Category:Precambrian geology of Montana

Subcategories

This category has the following 8 subcategories, out of 8 total.

Media in category "Precambrian geology of Montana"

The following 14 files are in this category, out of 14 total.

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  Altyn and Appekunny Fm Slingshot Mtn.jpg 5,152 × 2,451; 7.45 MB
  
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  Appekunny Fm.jpg 5,152 × 3,864; 4.9 MB
  
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  Grinnell Fm.jpg 4,032 × 3,024; 6.22 MB
  
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  Grinnell mudcracks.jpg 5,152 × 3,864; 4.53 MB
  
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  Grouse Creek block location1.jpg 1,131 × 1,206; 565 KB
  
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  Helena Fm.jpg 11,812 × 3,562; 44.87 MB
  
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  M. Collen beside rock, July 1905. (15190853015).jpg 6,105 × 4,615; 2.2 MB
  
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  Magnetitic serpentinite (Red Lodge Chromite District, Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA) (30584941804).jpg 2,757 × 2,162; 4.62 MB
  
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  Quartzite (Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA) 3.jpg 3,139 × 2,315; 4.93 MB
  
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  Quartzite (Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA) 6.jpg 2,597 × 1,930; 3.57 MB
  
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  Quartzite (Precambrian; Rock Creek Canyon, Beartooth Mountains, Montana, USA) 9.jpg 2,007 × 1,369; 1.87 MB
  
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  Stromatolites in limestone (Helena Formation (a.k.a. Siyeh Formation), Belt Supergroup, Mesoproterozoic, about 1.45 Ga; Going-to-the-Sun Highway, Glacier National Park, Montana, USA) 7 (15177930826).jpg 3,008 × 2,000; 3.16 MB
  
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  Stromatolites.jpg 550 × 371; 103 KB
  
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  The oldest known bacteria designated as Microccus Wellcome M0008855.jpg 1,910 × 1,839; 1.74 MB