Category:Metavolcanic rocks in the United States

Subcategories

This category has the following 20 subcategories, out of 20 total.

Media in category "Metavolcanic rocks in the United States"

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

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  Black porphyritic metarhyolite (Utley Rhyolite, Paleoproterozoic, 1765 Ma; Utley Rhyolite Quarry, near Green Lake, Wisconsin, USA) 4.jpg 3,523 × 1,886; 4.27 MB
  
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  Greenstone (metagabbro) (metamorphism at ~2.7 Ga, Neoarchean; Rt. 169 roadcut south of Peyla, Minnesota, USA) 1 (23068991659).jpg 2,398 × 3,441; 3.32 MB
  
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  Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 31.jpg 4,000 × 3,000; 4.71 MB
  
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  Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just west of Ely, Minnesota, USA) 1 (21340651099).jpg 3,990 × 2,958; 4.64 MB
  
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  Native copper in phyllite (late Precambrian; Blue Ridge Summit, Adams County, Pennsylvania, USA) 4.jpg 3,997 × 1,888; 6.02 MB