1998
DOI: 10.1139/cjes-35-10-1152
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On the origin of the Oak Ridges Moraine

Abstract: Landscape analysis, mapping, sedimentology, shallow geophysics, and borehole data are integrated to better understand the complex landform-sediment geometries and event sequences of the Oak Ridges Moraine, southern Ontario. A model for the origin of the Oak Ridges Moraine is based on the recognition that the moraine is built on a high-relief, erosional surface (unconformity) consisting of drumlin uplands and a network of deep, steep-walled, interconnected valleys (tunnel channels). The development of the morai… Show more

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Cited by 25 publications
(56 citation statements)
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References 28 publications
(59 reference statements)
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“…In particular, the ca. 160 km long Oak Ridges Moraine (ORM) has been the focus of extensive sedimentological study aimed at understanding the geological history of the landform (Barnett et al, 1998;Sharpe et al, 2002).…”
Section: Introductionmentioning
confidence: 99%
“…In particular, the ca. 160 km long Oak Ridges Moraine (ORM) has been the focus of extensive sedimentological study aimed at understanding the geological history of the landform (Barnett et al, 1998;Sharpe et al, 2002).…”
Section: Introductionmentioning
confidence: 99%
“…The Oak Ridges moraine, formed between the Simcoe and Ontario lobes in the northern Greater Toronto Area, became a major mapping, drilling, and geophysics project to define the geometry and spatial relationships of aquifers and aquitards (Sharpe et al, 1996;Barnett et al, 1998) (Fig. 1).…”
Section: Introductionmentioning
confidence: 99%
“…In the Great Lakes region these features have been documented by, for example, Shaw (1988), Sharpe and Shaw (1989), Gilbert (1990), Shaw and Gilbert (1990), Kor et al (1991), Gilbert andShaw (1992, 1994), Brennand and Shaw (1994), Pair (1997), Barnett et al (1998), and Kor and Cowell (1998). This paper describes a large pothole on a ridge crest in southeastern Ontario in the context of the regional topography, and proposes its origin by subglacial fluvial processes.…”
Section: Introductionmentioning
confidence: 66%