@article {36447,
	title = {Identification of indurated siltstone layers in advance of oil sands mining},
	volume = {3},
	year = {1989},
	pages = {83-91},
	publisher = {International Journal of Mining, Reclamation and Environment},
	keywords = {Suncor},
	author = {Campbell, Dale and Scoble, Malcolm and Peck, John}
}
