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Michigan

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USA / Michigan

Ge­ol­o­gy

Die untere Halbinsel schließt das Michigan-Basin ein, ein Gebiet sedimentärer Gesteine, welches von eiszeitlichem Geschiebe überlagert ist. Sie ist mineralogisch sehr verschieden mit großen Lagern von ged. Kupfer (die Keweenaw-Halbinsel) in Keweenaw, Houghton und Ontonagon Counties. Präkambrische Eisen-Formationen wurden abgebaut in den Gogebic-, Marquette- und Menominee-Eisenlagern in den Gogebic, Iron, Dickinson und Marquette Counties. Es gibt in diesen Teilen des Staats auch Kimberlite und Goldlager.

Mineralienatlas short URL

https://www.mineralatlas.eu/?l=1387
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Shortened path specification

Michigan, US
Useful for image descriptions and collection inscriptions

Important: Before entering this or any other place of discovery you should have a permission of the operator and/or owner. Likewise it is to be respected that necessary safety precautions are kept during the visit.

Additional Functions

Minerals (Count: 278)

Mineral images (5 Images total)

Kupfer
Views (Image: 1285886034): 872
Kupfer

Größe: 3,5 x 3,4 cm; Fundort: Michigan, USA

Collection: Hg
Copyright: Hg
Contribution: Hg 2010-10-01
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Kupfer, Silber
Views (Image: 1259504485): 1251
Kupfer, Silber (SNr: 01.101)

kompaktes 'half-breed'-Nugget aus Michigan, USA. Größe: 5,5 x 4,5 x 2 cm.

Collection: thdun5
Copyright: thdun5
Contribution: thdun5 2009-11-29
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Kupfer
Views (Image: 1264603919): 1118
Kupfer

Größe: 10,82 mm; Fundort: Michigan, USA

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2010-01-27
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Rocks (Count: 28)

Fossils (Count: 15)

Reference- and Source indication, Literature

Literatur:

  • Hinsdale, E.B. (1891). Native Copper of Michigan. J. Am. Geogr. Soc. New York 23, 324-38.
  • Dorr, J.A., Eschman, D.F. (1970). Geology of Michigan. Univ. Michigan Press, Ann Arbor, 476 S.
  • Butler, B.S. and W.S. Burbank (1929). The Copper deposits of Michigan. U.S. Geol. Survey Prof. Paper 144. - The classic description of the geology of the copper mines - long out of print, see link for selected excerpts.
  • Huber, N.K. (1975). The geologic story of Isle Royale National Park U.S. Geol. Survey Bull. 1309 - A good introductory level booklet on the geology and landforms in the park - see link for selected excerpts.
  • Heinrich, E.W. (1976). The mineralogy of Michigan (Bulletin - Geol. Survey Div.; 6. Michigan Dep. Natural Resources, Geol. Survey Div., 225 S.
  • Dyl, S.J., Wilson, M.L. (1992). Michigan Copper Country: Min. Rec., 23:2, 1-76.
  • Carlson, S.M., Floodstrand, W. (1994). Michigan Kimberlites and Diamond Exploration Techniques (abstr.). In: Inst. Lake Superior Geol. Proc., 40th Ann. Meet., Houghton, Michigan, v.40, part 4.
  • LaBerge, G.L. (1994). Geology of the Lake Superior Region. Geoscience Press, Arizona, 313 S.
  • Bornhorst, T.J. and W.I. Rose (1994). Self-guided geological field trip to the Keweenaw Peninsula, Michigan. Institute on Lake Superior Geol. Proc., 40th an. meeting, Houghton, MI v 40, part 2, 185 S. - The basis for this virtual trip.
  • Copper Country Rock & Mineral Club (1998). Red Gold & Tarnished Silver - Mines and minerals of the UP.
  • Vogtmann, W. (1998). The Rockhound's Michigan. Midwest Mineralogical and Lapidary Society of Dearborn - compilation of articles on collecting trips from the club bulletin (also contains other areas of Michigan).
  • Molloy, L. (2001). Copper Country Road Trips. Great Lake GeoScience, Hubbell, Mich. 97 S. - Guidebook of the historic mines and mining towns of the UP.
  • E.W. Heinrich and G.W. Robinson (2004): Mineralogy of Michigan. Seaman Museum 252 S. Michigan Techn. Univ., Houghton, Michigan, 252 S.

Weblinks:

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