Animikie Group: Paleoproterozoic sedimentary sequences around Lake Superior Animikie Group A geological overview of the Animikie Group — Paleoproterozoic sediments and iron formations in the Lake Superior region, their subdivisions, geology, fossils, and economic signifi…
Banded iron formation (BIF): composition, origin, and significance Banded iron formation Banded iron formations are layered sedimentary rocks of the Precambrian made of alternating iron-rich and silica- or shale-rich bands. They record early ocean chemistry and are maj…
Canadian Shield (Laurentian Plateau) Canadian Shield Vast Precambrian region of exposed igneous and metamorphic rock forming the ancient core of North America, surrounding Hudson Bay and supplying minerals, forests, lakes and hydroel…
