Fresh Air Photo Wednesday, November 25th
posted on November 25th, 2009 - Filed in Uncategorized - No comments »We welcome a long distance fresh air photographer from Scarborough, Ontario ~ And what a debut! Amanda is from Scarborough and these cliffs are layers of sand and clay – and those layers have been traced back to the last stages of the Great Ice Age. The dimensions: they are 14 kms (8.7 mi) long, with some peaks as high as 65 metres (210 ft), or about 17 storeys. They are found along Lake Ontario.
The geology: the sediments contain the fossils of both animals and plants. in the first 46 metres (150 feet) are fossil plants & animals that were deposited in a large river delta,..oh about 70,000 years ago during the first advance of the Wisconsinan glacier. They are covered by 61 metres (200 feet) of boulder clay and sand in alternating layers left by four subsequent advances and retreats of ice. The final withdrawal of the glacier happened about 12,000 years ago.
DID YOU KNOW? The Scarborough bluffs were named in 1796 by Elizabeth Simcoe. (She was the wife of John Graves Simcoe, the first lieutenant governor of Upper Canada). They reminded her of the white cliffs near her home in Scarborough, Yorkshire, England. How cool is that!
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