Category:Archean geology of Minnesota

Subcategories

This category has the following 6 subcategories, out of 6 total.

Media in category "Archean geology of Minnesota"

The following 8 files are in this category, out of 8 total.

• 
  Jaspilite (Soudan Iron-Formation, Neoarchean, ~2.69 Ga; ceiling between No. 8 elevator shaft & stope, 27th level of the Soudan Mine, Soudan, Minnesota, USA) 2 (19032277481).jpg 3,545 × 2,388; 3.12 MB
  
• 
  Migmatite (Archean, ~ 3.524 Ga; Minnesota, USA) 1 (49156025601).jpg 3,008 × 2,000; 4.86 MB
  
• 
  Migmatite (Archean, ~3.4 to 3.5 Ga; Minnesota, USA) 1 (22915182614).jpg 3,589 × 2,981; 4.61 MB
  
• 
  Migmatite (Archean, ~3.4 to 3.5 Ga; Minnesota, USA) 2 (23434889782).jpg 3,000 × 4,000; 4.41 MB
  
• 
  Migmatite (Archean, ~3.4 to 3.5 Ga; Minnesota, USA) 3 (23517332506).jpg 2,834 × 3,950; 3.48 MB
  
• 
  Migmatite (Morton Gneiss Complex, Archean, ~3.524 Ga; Cold Spring Granite Company quarry, Morton, Minnesota, USA) 2 (40134740810).jpg 3,968 × 2,098; 5.24 MB
  
• 
  Migmatite (Morton Gneiss Complex, Archean, ~3.524 Ga; Cold Spring Granite Company quarry, Morton, Minnesota, USA) 3 (41897958622).jpg 3,526 × 2,744; 5.46 MB
  
• 
  Polymict conglomerate (Ogishkemuncie Conglomerate, Neoarchean; Ogishkemuncie Lake, Boundary Waters, Minnesota, USA) 3 (22134788499).jpg 4,000 × 2,577; 4.03 MB