Category:Precambrian geology of North America

Subcategories

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

Media in category "Precambrian geology of North America"

The following 23 files are in this category, out of 23 total.

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  Analytical Abstracts of Current Literature Summary of Current Pre-Cambrian North American Literature.pdf 975 × 1,404, 11 pages; 1.1 MB
  
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  Animikie Group, Marquette Range and Huronian supergroups2.PNG 692 × 776; 183 KB
  
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  Arroyo Penasco Group.jpg 4,000 × 3,000; 2.84 MB
  
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  Black nephrite jade (Precambrian; central Wyoming, USA) (24664298766).jpg 3,212 × 1,808; 2.67 MB
  
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  Bulletin of the United States Geological Survey-Pre-Cambrian Geology of North America (1908) (14771682515).jpg 1,648 × 2,700; 431 KB
  
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  Chevron folds in gneiss (Precambrian; Medicine Bow Mountains, Wyoming, USA) 3 (49156327697).jpg 3,008 × 1,816; 4.43 MB
  
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  Ephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 5 (24664738236).jpg 2,660 × 2,692; 4.54 MB
  
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  Gold-quartz hydrothermal vein (Precambrian; Camflo Gold Mine, Malartic, Quebec, Canada) (17017391900).jpg 3,878 × 2,350; 3.9 MB
  
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  Green nephrite jade (Precambrian; Granite Mountains, Wyoming, USA) 1 (24356359100).jpg 2,370 × 1,787; 3.52 MB
  
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  Green nephrite jade (Precambrian; Granite Mountains, Wyoming, USA) 2 (24323267329).jpg 2,292 × 1,680; 3.07 MB
  
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  Native copper from intraclast conglomerate matrix (Mesoproterozoic, 1.05-1.06 Ga; Conglomerate Lode, Centennial Mine, Houghton County, Michigan, USA) 1 (17116629157).jpg 2,590 × 2,934; 3.62 MB
  
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  Nephrite jade (Precambrian; Rawlins area, Wyoming, USA) (24670081006).jpg 2,429 × 1,956; 2.9 MB
  
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  Nephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 1 (24062779354).jpg 2,041 × 1,555; 2.17 MB
  
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  Nephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 2 (24597432921).jpg 1,266 × 1,472; 1.92 MB
  
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  Nephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 3 (24690945305).jpg 2,912 × 1,556; 2.66 MB
  
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  North america basement rocks.png 484 × 429; 31 KB
  
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  Precambrian-Pennsylvanian nonconformity (Red Rocks Amphitheater, west of Denver, Colorado, USA).jpg 3,008 × 2,000; 2.71 MB
  
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  Review of Summaries of Pre-Cambrian Literature for 1902-1903. I (Continued).pdf 975 × 1,404, 11 pages; 1.02 MB
  
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  Sudbury Breccia intruding Cartier Granite (Precambrian; Crab Lake South roadcut, south-southeast of Cartier, Ontario, Canada) 4 (33857824948).jpg 4,000 × 3,000; 9.17 MB
  
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  Summaries of Current North American Pre-Cambrian Literature July August 1901.pdf 975 × 1,441, 18 pages; 1.47 MB
  
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  Summaries of Current North American Precambrian Literature September October 1900.pdf 975 × 1,404, 14 pages; 1.16 MB
  
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  Summaries of Pre-Cambrian Literature of North America.pdf 975 × 1,404, 11 pages; 842 KB
  
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  Wyoming, Mojave, Yavapai, Mazatzal, Trans-Hudson.gif 705 × 1,000; 95 KB