Wikimedi'Òc

Waterfall at 'The Gut', Apsley, Ontario, Canada.JPG - Anne Delong

Precambrian basalt lava ridge at 'The Gut', Apsley, Ontario, Canada.JPG - Anne Delong

Blocks of Whirlpool Sandstone and Queenston Shale - panoramio.jpg - Panoramio upload bot

Gunflint Chert (Paleoproterozoic, ~1.878 Ga; near Port Arthur, Ontario, Canada) 2 (45445592754).jpg - Rudolphous

Radioactive quartz-pebble conglomerate (Matinenda Formation, Paleoproterozoic, ~2.3-2.48 Ga; Spine Road outcrop, Elliot Lake, Ontario, Canada) 1 (46802712705).jpg - Rudolphous

Radioactive quartz-pebble conglomerate (Matinenda Formation, Paleoproterozoic, ~2.3-2.48 Ga; Spine Road outcrop, Elliot Lake, Ontario, Canada) 18 (46802919835).jpg - Rudolphous

Radioactive quartz-pebble conglomerate (Matinenda Formation, Paleoproterozoic, ~2.3-2.48 Ga; Spine Road outcrop, Elliot Lake, Ontario, Canada) 42 (40753052213).jpg - Rudolphous

Background radiation reading (Spine Road outcrop, Elliot Lake, Ontario, Canada) (47669737432).jpg - Rudolphous

Radioactive rock overhang enriched with secondary uranium minerals (Spine Road outcrop, Elliot Lake, Ontario, Canada) 2 (47669742502).jpg - Rudolphous

Glacially-smoothed & striated tillite outcrop (Coleman Member, Gowganda Formation, Paleoproterozoic, ~2.3 Ga; Straight Lake West roadcut, north of Temagami, Ontario, Canada) 1 (46908949145).jpg - Rudolphous

Glacially-smoothed & striated tillite outcrop (Coleman Member, Gowganda Formation, Paleoproterozoic, ~2.3 Ga; Straight Lake West roadcut, north of Temagami, Ontario, Canada) 10 (47825209011).jpg - Rudolphous

Glacial striations (Straight Lake West roadcut, north of Temagami, Ontario, Canada) (40859886953).jpg - Rudolphous

Glacially-smoothed tillite outcrop (Coleman Member, Gowganda Formation, Paleoproterozoic, ~2.3 Ga; Straight Lake West roadcut, north of Temagami, Ontario, Canada) (40859882583).jpg - Rudolphous

Clast-rich mixtite (Coleman Member, Gowganda Formation, Paleoproterozoic, ~2.3 Ga; Percival Lake roadcut, Ontario, Canada) 9 (47727074561).jpg - Rudolphous

Dike intruding tillite (Nipissing Diabase & Gowganda Formation, Paleoproterozoic; Percival Lake roadcut, Ontario, Canada) 19 (33851035358).jpg - Rudolphous

Impact breccia (Sandcherry Member, Onaping Formation, Paleoproterozoic, 1.85 Ga; High Falls roadcut, Sudbury Impact Structure, Ontario, Canada) 11 (47706679082).jpg - Rudolphous

Impact breccia (Sandcherry Member, Onaping Formation, Paleoproterozoic, 1.85 Ga; High Falls roadcut, Sudbury Impact Structure, Ontario, Canada) 14 (46842788215).jpg - Rudolphous

Metagraywackes (Chelmsford Formation, Paleoproterozoic, 1.74 Ga; Larchwood North outcrop, Sudbury Impact Structure, Ontario, Canada) 16 (47708637742).jpg - Rudolphous

Metagraywackes (Chelmsford Formation, Paleoproterozoic, 1.74 Ga; Larchwood North outcrop, Sudbury Impact Structure, Ontario, Canada) 37 (47711165902).jpg - Rudolphous

Glacial striations on sandstone (Mississagi Formation, Paleoproterozoic, ~2.3-2.4 Ga; Ramsey Lake Road outcrop, Sudbury, Ontario, Canada) 9 (46974666734).jpg - Rudolphous

Sandstone (Mississagi Formation, Paleoproterozoic, ~2.3-2.4 Ga; Ramsey Lake Road outcrop, Sudbury, Ontario, Canada) 1 (47713265032).jpg - Rudolphous

Banded iron-formation over basement rocks (Archean; Route 17 roadcut east of Bridget Lake, south of Wawa, Ontario, Canada) 7 (48263201202).jpg - Ser Amantio di Nicolao