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Geology Of The Rainy Lake Area
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Book Synopsis Geology of National Parks by : Ann G. Harris
Download or read book Geology of National Parks written by Ann G. Harris and published by Kendall Hunt. This book was released on 2004 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: CD-ROM contains: Introductory text, maps, and geologically labeled photographs of all the parks.
Book Synopsis Geology of the Otukamamoan Lake Area, Districts of Rainy River and Kenora by : C. E. Blackburn
Download or read book Geology of the Otukamamoan Lake Area, Districts of Rainy River and Kenora written by C. E. Blackburn and published by . This book was released on 1973 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies in Mineralogy and Precambrian Geology by : Bruce R. Doe
Download or read book Studies in Mineralogy and Precambrian Geology written by Bruce R. Doe and published by Geological Society of America. This book was released on 1972 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Geological Survey Bulletin written by and published by . This book was released on 1973 with total page 1324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Geology and Magnetite Deposits of Northern St. Louis County, Minnesota by : Frank Fitch Grout
Download or read book The Geology and Magnetite Deposits of Northern St. Louis County, Minnesota written by Frank Fitch Grout and published by . This book was released on 1926 with total page 716 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Minnesota's Geology by : Richard W. Ojakangas
Download or read book Minnesota's Geology written by Richard W. Ojakangas and published by U of Minnesota Press. This book was released on 1982 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Have you ever wondered how the Mississippi River was formed? Or why shark teeth have been found in the Iron Range of the Upper Midwest? Towering mountain ranges, explosive volcanoes, expansive glaciers, and long-extinct forms of both land and sea life were an important part of Minnesota's ancient history. Today the evidence of this remarkable heritage is revealed in the state's rocky outcroppings, stony soils, and thousands of lakes.
Book Synopsis The Geology and Magnetite Deposits of Northern St. Louis County, Minnesota by : Clinton Raymond Stauffer
Download or read book The Geology and Magnetite Deposits of Northern St. Louis County, Minnesota written by Clinton Raymond Stauffer and published by . This book was released on 1926 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis U.S. Geological Survey Bulletin by :
Download or read book U.S. Geological Survey Bulletin written by and published by . This book was released on 1983 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalogue, United States Public Documents by :
Download or read book Monthly Catalogue, United States Public Documents written by and published by . This book was released on 1990-07 with total page 1288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on with total page 1320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Current Research Part A by : Geological Survey of Canada
Download or read book Current Research Part A written by Geological Survey of Canada and published by . This book was released on 1982 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Geological Survey Professional Paper by :
Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1984 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Publications of the Geological Survey by :
Download or read book Publications of the Geological Survey written by and published by . This book was released on 1971 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mineral Resource Assessment of the U.S. Portion of the International Falls 1° X 2° Quadrangle, Northern Minnesota by : T. L. Klein
Download or read book Mineral Resource Assessment of the U.S. Portion of the International Falls 1° X 2° Quadrangle, Northern Minnesota written by T. L. Klein and published by . This book was released on 1997 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Abstracts of North American Geology by : Geological Survey (U.S.)
Download or read book Abstracts of North American Geology written by Geological Survey (U.S.) and published by . This book was released on 1971-07 with total page 1178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Report on the Geology of the Rainy Lake Region by : Andrew Cowper Lawson
Download or read book Report on the Geology of the Rainy Lake Region written by Andrew Cowper Lawson and published by . This book was released on 1888 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Subjects : regional geology; economic geology; Archean; geological surveys; bedrock geology; lithology; metamorphic rocks; sedimentary rocks; igneous rocks; intrusive rocks; gabbros; surface waters; lakes; lake water depths; alluvial plains; Keewatin Series; Precambrian"--GEOSCAN site.
Book Synopsis Great Lakes Tectonic Zone--revisited by : Paul Kibler Sime
Download or read book Great Lakes Tectonic Zone--revisited written by Paul Kibler Sime and published by . This book was released on 1993 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Great Lakes tectonic zone (GLTZ) is a Late Archean crustal boundary (paleosuture) at least 1,200 kilometers long that juxtaposes a Late Archean greenstone-granite terrane (Wawa subprovince of Superior province) on the north and an Early to Late Archean gneiss terrane (Minnesota River Valley subprovince) on the south. Recent mapping of an exposed seg- ment in the Marquette, Michigan, area provides new data on the vergence of the structure. These data necessitate reexami- nation of the COCORP seismic-reflection profiling in central Minnesota, which has been the principal basis for past views on the vergence of the GLTZ. In the Marquette area, the GLTZ is a northwest-striking mylonite zone about 2.3 kilometers wide that is superposed on previously deformed rocks of both Archean terranes. Shear zone walls strike N. 55°-60° W., and foliation in mylonite within the GLTZ strikes (average) N. 70° W. and dips 75° SW. A stretching lineation plunges 42° in a S. 43° E. direction. Hinges of tight to open (sheath?) folds of both Z- and S-symmetries plunge parallel to the lineation. The attitude of the lineation (line of tectonic transport and X finite strain axis), together with asymmetric kinematic indicators, indicates that collision at this locality was oblique; the collision resulted in dextral- thrust shear along the boundary, northwestward vergence, and overriding of the greenstone-granite terrane by the gneiss terrane. In contrast, the seismic-reflection profiling in central Minnesota has been interpreted by several investigators to indicate that the GLTZ is a shallowly north dipping (=30°) structure, which implies southward vergence on a north-dipping subduction zone. We suggest, alternatively, that the shallow- dipping reflectors in the seismic profiles indicate lithologic contacts related to recumbent and gently inclined folds (D1), perhaps enhanced by ductile deformation zones, and that the Morris fault is indeed the GLTZ. The Morris fault strikes about N. 70° E., dips steeply southeastward, is transparent in seismic profiles, appears to be narrow, and coincides with the inferred position of the GLTZ as shown on earlier maps. The oblique collision along northwest-trending segments of the GLTZ would be expected to produce dextral transpression across a large region north of the GLTZ, and may have produced an early nappe-forming event (D1) as well as younger upright folds (D2), and as a later, more brittle event, the numerous dextral faults and conjugate sinistral faults that are widespread in the Wawa and adjacent subprovinces.
