Banded Iron Formation

A sedimentary rock consisting of layers of iron oxides, either magnetite or hematite, with alternating bands of shales and cherts. Banded iron beds are an important commercial source or iron ore, the primary ingredient in the production of steel. Large deposits are located in Minnesota and Western Australia.
Abstract/Description: A sedimentary rock consisting of layers of iron oxides, either magnetite or hematite, with alternating bands of shales and cherts. Banded iron beds are an important commercial source or iron ore, the primary ingredient in the production of steel. Large deposits are located in Minnesota and Western Australia.
Subject(s): KS - Mo - OK Tri-State District, United States
environmental sciences