Solution
David answered on
Dec 26 2021
References
1. Allen, R.C., 1912, Mineral resources of Michigan with statistical tables of production and value of
mineral products for 1910 and prior years: Mich., Geol. and Biol. Survey, Pub. 8, p. 365-366.
Barton, P. B., Jr. (and Simon, F. O.), 1972,
2. Gold content of Michigan native copper: in Geological Survey Research 1972, Chapter A;
U.S.G.S., Prof. Paper 800-A, p. A-4. Broderick, T.M., 1939, Geology of the Ropes gold mine,
Marquette County, Michigan: Econ. Geology, v. 40, no. 2, p. 115-128, 1945.
3. (Abstr: Econ. Geol., v. 34, no. 8, pp. 939- 940. Courtis, W. M, 1907, Gold in Michigan: Mich.,
Geol. Survey, Ann. Rept. 1906, p. 581- 584. Denning, R. M. 1948, Geology of the Ishpeming gold
ange: Mich., Geol....