You can see that tar is constantly oozing out of the sand banks. It sometimes rolls down the slopes in little tar balls. The tar sands have been classified as Cretaceous and the limestone beneath is classified as Devonian. That means there is supposedly a 260-million-year gap between the two yet the strata in the two formations run parallel.
My geological friend Emil Silvestru, originally from Romania but now living in Canada, visited this site and has written an excellent article on it. See The Canadian Oil Sands: a different story.
Emil explains all the problems that the mainstream geological interpretation encounters and presents an interpretation within a biblical framework. He shows that the biblical interpretive framework provides simple solutions to the many problems for the evolutionary interpretation. The Canadian oil sands, a deposit that has major economic value, are consistent with a young planet.