Geological Survey Bulletin 1309 The Geologic Story of Isle Royale National Park

Agassiz, Louis, 1850, Lake Superior—its physical character, vegetation, and animals, compared with those of other and similar regions; with a narrative of the tour, by J. Elliot Cabot: Boston, Gould, Kendall and Lincoln, 428 p. Reprinted 1970 (American Environmental Studies), New York, Arno Press.

For the history buffs, a marvelous narrative of Agassiz' expedition along the north shore of Lake Superior nearly as far west as the Pigeon River, with frequent geologic observations.

Bird, J. B., 1972, The natural landscapes of Canada; a study in regional earth science: Toronto, Wiley Pub. Canada Limited, 191 p.

A description of the physical landscape and its origin, including a very readable summary of the glaciation of the Canadian Shield.

Courter, E. W., 1972, The chlorastrolite; now Michigan's official gem: Conglomerate, v. 33, no. 2, p. 3, 8, 10, 12.

The nature and history of chlorastrolite, from its discovery to its new honor.

Dorr, J. A., Jr., and Eschman, D. F., 1970, Geology of Michigan: Ann Arbor, Univ. Michigan Press, 476 p.

Excellent overview of the geology of Michigan, for the general reader.

Farrand, W. R., 1969, The Quaternary history of Lake Superior: Internat. Assoc. Great Lakes Research, 12th Conf., Great Lakes Research, 1969, Proc., p. 181-197.

Summary of the glacial and postglacial lakes in the Lake Superior basin and their changing outlets.

Flint, R. F., 1971, Glacial and Quaternary geology: New York, John Wiley & Sons, 892 p.

Standard text with broad coverage of continental glaciation in North America.

Foster, J. W., and Whitney, J. D., 1850, Report on the geology and topography of a portion of the Lake Superior Land District in the State of Michigan; Pt. 1, Copper lands: U.S. 31st Cong., 1st sess. House Executive Doc. 69, 224 p.

Primarily of historical interest with sketches of early explorations in the Lake Superior region and the initiation of copper mining, including descriptions of early activities on Isle Royale.

Griffin, J. B., ed., 1961, Lake Superior copper and the Indians—miscellaneous studies of Great Lakes prehistory: Michigan Univ. Mus. Anthropology, Anthropol. Paper 17, 189 p., 33 pl.

Includes extensive data on prehistoric activities of Indian copper miners on Isle Royale.

Halls, H. C., 1966, A review of the Keweenawan geology of the Lake Superior region, in The earth beneath the continents—a volume of geophysical studies in honor of Merle A. Tuve: Am. Geophys. Union Geophys. Mon. 10 (Natl. Acad. Sci.—Natl. Research Council Pub. 1467), p. 3-27.

Summary of the correlation of individual groups of Keweenawan rocks around the Lake Superior basin.

Huber, N. K., 1971, Pink copper-bearing prehnite from Isle Royale National Park, Michigan: Earth Science, v. 24, no. 1, p. 9-14.

Data on pink prehnite and discussion of its common confusion with thomsonite.

______ 1973a, Glacial and postglacial geologic history of Isle Royale National Park, Michigan: U.S. Geol. Survey Prof. Paper 754—A, 15p.

Comprehensive discussion of material simplified for this report.

______ 1973b, The Portage Lake Volcanics (middle Keweenawan) on Isle Royale, Michigan: U.S. Geol. Survey Prof. Paper 754—C, 32p.

Detailed description of the volcanic rock sequence on Isle Royale.

______ 1973c, Geologic map of Isle Royale National Park, Keweenaw County, Michigan: U.S. Geol. Survey Misc. Geol. Inv. Map I—796, scale 1:62,500.

Details of geology not possible to show on smaller scale maps in this report.

Kelley, R. W., and Farrand, W. R., 1967, The glacial lakes around Michigan: Michigan Geol. Survey Bull. 4, 23 p.

Excellent summary for the general reader.

Lane, A. C., 1898, Geological report on Isle Royale, Michigan: Michigan Geol. Survey, v. 6, pt. 1, 281 p.

First comprehensive report on the geology of Isle Royale includes descriptions of exploration activities on the island through 1896.

Mech, L. D., 1966, The wolves of Isle Royale: National Park Service Fauna Series 7, 210 p.

A fascinating account with emphasis on the predator-prey relationship of the wolf and moose.

Poindexter, O. F., Martin, H. M., and Bergquist, S. G., 1965, Rocks and minerals of Michigan [5th ed.]: Michigan Geol. Survey Bull. 2, 101 p.

Introduction to the origin, location, and basic uses of rocks and minerals found in Michigan.

Rakestraw, Lawrence, 1965, Historic mining on Isle Royale: Isle Royale Nat. Hist. Assoc., 20 p.

Summary of post-Indian mining and exploration activities on Isle Royale, 1843-92.

U.S. Geological Survey, 1957, Topographic map of Isle Royale National Park (culture revised 1970): scale 1:62,500.

Available in contour or shaded-relief edition.

White, W. S., 1960, The Keweenawan lavas of Lake Superior, an example of flood basalts: Am. Jour. Sci. (Bradley volume), v. 258—A, p. 367-374.

The rationale behind the interpretation of the Portage Lake Volcanics as flood basalts.

______ 1968, The native-copper deposits of northern Michigan, in Ridge, J. D., ed., Ore deposits of the United States, 1933-1967: New York, Am. Inst. Mining, Metall., and Petroleum Engineers, v. 1, p. 303-326.

One of the more recent sumnnaries of the nature and origin of Michigan's native-copper deposits.

Wolff, R. G., and Huber N. K., 1973, The Copper Harbor Conglomerate (middle Keweenawan) on Isle Royale, Michigan, and its regional implications: U.S. Geol. Survey Prof. Paper 754—B, 15 p.

Detailed description of the Copper Harbor Conglomerate on Isle Royale including discussion of its depositional environment.