Wikimedi'Òc

Minnesota's Distribution of Exposed Crystalline Rocks.PNG - Bettymnz4

Faulted metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just east of Ely, Minnesota, USA) 2 (20905900193).jpg - Ser Amantio di Nicolao

Pyritic dacitic lapilli metatuff (pyritic dacitic meta-lapillistone) (Neoarchean, ~2.7-2.72 Ga; vicinity of Soudan Mine, Soudan, Minnesota, USA) (22479921471).jpg - Ser Amantio di Nicolao

Dacitic lapilli metatuff (dacitic meta-lapillistone) (Neoarchean, ~2.7-2.72 Ga; vicinity of Soudan Mine, Soudan, Minnesota, USA) 4 (22468933725).jpg - Ser Amantio di Nicolao

Greenstone (metagabbro) (metamorphism at ~2.7 Ga, Neoarchean; Rt. 169 roadcut south of Peyla, Minnesota, USA) 5 (23436916665).jpg - Ser Amantio di Nicolao

Slate (Knife Lake Formation, metamorphism at 2.7 Ga, Neoarchean; Rt. 135 roadcut, Gilbert, Minnesota, USA) 12 (23507922685).jpg - Ser Amantio di Nicolao

Amphibolite inclusions in Giants Range Batholith (Neoarchean, 2.674-2.682 Ga; Confusion Hill roadcut, just north of Virginia, Minnesota, USA) 1 (23640848356).jpg - Ser Amantio di Nicolao

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 2.jpg - Ser Amantio di Nicolao

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 3.jpg - Ser Amantio di Nicolao

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; large glacial erratic along Main Street, Ely, Minnesota, USA) 31.jpg - Ser Amantio di Nicolao

Metamorphosed pillow basalt (Ely Greenstone, Neoarchean, ~2.722 Ga; Rt. 169 roadcut just east of Ely, Minnesota, USA) 5.jpg - Ser Amantio di Nicolao