Vol. s3-8, Issue 43, 1874July 01, 1874 EDT
On the Age of the Copper-Bearing Rocks of Lake Superior; and on the Westward Continuation of the Lake Superior Synclinal
On the Age of the Copper-Bearing Rocks of Lake Superior; and on the Westward Continuation of the Lake Superior Synclinal
Roland Duer Irving,
Irving, R. D. (1874). On the Age of the Copper-Bearing Rocks of Lake Superior; and on the Westward Continuation of the Lake Superior Synclinal. American Journal of Science, s3-8(43), 46–56. https://doi.org/10.2475/ajs.s3-8.43.46