Wikimedi'Òc

North america basement rocks.png - Ciaurlec

Wyoming, Mojave, Yavapai, Mazatzal, Trans-Hudson.gif - Valich

Animikie Group, Marquette Range and Huronian supergroups2.PNG - Bettymnz4

Review of Summaries of Pre-Cambrian Literature for 1902-1903. I (Continued).pdf - Abyssal

Summaries of Pre-Cambrian Literature of North America.pdf - Abyssal

Analytical Abstracts of Current Literature Summary of Current Pre-Cambrian North American Literature.pdf - Abyssal

Summaries of Current North American Pre-Cambrian Literature July August 1901.pdf - Abyssal

Summaries of Current North American Precambrian Literature September October 1900.pdf - Abyssal

Native copper from intraclast conglomerate matrix (Mesoproterozoic, 1.05-1.06 Ga; Conglomerate Lode, Centennial Mine, Houghton County, Michigan, USA) 1 (17116629157).jpg - Natuur12

Gold-quartz hydrothermal vein (Precambrian; Camflo Gold Mine, Malartic, Quebec, Canada) (17017391900).jpg - Natuur12

Bulletin of the United States Geological Survey-Pre-Cambrian Geology of North America (1908) (14771682515).jpg - SteinsplitterBot

Sudbury Breccia intruding Cartier Granite (Precambrian; Crab Lake South roadcut, south-southeast of Cartier, Ontario, Canada) 4 (33857824948).jpg - Ser Amantio di Nicolao

Green nephrite jade (Precambrian; Granite Mountains, Wyoming, USA) 1 (24356359100).jpg - Ser Amantio di Nicolao

Black nephrite jade (Precambrian; central Wyoming, USA) (24664298766).jpg - Ser Amantio di Nicolao

Nephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 1 (24062779354).jpg - Ser Amantio di Nicolao

Nephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 2 (24597432921).jpg - Ser Amantio di Nicolao

Green nephrite jade (Precambrian; Granite Mountains, Wyoming, USA) 2 (24323267329).jpg - Ser Amantio di Nicolao

Nephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 3 (24690945305).jpg - Ser Amantio di Nicolao

Ephrite jade ventifact (Precambrian; Granite Mountains, Wyoming, USA) 5 (24664738236).jpg - Ser Amantio di Nicolao

Nephrite jade (Precambrian; Rawlins area, Wyoming, USA) (24670081006).jpg - Ser Amantio di Nicolao

Chevron folds in gneiss (Precambrian; Medicine Bow Mountains, Wyoming, USA) 3 (49156327697).jpg - Ser Amantio di Nicolao

Precambrian-Pennsylvanian nonconformity (Red Rocks Amphitheater, west of Denver, Colorado, USA).jpg - Ser Amantio di Nicolao

Arroyo Penasco Group.jpg - Kent G. Budge