fr/usagers/politique-dutilisation/ Cet article est diffusé et préservé par Érudit. Érudit est un consortium interuniversitaire sans but lucratif composé de l’Université de Montréal, l’Université Laval et l’Université du Québec à Montréal. Il a pour mission la promotion et la valorisation de la recherche. https://www.erudit.org/fr/ Géographie physique et Quaternaire, 2001, vol. 55, n° 1, p. 3-22, 11 fig., 2 tabl. WISCONSINAN INTER-LOBAL STRATIGRAPHY IN THREE QUARRIES NEAR WOODSTOCK, ONTARIO Dariusz KRZYSZKOWSKI and P.F. KARROW*, P.O. Box 202, PL-53-350, Wroclaw, Poland, and Department of Earth Sciences and Quaternary Sciences Institute, University of Waterloo, Ontario N2L 3G1. ABSTRACT, 2001, vol. 55, n° 1, 11 fig., 2 tabl., 55(1), 2001D. KRZYSZKOWSKI and P.F. KARROW The Huron-Erie interlobate RÉSUMÉ Stratigraphie interlobaire du Wis- ZUSAMMENFASSUNG Interloben-Strati- zone passes near Woodstock, Ontario. Three consinien dans trois carrières des environs de graphie in der Zeit des Wisconsin in drei Stein- large limestone quarries (Zorra, Beachville Woodstock, en Ontario. La zone interlobaire brüchen in der Nähe von Woodstock, Ontario. West, Beachville East) provide exposures up des lacs Huron et Érié peut être étudiée dans Drei große Kalkstein-Steinbrüche (Zorra, to 30 m high of the drift stratigraphy. Grain size, la région de Woodstock. Trois grandes carriè- Beachville West, Beachville East) liefern Auf- matrix carbonate, color, structure, fabric, lithol- res de calcaire (Zorra, Beachville West et Bea- schlüsse bis zu 30 m Höhe von der glazialen ogy, and sequence, along with continuous chville East) offrent des coupes jusqu’à 30 m Schotter-Stratigraphie. Korngröße, Matrix- tracing of contacts and facies changes, de haut dans du matériel détritique. La granu- Karbonat, Farbe, Struktur, Textur, Lithologie allowed recognition of ten tills and related lométrie, la teneur en carbonate, la couleur, la und Stadium zusammen mit der kontinuierli- water-laid sediments correlated with the structure, la fabrique, la lithologie et la chen Aufzeichung der Kontakte und Fazies- known stratigraphy in surrounding areas.Four séquence, ainsi que le tracé continu des con- Änderungen ließen 10 Tills und damit zusam- major glacial events are recognized, three of tacts et des changements de faciès, ont permis menhängende Seen-Sedimente erkennen, Late Wisconsinan age. Three tongues of red, de reconnaître dix tills et les sédiments lacus- die mit der bekannten Stratigraphie der Erie lobe Canning Till (unknown age) are over- tres reliés en corrélation avec la stratigraphie angrenzenden Gebiete korrelieren.Man lain by a Nissouri Stadial (22-17 ka) Catfish déjà connue dans les régions avoisinantes. On erkennt vier glaziale Hauptereignisse, drei Creek Drift complex (two till tongues, regional a identifié quatre principaux événements gla- davon aus der Zeit des Spät-Wisconsin.Drei southwest ice flow). Similar, apparently correl- ciaires, dont trois du Wisconsinien supérieur. Zungen roten Canning-Tills (Alter unbekannt) ative, glacial and non-glacial sediment Trois langues de Till de Canning rouge (âge von der Lobe des Erie-Sees sind von dem Cat- sequences within Catfish Creek Drift at Zorra inconnu) du lobe du lac Érié sont recouvertes fish Creek-Drift (zwei Till-Zungen, regionaler and Beachville West (Centreville Member) par le Drift de Catfish Creek (deux langues de Eisfluss nach Südwest) aus dem Nissouri-Sta- suggest a northwest-southeast-trending ice till d’écoulement sud-ouest) du Stade de Nis- dium (22-17 ka) überlagert. Ähnliche, offenbar margin. Overlying this are Erie Interstadial souri (22 à 17 ka). Des séquences de sédi- entsprechende glaziale und nichtglaziale (16 ka) glaciolacustrine sediments (Rayside ments glaciaires et non glaciaires similaires et Sediment-Stadien innerhalb des Catfish beds), Port Bruce Stadial (15-14 ka) Erie lobe apparamment corrélatives à l ’intérieur du com- Creek-Drifts bei Zorra und Beachville West Port Stanley Till, glaciolacustrine Zorra beds, plexe de Catfish Creek (membre de Centre- (Glied von Centreville) lassen auf einen von and final Port Bruce Stadial Huron lobe Tavis- ville), à Zorra et Beachville West, laissent Nordwesten nach Südosten gerichteten Eis- tock Till (three tongues), and deglacial out- supposer l’existence d’une marge glaciaire de saum schließen. Über diesem befinden sich wash (Dunn’s Corner gravels). Repeated direction nord-ouest vers le sud-est. Recou- glaziallimnische Sedimente (Schichten von glaciolacustrine sedimentation between tills vrant ces séquences, on trouve les sédiments Rayside) aus dem Erie-Interstadial (16 ka), may relate to glacioisostatically reduced gra- glaciolacustres (couches de Rayside) de Port Stanley-Till der Erie-Lobe aus dem Port dients and nearby ice lobe margins. There is l’Interstade d’Érié (16 ka), le Till de Port Stan- Bruce-Stadial (15-14 ka), glaziallimnische little evidence of Catfish Creek interlobate con- ley du Stade de Port Bruce (15-14 ka) du lobe Schichten von Zorra, Till von Tavistock des ditions and only independent lobal glacial du lac Érié, les couches glaciolacustres de Endstadials von Port Bruce der Lobe des advances later. Zorra, le Till de Tavistock du Stade final de Port Huron-Sees (drei Zungen) und schließlich Bruce du lobe du lac Huron (trois langues) et Anschwemmung von glazialem Rückzug (Kie- enfin un épandage de retrait glaciaire (graviers sel von Dunn's Corner). Wiederholte glazial- de Dunn’s Corner). La sédimentation glacio- limnische Sedimentierung zwischen den Tills lacustre répétée entre les dépôts pourrait être könnte mit der Abnahme der glazioisostati- associée à la diminution glacioisostatique des schen Gefälle und den nahe gelegenen Säu- gradients et aux marges glaciaires avoisinan- men der Eislobe zusammenhängen. Es gibt tes. L’existence de conditions interlobaires au wenig Beweise für die Existenz von Catfish Catfish Creek est peu probable ; il y a plutôt eu Creek-Interloben-Bedingungen. Es gab eher des récurrences locales de type lobaire par la später unabhängige glaziale Rückvorstöße suite. des Loben-Typs. Manuscrit reçu le 8 mai 2000 ; manuscrit révisé accepté le 23 mai 2001 * E-mail address: [email protected] 4 D. KRZYSZKOWSKI and P.F. KARROW INTRODUCTION Hydrogeological concern over water resources and groundwater protection has stimulated an upsurge of atten- tion to interlobate glaciofluvial deposits in southern Ontario. The Oak Ridges moraine, formed between the Simcoe and Ontario lobes in the northern Greater Toronto
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