Abstract
MISTASTIN LAKE (55° 52′N, 63° 22′W) occupies an elliptical, east–north-east trending depression, approximately 11 by 7 miles in size, cut into moderately rugged, barren hills of Pre-Cambrian granitoid and anorthositic rocks. The presence of a butte of flat lying volcanic rocks at the western end of the lake attracted the attention of S. Duffell and F. C. Taylor in 1965. The radiometric age of a sample from this occurrence (202 million years), and the presence of a horseshoe-shaped central island of Pre-Cambrian rocks, led me to suppose that a new crater of the type of the Clearwater Lakes1 and Manicouagan2 had been discovered. This hypothesis has now been confirmed by field mapping.
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References
Bostock, H. H., Geol. Surv. Canad. Paper 64–45 (1964).
Currie, K. L., and Murtaugh, J. G., Geol. Surv. Canad. Paper, 67–32 (1968).
Findlay, D. C., and Smith, C. H., Geol. Surv. Canad. Paper 66–13, 27 (1966).
Dence, M. R., in Shock Metamorphism of Natural Materials (Mono Books, Baltimore, 1968).
Currie, K. L., and Shafiqullah, M., Nature, 218, 45 (1968).
McCall, G. J. H., Adv. Space Sci., 8, 1 (1966).
Currie, K. L., Ann. NY Acad. Sci., 123, 915 (1965).
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CURRIE, K. Mistastin Lake, Labrador: A New Canadian Crater. Nature 220, 776–777 (1968). https://doi.org/10.1038/220776a0
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DOI: https://doi.org/10.1038/220776a0
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