Origin of vertical shafts in bedrock along the Eramosa River valley near Guelph, southern Ontario.

Autor: Kunert, Micheal, Coniglio, Mario

Publikováno v: Canadian Journal of Earth Sciences. Jan2002, Vol. 39 Issue 1, p43-52. 10p. 3 Black and White Photographs, 1 Diagram, 1 Chart, 1 Graph, 1 Map.