GeoElements of Michigan’s Keweenaw:
Lavas    Sandstone    Fault    Glaciers    Lakehttp://www.geo.mtu.edu/KeweenawGeoheritage/KeweenawGeoheritage/GeoElements.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/BlackLavas/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/Sandstone/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/The_Fault/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/Glaciers/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/Lake/Welcome.htmlshapeimage_3_link_0shapeimage_3_link_1shapeimage_3_link_2shapeimage_3_link_3shapeimage_3_link_4shapeimage_3_link_5
Blake Pt.
Agate Harbor
Grand Marais

Gay Sands

Bete Grise

  1. Abel, C.D., 1985, Petrology and sedimentology of the Jacobsville sandstone (northern Michigan) and Bayfield Group (northern Wisconsin), [M.S. Thesis], University of Wisconsin, Madison, WI, 294 pp.

  2. Adamo, P. and Violante, P., 2000, Weathering of rocks and neogenesis of minerals associated with lichen activity, Applied Clay Science, v. 16, pp. 229-256.

  3. Albert, D.A., 2000, Born of the wind: An introduction to the ecology of Michigan sand dunes, Michigan Natural Features Inventory, Lansing, MI, 63pp. [PDF]

  4. Atwater, T. and Porter, S., 2009, The last deglaciation of North America, 21,400-5,700 years ago. [Movie]

  5. Barron, E.J., 1996, First case study: Plate tectonics and climate – episodes of extensive glaciation and extreme global warmth, in Climatic variation in Earth history, University Corporation for Atmospheric Research (UCAR), Boulder, CO. [PDF]

  6. Beard, J.S. and Day, H.W., 1986, Origin of gabbro pegmatite in the Smartville intrusive complex, northern Sierra Nevada, California, Am. Mineral., v. 71, pp. 1085-1099.  [PDF]

  7. Behrendt, J.C., Green, A.G., Cannon, W.F., Hutchinson, D.R., Lee, M.W., Milkereit, B., Agena, W.F., and Spencer, C., 1988, Crustal structure of the Midcontinent Rift system: Results from the GLIMPCE deep seismic reflection profiles, Geology, v. 16, pp. 81–85.

  8. Bjornerud, M., 2005, Reading the rocks: The autobiography of the Earth, Basic Books, New York, 256 pp.

  9. Bornhorst, T.J., 1975, Petrochemistry of the Fish Cove rhyolite, Keweenaw Peninsula, Michigan, U.S.A., Chem. Geol., v. 15, pp. 295-302.

  10. Bornhorst, T.J. and Brandt, D., 2009a, Michigan’s earliest geology: The Precambrian, in Schaetzl, R., Darden, J., and Brandt, D., eds., Michigan Geography and Geology, Pearson Custom Publishing, New York, pp. 24–39.

  11. Bornhorst, T.J. and Lankton, L.D., 2009b, Copper mining: A billion years of geologic and human history, in Schaetzl, R., Darden, J., and Brandt, D., eds., Michigan Geography and Geology, Pearson Custom Publishing, New York, pp. 150–173.

  12. Bornhorst, T.J. and Barron, R.J., 2011, Copper deposits of the western Upper Peninsula of Michigan, Geol. Soc. Am. Field Guide 24, pp. 83-99.  doi:10.1130/2011.0024(05).

  13. Bornhorst, T.J. and Barron, R.J., 2013, Geologic Overview of the Keweenaw Peninsula, Michigan, Institute on Lake Superior Geology Proceedings, 59th Annual Meeting, Houghton, MI, Part 2 – Field Trip Guidebook, v. 59, pp. 1 - 42.  ISSN 1042-9964. [PDF]

  14. Bornhorst, T.J., Paces, J.B., Grant, N.K., Obradovich, J.D., and Huber, N.K., 1988, Age of native copper mineralization, Keweenaw Peninsula, Michigan, Econ. Geol. Bull. Soc. Econ. Geol., v. 83, pp. 619–625.  doi: 10.2113/gsecongeo.83.3.619.

  15. Brennan, C.E., 1995, Cavitation and Bubble Dynamics, Oxford University Press, New York, ISBN 019509409. Retrieved from: http://resolver.caltech.edu/CaltechBOOK:1995.001

  16. Bricker, D.M., 1977, Seismic Disturbances in Michigan, GIMDL-Circular 14, Department of Natural Resources, Geology Division, Lansing, MI, 5 pp. [PDF]

  17. Broderick, T.M., 1929, Zoning in Michigan copper deposits and its significance, Econ Geol, v. 24, pp. 311-326. [PDF]

  18. Broderick, T.M., 1931, Fissure vein and lode relations in Michigan copper deposits, Econ. Geol., v. 26, pp. 840-856. doi:10.2113/gsecongeo.26.8.840

  19. Broderick, T.M., 1935, Differentiation in lavas of the Michigan Keweenawan, Geol. Soc. Am. Bull., v. 46, pp. 503-58.

  20. Broderick, T.M., Hohl, C.D., and Eidemiller, H.N., 1946, Recent contributions to the geology of the Michigan copper district, Economic Geology, v. 41, pp. 675-725.

  21. Bruno, B.C., Taylor, G.J., Rowland, S.K., Lucey, P.G., Self, S., (1992, Lava flows are fractals, Geophys. Res. Lett., v. 19, pp. 305-308.

  22. Budd, J., Kerfoot, W.C., Pilant, A., and Jipping, L.M., 1999, The Keweenaw current and ice rafting:  use of satellite imagery to investigate copper-rich particle dispersal,  J. Great Lakes Res. v. 25, pp. 642-662. [PDF]

  23. Butler, B.S. and Burbank, W.S., 1929, The copper deposits of Michigan, USGS Prof. Pap. 144, 238 pp.  [online book]

  24. Butterfield, N.J., Knoll, A.H., and Swett, K., 1988, Exceptional preservation of fossils in an Upper Proterozoic shale, Nature, v. 334, pp. 424-427.  doi:10.1038/334424a0

  25. Campbell, B.A. and Campbell, D.B., 1992, Analysis of volcanic surface morphology on Venus from comparison of Arecibo, Magellan and terrestrial airborne radar data,  J. Geophys. Res., v. 97, pp. 16293-16314.

  26. Cannon, W.F., 1994, Closing of the Midcontinent Rift: a far-field effect of Grenvillian compression, Geology, v. 22, pp. 155-158. doi:10.1130/0091-7613(1994)022<0155:COTMRA>2.3.CO;2

  27. Cannon, W.F. and Nicholson, S.W., 2000, Geologic Map of the Keweenaw and Adjacent Area Michigan to accompany USGS Map I-2696, 7 pp. [Pamphlet]

  28. Cannon, W.F. and Nicholson, S.W., 2001, Geologic Map of the Keweenaw and Adjacent Area Michigan, USGS Map I-2696. Scale = 1:100,000.

  29. Chen, J., Blume, H-P., Beyer, L., 2000, Weathering of rocks induced by lichen colonization – a review, Catena, v. 39, pp. 121-146.  [PDF]

  1. Cornwall, H.R., 1951a, Differentiation in Magmas of the Keweenawan Series, J Geol, v. 59, pp. 151-172. [online article]

  2. Cornwall, H.R., 1951b, Differentiation in lavas of the Keweenawan series and the origin of the copper deposits of Michigan, Geol. Soc. Am. Bull., v. 62, pp. 159-202.

  3. Cornwall, H.R., 1954a, Bedrock geology of the Delaware, Michigan, USGS Geologic Quadrangle Map GQ-51, scale 1:24,000.

  4. Cornwall, H. R., 1954b, Bedrock geology of the Lake Medora quadrangle, Michigan, USGS Geologic Quadrangle Map GQ-52, scale 1:24,000.

  5. Cornwall, H.R., 1954c, Bedrock geology of the Phoenix quadrangle, Michigan, USGS Geologic Quadrangle Map GQ-34, scale 1:24,000.

  6. Cornwall, H.R., 1955, Bedrock geology of the Fort Wilkins quadrangle, Michigan, USGS Geologic Quadrangle Map GQ-74, scale 1:24,000.

  7. Cornwall, H.R. and White, W.S., 1955, Bedrock geology of the Manitou Island quadrangle, Michigan, USGS Geologic Quadrangle Map GQ-73, scale: 1:24,000.

  8. Cornwall, H.R. and Wright, J.C., 1954, Bedrock geology of the Eagle Harbor quadrangle, Michigan. USGS Geologic Quadrangle Map GQ-36, scale: 1:24,000.

  9. Cornwall, H.R. and Wright, J.C., 1956, Geology of Laurium Quadrangle, Michigan, USGS  Mineral Investigations Field Studies Map MF 47, scale 1:24,000.

  10. Crisp, J. and Baloga, S., 1994, The influence of crystallization and entrainment of cooler material on the emplacement of basaltic aa lava flows, J. Geophys. Res., v. 99, pp. 11819-11831.

  11. Cummings, K. and Bjornerud, M., 2011, Possible eukaryotic macrofossils in the 1.1 Ga Copper Harbor Formation, Michigan, Institute on Lake Superior Geology, 57th Annual Meeting Proceedings Volume 57 Part 1 – Program and Abstracts, Fitz, T., Mills, A., Wilson, K., Bodette, C. and Cramer, D., eds., pp. 22-23. [PDF]

  12. Cusack, C.C. and Mihelcic, J.R., 1999, Sediment toxicity from copper in the Torch Lake (MI) great lakes area of concern, J. Great Lakes Res., v. 25, pp. 735-743. [PDF]

  13. Davis, D.W. and Paces, J.B., 1990, Time resolution of geologic events on the Keweenaw Peninsula and implications for development of the Midcontinent Rift system, Earth Planet. Sc. Lett., v 97, pp. 54–64. doi: 10.1016/0012-821X(90)90098-I.

  14. Davis, D.W. and Green, J.C., 1997, Geochronology of the North American Midcontinent Rift in western Lake Superior and implication for its geodynamic evolution, Can. J. Earth Sci., v. 35, pp. 476-488.

  15. Davidson, E.S., Espenshade, G.H., White, W.S. and Wright, J.C., 1955, Bedrock geology of the Mohawk quadrangle, Michigan, USGS Geologic Quadrangle Map GQ-54, scale 1:24,000.

  16. DeGraff, J. M., 1976, Structural and age relationships at the Lac La Belle magnetic anomaly, Keweenaw County, Michigan, Institute on Lake Superior Geology, Proceedings of the 22nd Annual Meeting, St. Paul, MN, v. 22, pp. 19-20. [abstract]

  17. DeGraff, J.M. and Aydin, A., 1993, Effect of thermal regime on growth increment and spacing of contraction joints in basaltic lava, J. Geophys. Res., v. 98(B4), pp. 6411-6430. doi:10.1029/92JB01709

  18. DeGraff, J.M., Long, P.E., and Aydin, A., 1989, Use of joint-growth directions and rock textures to infer thermal regimes during solidification of basaltic lava flows, J. Volcanol. Geotherm. Res., v. 38, pp. 309-324.

  19. Diehl, J.F., Durant, A.J., and Schepke, C., 2009, Paleomagnetism of Silver Island, Keweenaw Peninsula, Michigan: Additional support (?) for the primary curvature of the MCR, American Geophysical Union, Spring Meeting 2009, Abstract #GP11E-01, 2009AGUSMGP11E.01D

  20. Ding, X., Ripley, E.M., Shirey, S.B., and Li, C., 2012, Os, Nd, O, and S isotopic constraints on country rock contamination in the conduit-related Eagle Cu-Ni-(PGE) deposit, Midcontinent Rift system, Upper Michigan, Geochim. Cosmochim. Acta, v. 89, pp. 10-30.

  21. Docekal, J., 1970, Earthquakes of the stable interior, with emphasis on the midcontinent, Ph.D. dissertation on file in Library, University of Nebraska, Lincoln, NE.

  22. Dorr, J.A. and Eschman, D.F., 1970, Geology of Michigan. University of Michigan Press, Ann Arbor, MI, pp. 488.

  23. Earth Science Literacy Initiative, 2009, Earth Science literacy principles. 13 pp. [Brochure]

  24. Eckert, K.B., 2000, The Sandstone Architecture of the Lake Superior Region, Wayne State University Press, Detroit, M, 344 pp.

  25. Edsal, T.A., 1998, Great Lakes, pp. 219-254 in Mac, M.J., Opler, P.A., Puckett Haecker, C.E., and Doran, P.D., Status and trends of the nation’s biological resources. Vol. 1. U.S. Department of the Interior, U.S. Geological Survey, Reston, VA, 436 pp. [PDF]

Silver Island
  1. Elmore,R.D. 1983, Precambrian non-marine stromatolites in alluvial fan deposits, the Copper Harbor Conglomerate, upper Michigan, Sedimentology, v. 30, pp. 829-842.

  2. Elmore, R.D., 1984, The Copper Harbor Conglomerate: A late Precambrian fining-upward alluvial fan sequence in northern Michigan, Geol. Soc. Am. Bull., v. 95, pp. 610–617. doi:10.1130/0016-7606(1984)95<610:TCHCAL>2.0.CO;2

  3. [PDF]

  4. Farrand, W.R., 1988, The Glacial Lakes around Michigan, Bulletin 4, MI Department of Environmental Quality, Geological Survey Division, Lansing, MI, [PDF]

  5. Fisher, W.L., 1969, Facies characterization of Gulf Coast basin delta systems, with some Holocene analogues, Gulf Coast Assn of Geological Societies Transactions, v. 19, pp. 239-261.

  6. Foster, J.W. and Whitney, J.D., 1850a, Report on the geology and topography of a portion of the Lake Superior land district, in two parts. Part I: Copper lands, 3 maps, House of Representatives, 31st. Congress, Washington, D.C. [PDF]

  7. Foster, J.W. and Whitney, J.D., 1850b, Geological map of the district between Portage Lake and Montreal River, Lake Superior, Michigan, assisted by S.W. Hill and W. Schlatter,  accompanies “ Report on the geology and topography of a portion of the Lake Superior land district. Part I:  Copper lands.” Washington, D.C.

  8. Foster, J.W. and Whitney, J.D., 1851, Geological map of the Keweenaw Point, Lake Superior, Michigan, accompanies “ Report on the geology and topography of a portion of the Lake Superior land district. Part I:  Copper lands.”  Washington, D.C.

  9. Frantti, G.E., 1982, Seismicity investigation of Southern Lake Superior Precambrian province, final report 1977-81, U.S. Nuclear Regulatory Commission, Michigan Technological University, Houghton, MI, 70 pp. 

  10. Gillespie, R., Harrison, W.B., III, and Grammer, G. M., 2008, Geology of Michigan and the Great Lakes, Michigan Geological Repository for Research and Education, Western Michigan University, Cengage Brooks/Cole, Canada, 39 pp. [Brochure]

  11. Goff, F. E., 1996, Vesicle cylinders in vapor-differentiated basalt flows, J. Volcanol. Geotherm. Res.,v.  71, pp. 167-185. [PDF]

  12. Goode, J.R. and Wohl, E., 2008, Spatial Patterns and Effectiveness of Potholes at two spatial scales: A field example, American Geophysical Union, Fall Meeting 2008, abstract #H53B-1020, 12/2008, 2008AGUFM.H53B1020G

  13. Goodge, J.W., Vervoort, J.D., Fanning, C.M., Brecke, D.M., Farmer, G.L., Williams, I.S., Myrow, P.M., and DePaolo, D.J., 2008, A Positive Test of East Antarctica-Laurentia Juxtaposition Within the Rodinia Supercontinent, Science, v. 321, pp. 235-240. [PDF]

  14. Gordon, D.W., 1988, Revised instrumental hypocenters and correlation of earthquake locations and tectonics in the central United States, USGS Prof Paper 1364, 69 pp.

  15. Green, J.C., 1989, Physical volcanology of mid-proterozoic plateau lavas: the Keweenawan North Shore Volcanic Group, Minnesota, Geol. Soc. Am. Bull., v. 101, pp. 486-500.

  16. Hack, J.T., 1965, Postglacial Drainage evolution and stream geometry in the Ontonagon area, Michigan, USGS Geological Survey Professional Paper 504-B, U.S. Gov. Printing Office, Washington, D.C.

  17. Halls, H.C. and Pesonen, L.J., 1982, Paleomagnetism of Keweenawan rocks, in Wold, R.J. and Hinze, W.J., eds., Geology and Tectonics of the Lake Superior Basin, Geo. Soc. Am. Mem., v. 156, pp. 173-201.

  18. Hamblin, W.K., 1958, Cambrian sandstones of northern Michigan, Publication 51, Michigan Department of Conservation, Geological Survey Division, Lansing, MI, 146 pp. [PDF]

  19. Hansen, J., Sato, M., Ruedy, R., Lo, K., Lee, D.W. and Medina-Elizade, M., 2006, Global  temperature change.  Proceedings of the National Academy of Sciences of the United States of America (PNAS).  Vol. 103, no. 39, pp. 14288-14293,  doi:10.1073/pnas.0606291103.  Retrieved from: http://www.pnas.org/content/103/39/14288.full

  20. Held, I.M., 2013, Climate science: The cause of the pause, Nature, v. 510, pp. 318-319,  doi:10.1038/501318a

  21. Hobbs, W.H., 1911, Earthquakes in Michigan, Michigan Geological and Biological Survey, Publication 5, Part II, 11 pp. [PDF]

  22. Hobbs, W.H., 1944, Biographical Memoir of Frank Leverett, 1859-1943, National Academy of Sciences, Biographical Memoirs, v. XXIII-Eighth Memoirs, pp. 201-215. [PDF]

  23. Hollings, P., Fralick, P., and Cousens, B., 2007, Early history of the Midcontinent Rift inferred from geochemistry and sedimentology of the Mesoproterozoic Osler Group, northwestern Ontario, Can. J. Earth Sci., v. 44, pp. 389–412. doi:10.1139/e06-084

  24. Hon, K., Kauahikaua, J., Denlinger, R., and Mackay, K., 1994, Emplacement and inflation of pahoehoe sheet flows; observations and measurements of active lava flows on Kilauea Volcano, Hawaii, Geol. Soc. Am. Bull., v. 106(3), pp. 351–370.

  25. Hubbard, H., 1975, Lower Keweenawan volcanic rocks of Michigan and Wisconsin, J. Research U.S. Geol. Survey, v. 3, pp. 529-541. [PDF]

  26. Huber, N.K., 1969, Pink copper-bearing prehnite from Isle Royale National Park, Michigan, USGS Prof Pap., No. 650-D, pp. D 63-68.

  27. Huber, N.K., 1973, Geologic map of Isle Royale National Park, Keweenaw County, Michigan, USGS Map No. I-796. [Map]

  28. Huber, N.K., 1973a, The Portage Lake Volcanics (middle Keweenawan) on Isle Royale, Michigan, USGS Prof Pap., No. 754-C, 32 pp. [PDF]

  29. Huber, N.K, 1973b, Glacial and postglacial geologic history of Isle Royale National Park, Michigan, USGS Prof Pap. No. 754-A, 15 pp. [PDF]

  30. Huber, N.K., 1983, The geologic story of Isle Royale National Park. USGS Bull. No. 1309, 66 pp.

  31. Hutchinson. D.R., White, R.S., Cannon, W.F., and Schulz, K.K., 1990, Keweenaw hot spot: Geophysical evidence for a 1.1 Ga mantle plume beneath the Midcontinent Rift System. J. Geophys. Res., v. 95, pp. 10869-10884. doi: 10.1029/JB095iB07p10869

  1. Institute for Fisheries Research, Division of Fisheries, Michigan Department of Conservation, July 1938, Gratiot Lake.  [Map]

  2. Irving, E.D. and Chamberlin, T.C., 1885, Observations on the junction between the eastern sandstone and the Keweenaw series on Keweenaw Point, Lake Superior, Bulletin of the United States Geological Survey No. 23, U.S. Government Printing Office, Washington, D.C., 58 pp.  [PDF]

  3. Johnson, P.R., 1998, Tectonic map of Saudi Arabia and adjacent areas, Deputy Ministry for Mineral Resources Technical Report, USGS-TR-98-3 (IR-948)  [Map]

  4. Jolly, W.T., 1974, Behavior of Cu, Zn, and Ni during prehnite-pumpellyite rank metamorphism of the Keweenawan basalts, northern Michigan, Econ. Geol. Bull. Soc. Econ. Geol., v. 69, pp. 1118–1125.

  5. Karlstrom, K.E., Harlan, S.S., Williams, M.L., McLelland, J., Geissman, J.W., and Ahaell, K., 1999, Refining Rodinia: Geologic evidence for the Australia Western U.S. (AUSWUS) connection for Proterozoic supercontinent reconstructions, GSA Today, v. 9(10), pp. 1-7.

  6. Kalliokoski, J., 1982, Jacobsville Sandstone,  in Wold, R.J. and Hinze, W.J. eds., The geology and tectonics of the Lake Superior basin. Geological Society of America Memoir, v. 156, pp. 147-155.

  7. Kerfoot, W.C., Harting S., Rossman, R., and Robbins, J.A., 1999, Anthropogenic copper inventories and mercury profiles from Lake Superior: Evidence for mining impacts, J. Great Lakes Res. v. 25(4), pp. 663-682. [PDF]

  8. Kern, A.N., Kulakov, E.V., Smirnov, A.V., Diehl, J.F., and Chamberlain, K., 2012, Paleomagnetism of the Coldwell Complex (Ontario, Canada): New data and new insights, American Geophysical Union Fall meeting, abstract GP21A-1131.

  9. Kilburn, C.R.J. and Luongo, G. (1993). Active lavas - monitoring and modeling.  London: UCL Press,  384 pp.

  10. Kling, G.W., Hayhoe, K, Johnson, L.B., Magnuson, J.J., Polasky, S, Robinson, S.K.,. . . Zak, D.R., (2003), Confronting climate change in the Great Lakes region:  Impacts on our communities and ecosystems, University of Concerned Scientists & Ecological Society of America Publications, Cambridge, MA, 92 pp. [PDF]

  11. Krause, D.J., 1989, Testing a Tradition: Douglass Houghton and the native copper of Lake Superior, Isis, v. 80(4), pp. 622-639.  [article]

  12. Kulakov, E.V., Smirnov, A.V., and Diehl, J.F., 2013, Paleomagnetism of
    1.09 Ga Lake Shore Traps (Keweenaw Peninsula, Michigan): new results and implications, Can. J. Earth Sci., v. 50(11), pp. 1085-1096.  doi: 10.1139/cjes-2013-0003.
  13. Kumar, R., Suresh, N., Satish, S.J., and Kumaravel,V., 2007, Evolution of the Quaternary alluvial fan system in the Himalayan foreland basin:  Implications for tectonic and climatic decoupling, Quaternary International v. 159, pp.6-20.  [PDF]

  14. Lacroix, A., 1928, Les pegmatitoides des roches volcaniques a facies basaltiques, Acad. Sci. [Paris] Comptes Rendus, v. 187, pp. 321-326.

  15. Lacroix, A., 1929, Les pegmatitoides des roches volcaniques a facies basaltiques: a propos de celles du Wei-Tchang, Bull. Geol. Soc. China, v. 8, pp. 45-49.  doi: 10.1111/j.1755-6724.1929.mp8001005.x.

  16. Lane, A.C., 1893, Geological report on Isle Royale, Michigan, Geol. Surv. of Michigan, v. 6, pp. 1-265.

  17. Lane, A.C., 1911, The Keweenaw series of Michigan, Michigan Geol. and Biol. Surv. Pub. 6, Geol. Series 4, v. 2, 983 pp.

  18. Lane, A.C. and Seaman, A.E., 1907, Notes on the geological section of Michigan, Part 1. The pre-Ordovician, J. Geol., v. 15, pp. 680-695.

  19. Larson, G. and Schaetzl, R., 2001, Origin and evolution of the Great Lakes, J Great Lakes Res, v. 27, pp. 518-546.

  20. Lee, K., 2004, The Missoula Flood.  Online at http://ice.tsu.ru/files/paul/MissoulaFloodbyKeenanLee.pdf

  21. Leece, Scott A., 1990, The alluvial fan problem, Chapter 1, pp. 3-21, in Rachocki, A.H. and Church, M., eds., Alluvial fans: A field approach, John Wiley & Sons, Ltd., New York, 391 pp.

  22. Leverett, F., 1929, Moraines and shorelines of the Lake Superior Basin, Department of the Interior, USGS Professional Paper 154-A, 67 pp. [PDF]

  23. Lillie, R.J., 2005, Parks and plates: The geology of our national parks, monuments, and seashores, W.W. Norton and Company, New York, 298 pp.

  24. Lindsley, D.H., Smith, D., and Haggerty, S.E., 1971, Petrography and mineral chemistry of a differentiated flow of Picture Gorge Basalt near Spray, Oregon, Carnegie Inst. of Washington, Yearbook 69, pp. 264-285.

  25. Lofgren, G.E., 1971, Experimentally produced devitrification textures in natural rhyolitic glass, Geol. Soc. Am. Bull., v 82, pp. 111-124.

  26. Lofgren, G.E., 1980, Experimental studies on the dynamic crystallization of silicate melts, in Hargraves, R.B., ed., Physics of Magmatic Processes, Princeton Univ. Press, Princeton, NJ, pp. 487-551.

  27. Long, P.E. and Wood, B.J., 1986, Structures, textures and cooling histories of Columbia River basalt flows, Geol. Soc. Am. Bull., v. 97(9), pp. 1144-1155.

  28. Longo, A.A., 1984, A correlation for a middle Keweenawan flood basalt: the Greenstone flow, Isle Royale and Keweenaw Peninsula, Michigan, M.S. thesis, Michigan Technological University, Houghton, MI, 198 pp.

  29. Louv, R., 2009, Last child in the woods: saving our children from nature-deficit disorder, Algonquin Books of Chapel Hill, Chapel Hill, NC, 390 pp.

  30. Macdonald G.A., 1953, Pahoehoe, aa, and block lava, Am. J. Sci., v. 251, pp. 169–191.

  31. Mangan, M.T. and Marsh, B.D., 1992, Solidification front fractionation in phenocryst -free sheet-like magma bodies, J. Geol., v. 100, pp. 605-620.

  32. Marsh, B.D., Gunnarsson, B., Congdon, R., and Carmody, R., 1991, Hawaiian basalt and Icelandic rhyolite: indicators of differentiation and partial melting, Geol. Rundsch., v. 80(2), pp. 481-510.

  33. Marshall, J., 2013, North America’s broken heart, Nature, v. 504, pp. 24-26. [PDF]

  34. Martin, S.R., 1995, Michigan prehistory facts: The state of our knowledge about ancient copper mining in Michigan, The Michigan Archaeologist, v. 41(2-3), pp. 119-138. [Article]

  35. Martin, S.R., 1999, Wonderful Power: The Story of Ancient Copper Working in the Lake Superior Basin, Wayne State University Press, Detroit, MI, 284 pp.  [Book preview]

  36. McKee, B. and Stradling, D., 1970, The sag flowout: a newly described volcanic structure, Geol. Soc. Am. Bull., v. 81, pp. 2035-2044.

  37. Merino, M., Keller, G.R., Stein, S. and Stein, C., 2013, Variations in Mid-Continent Rift magma volumes consistent with microplate evolution, Geophys. Res. Lett., v. 40, pp. 1513-1516.  doi:10.1002/grl.50295.

  38. Merk, G.P. and Jirsa, M.A., 1982, Provenance and tectonic significance of the Keweenawan interflow sedimentary rocks, Geol. Soc. Am. Mem., v. 156, pp. 97-105.

  39. Miller, C.F. and Wark, D.A., 2008, Supervolcanoes and their explosive supereruptions. Elements, v. 4, pp. 11-16.  doi: 10.2113/GSELEMENTS.4.1.11  [PDF]

  40. Miller, J.D., Jr., Nov. 2007, The Midcontinent Rift in the Lake Superior region, IAVCEI Large Igneous Provinces Commission. Retrieved from http://www.largeigneousprovinces.org/07nov

  41. Mitchell, R.L. and Sheldon, N.D., 2010, The 1100Ma Sturgeon Falls paleosol revisited: Implications for Mesoproterozoic weathering environments and atmospheric CO2 levels,  Precambrian Research, v. 183(4), pp. 738-748.  doi:10.1016/j.precamres.2010.09.003.

  42. Montgomery, K., 2003, Siccar Point and teaching the history of geology, Journal of Geoscience Education, v. 51(5), pp. 500-505.

  43. Morton, R. and Gawboy, C., 2000, Talking rocks:  Geology and 10,000 years of Native American tradition in the Lake Superior region.  University of Minnesota Press, Minneapolis, MN, 224 pp.

  44. Murray, R.C., 1955, Late Keweenawan or early Cambrian glaciation in upper Michigan, Geol Soc. Am. Bull., v. 66, pp. 341-344.

  45. Neff, B. P. and Nicholas, J.R., 2005, Uncertainty in the Great Lakes Water Balance, USGS Scientific Investigations Report 2004-5100, 42 pp. [PDF]

  46. Nevanlinna, H. and Pesonen L.J., 1983, Late Precambrian Keweenawan asymmetric polarities as analyzed by axial offset dipole geomagnetic models, J. Geophys. Res., v. 88, pp. 645–658.

  47. Nicholson, S.W., Shirey, S.B., Schulz, K.J., and Green, J.C., 1997, Rift-wide correlation of 1.1 Ga Midcontinent Rift System basalts; implications for multiple mantle sources during rift development, Can. J. Earth Sci., v. 34, pp. 504-520. [PDF]

  48. Nofke, N., 2008, Turbulent lifestyle:  Microbial mats on Earth’s sandy beaches – Today and 3 billion years ago, GSA Today, v. 18(10), pp, 4-9. doi: 10.1130/GSATG7A.1. [PDF]

  49. Noffke, N. and Awramik, S.M., 2013, Stromatolites and MISS – Differences between Relatives, GSA Today, v. 23(9), pp. 4-9.  doi: 10.1130/GSATG187A.1

  50. Ojakangas, R.W., Dickas, A.B., and Green, J.C., 1997, Petrography and sedimentation of the Middle Proterozoic (Keweenawan) Nonesuch Formation, western Lake Superior region, Midcontinent Rift System, GSA Special Paper 312, pp. 195-210.  [PDF]

  51. Ojakangas, R.W., Morey, G.B., and Green J.C., 2001, The Mesoproterozoic Midcontinent Rift system, Lake Superior region, USA, Sediment. Geol., v. 141-142, pp. 421-442.

  52. Ojakangas, R.W. and Dickas, A.B., 2002, The 1.1-Ga Midcontinent Rift System, central North America: sedimentology of two deep boreholes, Lake Superior region, Sediment Geol, v. 147(1-2), pp. 13-36.

  53. Our Rock Riches, Bulletin 1. A selected collection of reprinted articles on Michigan’s mineral resources by various authors, 1964, State of Michigan, Department of Conservation, Geological Survey, Lansing, MI, 47 pp.  [PDF]

  54. Paces, J.B., 1988, Magmatic processes, evolution and mantle source characteristics contributing to the petrogenesis of Midcontinent Rift basalts: Portage Lake Volcanics, Keweenaw Peninsula, Michigan, Ph.D. Dissertation, Michigan Technological University, Houghton, MI, 413 pp.

  55. Paces, J.B. and Miller, J.D., Jr., 1993, Precise U-Pb ages of Duluth complex and related mafic intrusions, northeastern Minnesota: geochronological insights to physical, petrogenetic, paleomagnetic, and tectonomagmatic processes associated with the 1.1 Ga Midcontinent Rift system, J. Geophys. Res., v. 98, pp. 13997-14013.

  56. Palmer, H.C., 1970, Paleomagnetism and correlation of some Middle Keweenawan rocks, Lake Superior, Can. J. Earth Sci., v. 7, pp. 1410-1436. doi: 10.1139/e70-136.

  57. Pantell, H., 1971, The Story of the Ontonagon Copper Boulder,  The Mineralogical Record, Sept-Oct. 1976, originally published in: Smithsonian Institution Press, Washington D.C. [PDF]

  58. Pesonen, L. J. and Halls, H.C., 1983, Geomagnetic field intensity and reversal asymmetry in late Precambrian Keweenawan rocks, Geophys. J. R. Astr. Soc., v. 73, pp. 241-270. doi: 10.1111/j.1365-246X.1983.tb03816.x

  59. Porter, S.M., 2006, The Proterozoic fossil record of heterotrophic Eukaryotes, in Xiao, S. and Kaufman, A.J.,eds., Neoproterozoic Geobiology and Paleobiology, Springer, The Netherlands, p. 1-15. [PDF]

  60. Pesonen L.J. and Nevanlinna, H., 1981, Late Precambrian Keweenawan asymmetric reversals, Nature, v. 294, pp. 436-439.

  61. Pinkerton, H. and Wilson, L., 1994, Factors controlling the length of channel-fed flows, Bull. Volcanol., v. 56, pp. 108-120.

  62. Powell, C.McA., Jones, D.L., Pisarevsky, S.A., and Wingate, M.T.D., 2001, Paleomagnetic constraints on the position of the Kalahari craton in Rodinia, Precambrian Research, v. 110, pp. 33-46.

  63. Prata, A.J., O’Brien, D., Rose, W.I., and Self, S., 2003, Global, long-term sulphur dioxide measurements from TOVS data: A new tool for studying explosive volcanism and climate, in Robock, A. and Oppenheimer, C., eds., Volcanism and the Earth’s Atmosphere, AGU Geophysical Monograph 139, pp. 75-92. ISBN 0-87590-998-1

  64. Rakestraw, L., 1965, Historic mining on Isle Royale, reprinted in Borealis Isle Royale, Natural History Association, Houghton, MI.

  65. Rasmussen, T., Fraser, R., Lemberg, D.S., and Regis, R., 2002, Mapping stamp sand dynamics:  Gay, Michigan, J. Great Lakes Res. v. 28(2), pp. 276-284. [PDF]

  66. Ridge, J.C., Balco, G., Bayless, R.L., Beck, C.C., Carter, L.B., Dean, J.L., Voytek, E.B. and Wei, J.H., 2012, The new North American varve chronology: A precise record of southeastern Laurentide Ice Sheet deglaciation and climate, 18.2-12.5 kyr BP, and correlations with Greenland ice core records, Am J Sci, v. 312, pp. 685-722. doi:10.2475/07.2012.01

 
  1. Robertson, W.A. and Fahrig, W.F., 1971, The great Logan paleomagnetic loop-.the polar wandering path from the Canadian Shield rocks during the Neohelikian Era, Can. J. Earth Sci., v. 8, pp. 1355-1372.

  2. Robock, A., 2000, Volcanic Eruptions and Climate, Rev. Geophys., v. 38(2), pp. 191-2000.  [PDF]

  3. Rogers, S. and Nash, D., 2003, The Dune Book.  North Carolina Sea Grant, NC State Univ., Wilmington, NC, 32 pp.  [Pamphlet]

  4. Roinla, M., 2003, Finnish commercial fishermen on Lake Superior:  The rise and fall of an ethnic fishery, Middle State Geographer, v. 36, pp. 25-37.

  5. Ross P.S., Ukstins Peate, I., McClintock, M.K., Xu, Y.G., Skilling, I.P., White, J.D.L., and Houghton, B.F., 2005, Mafic volcaniclastic deposits in flood basalt provinces: a review, J. Volcanol. Geotherm. Res., v. 145, pp. 281–314. [PDF]

  6. Santin, S.F., 1969, Pegmatitoides in the horizontal basalts of the Lanzarote and Fuerteventura Islands, Series I, Bull. Volcanol., v. 33, pp. 989-1007.

  7. Schmidt, P.W. and Williams G.E., 2003, Reversal asymmetry in Mesoproterozoic overprinting of the 1.88-Ga Gunflint Formation, Ontario, Canada: non-dipole effects or apparent polar wander?, Tectonophysics, v. 377, pp. 7–32.

  8. Seaman, A.E. and Seaman, W.A., 1944, Geological column Lake Superior region in general, Michigan Geol. Surv. Div., Progress Report No. 10.

  9. Self, S., Keszthelyi, L., and Thordarson, T., 1998, The importance of pahoehoe, Annu. Rev. Earth Planet. Sci., v. 26, pp. 81–110.

  10. Semken, S. and Freeman, C.B., 2008, Sense of place in the practice and assessment of place-based science teaching, Science Education, v. 92(6), pp. 1042-1057.  doi 10.1002/sce.20279.

  11. Sexton, J.L. and Henson, H., Jr., 1994, Can J Earth Sci, v. 31(4), pp. 652-660,  doi:10.1139/e94-058.

  12. Shiklomanov, I.A., 1993, World fresh water resources, in Gleick, P.H., ed., Water in Crisis: A Guide to the World’s Fresh Water Resources, Oxford University Press, USA, NY, 504 pp, pp. 13-24.

  13. Shirey, S.B., Carnegie Institution, Department of Terrestrial Magnetism: Continental mafic volcanism and rifts.  Retrieved from: http://home.dtm.ciw.edu/users/shirey/Shirey_iWeb_Site/Research/Entries/2010/11/15_Continental_MAFIC_Volcanism_and_Rifts.html

  14. Smith, D.C. and Borns, H.W., Jr., 2000, Louis Agassiz, the Great Deluge and Early Maine Geology, Northeastern Naturalist, v. 7(2), pp. 157-177.  [Article]

  15. Spence, C., Blanken, P.D., Hedstrom, N., Fortin, V., and Wilson, H., 2011, Evaporation from Lake Superior: 2. Spatial distribution and variability, J Great Lakes Res, v. 37(4), pp. 717-724. doi:10.1016/j.jglr.2011.08.013.

  16. Stein, C.A., Stein, S., Merino, M., Keller, G.R., Flesch, L.M., and Jurdy, D.M., 2014, Was the Midcontinent Rift part of a successful seafloor-spreading episode?, Geophys. Res. Lett., v. 41, doi:10.1002/2013GL059176.

  17. Stein, S., van der Lee, S., Jurdy, D., Stein, C., Wiens, D., Wysession, M., . . . and Tekverk, K., 2011, Learning from failure: The SPREE Mid-Continent Rift experiment, GSA Today, v. 21, pp. 5-7.  doi: 10.1130/G120A.1.

  18. Strahler, A. H., 2010, Introducing Physical Geography, 5th Edition, John Wiley & Sons, Inc., NJ, 656 pp.

  19. Stoiber, R.E. and Davidson, E.S., 1959, Amygdule mineral zoning in the Portage Lake Lava Series, Michigan copper district, Economic Geology, v. 54, pp. 1250–1277, 1444–1460. doi:10.2113/gsecongeo.54.7.1250/

  20. Sunagawa, I., 1999, Growth and morphology of crystals, Forma, v. 14, pp. 147-166.  [PDF]

  21. Suszek, Thomas, 1997. Petrography and sedimentation of the Middle Proterozoic (Keweenawan) Nonesuch Formation, western Lake Superior region, Midcontinent Rift System, in Ojakangas, R.W., Dickas, A.B., and Green, J.C., eds., Middle Proterozoic to Cambrian rifting, Central North America. Geological Society of America, Special Paper 312. [PDF]

  22. Swanson, D.A., Wright, T.L., and Helz, R.T., 1975, Linear vent systems and estimated rates of magma production and eruption for the Yakima basalt on the Columbia plateau, Am. J. Sci., v. 275, pp. 877-905.

  23. Swanson-Hysell, N.L., Maloof, A.C., Weiss, B.P., and Evans, D.A.D., 2009, No asymmetry in geomagnetic reversals recorded by 1.1-billion-year-old Keweenawan basalts, Nat Geosci, v. 2, pp. 713- 717.  Supplementary Information pp. 1-24.  doi:10.1038/NGEO622.

  24. Swanson-Hysell, N.L., Burgess, S.D., Maloof, A.C., and Bowring, S.A., 2014, Magmatic activity and plate motion during the latent stage of Midcontinent Rift development, Geology, v. 42, pp. 475-478. doi: 10.1130/G35271.1

  25. Taylor, I.E. and Middleton, G.V., 1990, Aeolian sandstone in the Copper Harbor Formation, Late Proterozoic, Lake Superior basin, Can. J. Earth Sci., v. 27, pp. 1339-1347. [PDF]

  26. Theilig, E. and Greeley, R., 1986, Lava Flows on Mars: Analysis of small surface features and comparisons with terrestrial analogs, J Geophys. Res., v. 92, pp. E193-E206. doi: 10.1029/JB091iB13p0E193

  27. Thordarson, T. and Self, S., 1998, The Roza Member, Columbia River Basalt Group: A gigantic pahoehoe lava flow field formed by endogenous processes?,  J. Geophys. Res., v. 103(B11), pp. 27411–27445.  doi:10.1029/98JB01355.

  28. Topinka, L., 2002, Columbia River flood basalts.  Map modified from Univ. of North Dakota, “Volcano World.”  USGS: Cascades Volcano Observatory, Vancouver, WA.

  29. Turner, P., 1980, Continental Red Beds, Elsevier, Amsterdam, The Netherlands, 562 pp.  ISBN: 0444412387, 9780444412386.

  30. Van Hise, C.R. and Leith, C.K., 1911, The geology of the Lake Superior region, Mon. U.S. Geol. Survey, No. 52, 641 pp.

  31. Vanlier, K. E., 1963, Water Investigation 1: Reconnaissance of the Ground-Water Resources of Alger County, Michigan. [PDF]. Michigan Department of Environmental Quality. 11 pp.

  32. Van Luven, D.M., Huntoon, J.E., and Maclean, A.L., 1999, Determination of the influence of wind on the Keweenaw Current in the Lake Superior basin as identified by Advanced Very High Resolution Radiometer (AVHRR) imagery, J. Great Lakes Res, v. 25(4), pp. 625-641. [PDF]

  33. von Hake, C.A., 1973, Earthquake History of Michigan, Earthquake Information Bulletin, Nov.-Dec. 1973, v.5(6), U.S. Department of the Interior., US Geological Survey.

  34. Walker, G.P.L., 1987, Pipe vesicles in Hawaiian basaltic lavas: their origin and potential paleoslope indicators, Geology, v. 15, pp. 84-87.

  35. Wallin, H., 1966, 1970, 1977, 2004, Douglass Houghton Michigan’s first state geologist, 1837-1845.  Pamphlet 1.  Department of Environmental Quality, Geological and Land Management Division, Lansing, MI,  20 pp.  [Pamphlet]

  36. Wang, W., Liang, M., and Huang, S., 2009, Formation and development of stream potholes in a gorge in Guangdong. Journal of Geographical Sciences, v. 19(1), pp. 118-128.

  37. Warren, E.J., (1981), The bedrock topography of the Keweenaw Peninsula, Michigan, Michigan Technological University, Department of Geology and Geological Engineering, Ph.D. Dissertation, 169 pp. 2 maps.

  38. Wasson, R.J. and Hyde, R.  (1983).  Factors determining desert dune type.  Nature, 304, 337-339.  doi:10.1038/304337a0

  39. White, J.D.L., Bryan, S.E., Ross, P-S., Self, S. and Thordarson, T.  (2009).  Physical volcanology of continental large igneous provinces: update and review.  In Thordarson, T., Self, S., Larsen, G., Rowland, S.K. & Hoskuldsson, A. (Eds.) Studies in Volcanology: The Legacy of George Walker.  Special Publications of IAVCEI, 2, 291–321.  Geological Society, London. [PDF]

  40. White, W.S., 1952, Imbrication and initial dip in a Keweenawan conglomerate bed, J. Sediment. Petrol., v. 22, pp. 189-199.

  41. White, W.S., 1956, Geologic map of the Chassell quadrangle, Michigan, USGS Mineral Investigations Field Studies Map MF43, scale 1:24,000.

  42. White, W.S., 1957, Regional structural setting of the Michigan native copper district, in Snelgrove, A.K., ed., Geological Exploration, Institute on Lake Superior Geology, The Michigan College of Mining and Technology Press, Houghton, MI, pp. 3-16.  [PDF]

  43. White, W. S., 1971, Geologic setting of the Michigan Copper District, in Guidebook for Field Conference, Michigan Copper District, Sept. 30 - Oct. 2, 1971, Michigan Tech. Univ. Press, Houghton, MI, p. 3-17.

  44. White, W.S., 1971, ed., Guidebook for field conference: Michigan copper district, Sept. 30-Oct. 2, 1971, sponsored by Michigan Technological University, Houghton, MI, Michigan Technological University Press, 82 pp.

  45. White, W.S. and Wright, J.C., 1956, Geologic map of the South Range quadrangle, Michigan, USGS Mineral Investigations Field Studies Map MF-48, scale 1:24,000.

  46. White, W.S., Cornwall, H.R. and Swanson, R.W., 1953, Bedrock geology of the Ahmeek quadrangle, Michigan: USGS Geologic Quadrangle Map GQ-27, scale 1:24,000.

  47. Whittlesey, C., 1863, Ancient Mining on the shores of Lake Superior, Smithsonian Contributions to Knowledge, no. 155, The Smithsonian Institution, Washington, D.C., 29 pp.  [Article]

  48. Williams, H. and McBirney, A.R., 1979, Volcanology, Freeman Cooper, San Francisco, 397 pp.

  49. Willis, B., 1931, Biographical memoir of Raphael Pumpelly 1837-1923, in National Academy of Science USA, Biographical Memoirs, Volume XVI – Second Memoir, pp. 21-62.  [PDF]

  50. Wilson, S.E., 2001, Michigan’s Sand Dunes. Michigan Department of Environmental Quality, Geological Survey Division, Lansing, MI, Pamphlet 7, 12 pp.   [Pamphlet]

  51. Witthuhn-Rolf, K.M., 1997, A structural analysis of the Midcontinent Rift in Michigan and Minnesota, Geol. Soc. Am. Special Paper, v. 312, pp. 97-114,  doi: 10.1130/0-8137-2312-4.97

  52. Wolff, R.G. and Huber, N.K., 1973, The Copper Harbor Conglomerate (middle Keweenawan) on Isle Royale, Michigan, and its regional implications, USGS Prof Pap., No. 754-B, 15 pp.  [online book]

  53. Zen, E. and Prestegaard, K.L., 1994, Possible hydraulic significance of two kinds of potholes: Examples from the paleo-Potomac River, Geology, v. 22, pp. 47-50. doi:10.1130/0091-7613(1994)022<0047:PHSOTK>2.3.CO;2

  54. Zolitschka, B., 2007, Varved Lake Sediments, in Elias, S.A., ed., Encyclopedia of Quaternary Science, Elsevier, Amsterdam, pp. 3105-3114.  [PDF]

Liverworts at Bare Bluff

GeoElements of Michigan’s Keweenaw:

Lavas    Sandstone    Fault    Glaciers    Lake

GeoElements of Michigan’s Keweenaw:
Lavas    Sandstone    Fault    Glaciers    Lakehttp://www.geo.mtu.edu/KeweenawGeoheritage/KeweenawGeoheritage/GeoElements.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/BlackLavas/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/Sandstone/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/The_Fault/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/Glaciers/Welcome.htmlhttp://www.geo.mtu.edu/KeweenawGeoheritage/Lake/Welcome.htmlshapeimage_9_link_0shapeimage_9_link_1shapeimage_9_link_2shapeimage_9_link_3shapeimage_9_link_4shapeimage_9_link_5