Category:Precambrian rocks in Minnesota

Subcategories

This category has the following 7 subcategories, out of 7 total.

Media in category "Precambrian rocks in Minnesota"

The following 5 files are in this category, out of 5 total.

• 
  Basalt lava flows (North Shore Volcanic Group, Mesoproterozoic, ~1.1 Ga; Leif Ericson Park, Duluth, Minnesota, USA) 2 (22427571782).jpg 3,000 × 3,723; 3.73 MB
  
• 
  Dacitic lapilli metatuff (dacitic meta-lapillistone) (Neoarchean, ~2.7-2.72 Ga; vicinity of Soudan Mine, Soudan, Minnesota, USA) 3 (21846235664).jpg 3,801 × 2,063; 4.07 MB
  
• 
  Hematite-rich iron ore (Precambrian; Pioneer Mine, Ely, Minnesota, USA) 3.jpg 3,341 × 2,062; 5.14 MB
  
• 
  Olivine tholeiite basalt lava flow below Gooseberry Falls - Lower Falls (Gooseberry River Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Gooseberry Falls State Park, Minnesota, USA) (22322465068).jpg 4,000 × 2,358; 6.56 MB
  
• 
  Quartz tholeiite basalt lava flow (flow B, Two Harbors Basalts, North Shore Volcanic Series, Mesoproterozoic, 1097-1098 Ma; Burlington Bay, Two Harbors, Minnesota, USA) 13 (22476415815).jpg 3,000 × 3,909; 5.38 MB