Geology of the Caledon Outwash, Ontario

- Organization:
- Canadian Institute of Mining, Metallurgy and Petroleum
- Pages:
- 6
- File Size:
- 5976 KB
- Publication Date:
- Jan 1, 1984
Abstract
The Caledon Outwash is a large deposit of glaciofluvial gravel
and sand located 55 km north west of down town Toronto. For
the most part it was laid down in a meltwater channel fronting
the Paris Moraine about 14,000 years ago. Applying the braided
bar model of Eynon and Walker (1974) the principal facies
present are imbricated coarse gravels (bar corefacies); crudely
stratified, imbricated bar top sandy gravels; and trough crossbedded
side channel sands and gravelly sands. Of lesser importance
are crossbedded bar front gravels, shallow braided
stream facies gravels, and stoss side facies sands and pebbly
sands (rare). Lithologically these deposits are characterized by
FIGURE I. Geological relationships of Caledon Outwash.
Industrial Minerals in Canada
up to 95% Ordovician limestone and siltstone in the gravel
fraction. A siltstone content of up to 34% requires that
beneficiation be carried out for the production of better quality
aggregates. Resources remaining are estimated to exceed 500
million tonnes in 3000 ha of the most suitable part of the
deposit. Present production is about 4.5 million tonnes per
year, shared by several producers.
Citation
APA:
(1984) Geology of the Caledon Outwash, OntarioMLA: Geology of the Caledon Outwash, Ontario. Canadian Institute of Mining, Metallurgy and Petroleum, 1984.