Category:Paleoproterozoic geology of the United States

Subcategories

This category has the following 16 subcategories, out of 16 total.

Media in category "Paleoproterozoic geology of the United States"

The following 6 files are in this category, out of 6 total.

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  Harney Peak Granite (late Paleoproterozoic, 1.695 to 1.715 Ga; Needles, Black Hills, South Dakota, USA) (38366807454).jpg 1,440 × 1,080; 263 KB
  
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  Harney Peak Granite (late Paleoproterozoic, 1.695 to 1.715 Ga; Thunderhead Mountain, Black Hills, South Dakota, USA) 2 (33667846223).jpg 2,750 × 2,121; 3.17 MB
  
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  Pegmatitic granite (White Cap Pegmatite, Paleoproterozoic, ~1.7 Ga; White Cap Mine, east of Keystone, Black Hills, South Dakota, USA) 8 (23245119364).jpg 4,000 × 3,000; 3.23 MB
  
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  Quartz-mineralized fault zone in slate (Biwabik Iron-Formation, Paleoproterozoic, ~1.878 Ga; Thunderbird Mine, Mesabi Iron Range, Minnesota, USA) 1 (30824329723).jpg 4,000 × 2,368; 4.96 MB
  
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  Sioux Quartzite (Paleoproterozoic, 1.65 to 1.70 Ga; Transcontinental Arch, USA) 1.jpg 2,995 × 1,697; 4.99 MB
  
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  Talus from bluff of Baraboo Quartzite (upper Paleoproterozoic, ~1.7 Ga; Tumbled Rocks Trail, Devil's Lake State Park, Wisconsin, USA) 2 (18629324149).jpg 4,000 × 3,000; 3.8 MB