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3 edition of Lake Superior basin segment of the midcontinent rift system found in the catalog.

Lake Superior basin segment of the midcontinent rift system

Lake Superior basin segment of the midcontinent rift system

Lake Superior basin (Minnesota, Wisconsin, Michigan), July 20-25, 1989

  • 301 Want to read
  • 33 Currently reading

Published by American Geophysical Union in Washington, D.C .
Written in English

    Subjects:
  • Geology -- Superior, Lake, Region -- Guidebooks.

  • Edition Notes

    Statementleader, Albert B. Dickas, editor ; associate leaders, Theodore J. Bornhorst ... [et al.].
    GenreGuidebooks.
    SeriesField trip guidebook -- T344, Field trip guidebook (American Geophysical Union) -- T344.
    ContributionsDickas, Albert B., Bornhorst, Theodore J., American Geophysical Union., International Geological Congress (28th : 1989 : Washington, D.C.)
    The Physical Object
    Paginationvii, 62 p. :
    Number of Pages62
    ID Numbers
    Open LibraryOL22617215M
    ISBN 100875905579

      The Midcontinent Rift ran from at least Kansas, up into Lake Superior, and then down into Lower Michigan. Though rift related rocks are only exposed in the Lake Superior region, with drill cores and gravity analyses we are able to know the extent of this ancient event. A related arm of the rift, which extends from eastern Lake Superior southeastward to the southern boundary of Michigan, is evaluated in the Michigan Basin Province () as Play Besides the Superior Province, the MRS also occupies portions of the Iowa Shelf, Forest City Basin, Nemaha Uplift, Salina Basin, Sedgewick Basin, and.

    References Cited, Lake Superior Basin Segment of the Midcontinent Rift System, undefined, (), (). Wiley Online Library Albert B. Dickas, Theodore J. Bornhorst, Richard W. Ojakangas, John C. Green, Michael G. Mudrey, Joseph Kalliokoski, James B. Paces, Road Log: International Geological Congress Field Trip T, Lake Superior Basin. Albert B. Dickas's 17 research works with citations and 1, reads, including: The Ga Midcontinent Rift System, central North America: sedimentology of two deep boreholes, Lake Superior.

    Lake Superior is the largest of the Great Lakes of North America, the world's largest freshwater lake by surface area, and the third largest freshwater lake by is shared by the Canadian province of Ontario to the north, the U.S. state of Minnesota to the west, and Wisconsin and the Upper Peninsula of Michigan to the south. The farthest north and west of the Great Lakes chain. Journals & Books; Help Uncertainty exists in the configuration and extent of the Midcontinent Rift System (MRS) because of deficiencies in geophysical data and limited information from outcrops and basement drill holes. show that the Eastern Lake Superior rift segment of the MRS continues south from Lake Superior and connects to a much.


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Lake Superior basin segment of the midcontinent rift system Download PDF EPUB FB2

Fifty-six years ago (), the geology of the “Lake Superior Region”, constituting Excursion C-4, was presented as Guidebook 27 of the XVI International Geological Congress.

The field guide for this excursion was prepared by W.O. Hotchkiss of the Michigan College of Mining and Technology (now Michigan Technological University) and sold for 25 cents.

Lake Superior basin segment of the midcontinent rift system: Lake Superior basin (Minnesota, Wisconsin, Michigan), JulyAuthor: Albert Binkley Dickas ; Theodore J Bornhorst ; American Geophysical Union.

Increasing evidence has shown that the structural basin which contains Lake Superior is the only surface exposure of a major continental rift, the Midcontinent Rift System, which developed in Middle and Upper Proterozoic time over a vast area of central North America.

The Lake Superior basin occurs within the granite-greenstone terrane, just to the north of the boundary (Great Lakes Tectonic Zone; Sims et al ) between the terranes. The rift system broadens within the.

Lake Superior Basin Segment of the Midcontinent Rift System Book The Lakes Handbook, Volume 1: Limnology and Limnetic Ecology Book The Lakes Handbook, Volume 2: Lake Restoration and Rehabilitation Book.

title = {Mid-Continent rift: new frontier in an old area}, author = {Davidson, Jr, D M and Mudrey, Jr, M G}, abstractNote = {The Mid-Continent rift (MCR) is a km-long intracontinental feature of middle Proterozoic age ( Ga) that extends from Kansas northeastward through the Lake Superior basin and then southeastward through the lower peninsula of Michigan.

The data show that the Lake Superior structural basin generally is outlined by the shoreline of the lake. The limbs of the elongated basin are delineated by gravity and magnetic maxima that occur over outcropping and buried mafic volcanic rock. The basin anomalies at the southwestern and southeastern ends of the lake extend into the midcontinent and mid-Michigan geophysical anomalies.

Request PDF | On Jan 1,J.D. Miller and others published The Geology and Mineral Deposits of the Ga Midcontinent Rift in the Lake Superior Region - An Overview | Find, read and cite all.

As part of that program, we and others are learning on a lot more about the Lake Superior Area, and how it results from a huge geologic structure. CAROL STEIN: The mid-continent rift is an 1,mile-long scar, along which North America started to tear apart, but for some reason failed to form a.

Cliffs of billion-year-old volcanic rocks from the Midcontinent Rift in Tettegouche State Park, Minn., tower above the brilliant blue waters of Lake Superior. Credit: Seth Stein By Seth Stein.

Lake Superior is located above the Midcontinent Rift, so the rift provided the region’s first transportation system, which is still crucial today. European settlers and traders used the lake to import and export trade goods, lake fisheries were significant first commercially and now recreationally, and the lake remains an economic engine today.

Lake Superior occupies a basin created by the rift. Near that lake, rocks produced by the rift can be found on the surface of Isle Royale and the Keweenaw Peninsula of the Upper Peninsula of Michigan, northwest Wisconsin, and on the North Shore of Superior in Minnesota and Ontario.

The Midcontinent Rift System, which curves for more than km across the Upper Midwest, is one of the world’s great continental rifts. Rifting began about billion years ago, when the Earth’s crust began to split along the margin of the Superior craton.

Integrating the results of several recent investigations, a five-stage evolutionary scenario is proposed for the Midcontinent Rift System in eastern Lake Superior: (1) onset of extrusive volcanism, (2) platform subsidence, (3) local crustal sagging, (4) deposition of postrift sediments, and (5) tectonic inversion.

Generalized geologic map of the Upper Peninsula of Michigan and the Midcontinent Rift System of the Lake Superior region. Locations of concentrations of copper in copper-dominated occurrences and deposits are shown around Lake Superior. (A) Overview of the Midcontinent Rift. The Midcontinent Rift system and surrounding Precambrian rocks are known to host highly significant mineral resources.

Our project objectives are to increase understanding of this system through the integration of new and legacy geophysical data with geochemical and borehole data, map the lithology and structure of PreCambrian rocks, and develop an integrated 3D geologic model of the region.

Miller, J. () Middle Keweenawan intrusive igneous history, in Dickas, A. (editor), Lake Superior basin segment of the Midcontinent Rift System: Field Trip Guidebook T, 28th International Geological Congress, 13– Google Scholar.

The structure and geometry of the b.y.-old Midcontinent Rift system under Lake Superior is interpreted from 20 seismic reflection profiles recorded during the early and mids.

The seismic data reveal that rift basins under Lake Superior are variable in depth and are partially filled with Keweenawan age sediments to depths of 7 km or. The Midcontinent Rift System was active between – Ma, as indicated in the Lake Superior region by age determinations on intrusive igneous rocks.

We suggest that the period of formation of the Midcontinent Rift was also a time of extensive igneous activity in Texas and New Mexico. This tear or rift, known as the Midcontinent Rift System, extended for miles from what is now Lake Superior to Oklahoma, and was on its way to becoming a full-fledged ocean when the process halted.

Rocks deposited during the rift’s formation can be seen today surrounding Lake Superior, including basalts along Minnesota’s North Shore and. Lake Superior Geology. The magenta and green areas show where a plume of hot mantle rock rose and spread under the stiffer lithosphere (the crust and uppermost mantle), stretching the old rocks which started to pull apart along great fissures, tracing out a huge arc known as the Midcontinent Rift System.Lake Nipigon with it's towering mesas forms the third arm of the rift.

Deep Basin forms in a Rift Valley. Thunder Bay GeoTour - M.N.D.M. - Mid Continent Rift - Two arms. Lake Nipigon later formed a third arm of the rift system.

The modern day East African Rift shown in Figure 5 forms a similar geologic structure. It is split into three arms as.Books; Author services. information for authors Integrated geophysical analysis provides an alternate interpretation of the northern margin of the North American Midcontinent Rift System, central Lake Superior.

V. J. S A case study from the Upper Triassic Chang 6 oil group of the Yanchang Formation in the Huaqing area, Ordos Basin.