Ontario Island: Difference between revisions
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'''Ontario Island''' was a glacial feature as lobes of the [[Laurentide glaciation]] receded from southern [[Ontario]].<ref name=JourneyIceAge/><ref name=WaterlooEloraFergus/> | '''Ontario Island''' was a glacial feature as lobes of the [[Laurentide glaciation]] receded from southern [[Ontario]].<ref name=JourneyIceAge/><ref name=WaterlooEloraFergus/> | ||
The glaciation started to retreat approximately 20,000 years ago. As it retreated its southern edge was ringed by a series of proglacial lakes. The relatively high ground, west of the [[Niagara Escarpment]] formed a large island in these lakes. | The glaciation started to retreat approximately 20,000 years ago. As it retreated its southern edge was ringed by a series of proglacial lakes. The relatively high ground, west of the [[Niagara Escarpment]] formed a large island in these lakes. | ||
Latest revision as of 16:18, 18 December 2023
Ontario Island was a glacial feature as lobes of the Laurentide glaciation receded from southern Ontario.[1][2] The glaciation started to retreat approximately 20,000 years ago. As it retreated its southern edge was ringed by a series of proglacial lakes. The relatively high ground, west of the Niagara Escarpment formed a large island in these lakes.
References
- ↑ Peter L. Storck (2011). Journey to the Ice Age: Discovering an Ancient World. UBC Press. ISBN 9780774841276. “The first part of Ontario to become ice free was the high ground west of the Niagara Escarpment in south-central Ontario, a region geologists call Ontario Island.”
- ↑ Elora and Fergus Geology. University of Waterloo. Retrieved on 2016-02-01. “The higher ground to the north of here, sometimes referred to as “Ontario Island,” because it was surrounded by shrinking ice lobes and growing glacial lakes, tended to deglaciate first.”