Naturally elevated metal contents of soils in northeastern North Dakota USA with a focus on cadmium

摘要

PurposeAssociation of element concentrations for the escarpment soils of northeastern North Dakota formed from different geologic parent materials was determined based on geochemical data. These soils overlie the Cretaceous Pierre Formation, and parent materials consist of shale rich glacial till, residual shale, and colluvial materials.