Report on the building and ornamental stones of Canada (1912)
Parks, William A. (William Arthur), 1868-1936, Canada. Mines Branch (1901-1936) · Ottawa : Dept. of Mines, Mines Branch · leaf 297
thick. It is ol)vi(uis that theadvancing sea did not invade the Ontario region until late in tlic piM-iod andin consequence only the uppci nicnilicis of this gr(\it foiiualion arc seen inthe province. The Inwci- portion of the formation, about 150 ivc{ thick,consists largely of shales and thin… … -i ^ r/ ^ o Jr r/>j>y</oro// \ /^ /f o /^ r ^ flf ^ c j}^ inp/t, Fig. 14. Sketch map showinti; ihe iirta^und importu(it quarries of the Chtizy fornmtion in Out 185 the ui)i)er cou.sist.s of two nicinbers, the lower of which is equivalent to thePamelia formation of New York and the upper to…
Building stones · Geology, Economic · Stone industry and trade
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