Geochemical and mineralogical maps for soils of the conterminous United States

Geochemical and mineralogical data for soils of the conterminous United States

Pilot studies for the North American Soil Geochemical Landscapes Project – Site selection, sampling protocols, analytical methods, and quality control protocols

Geochemical and mineralogical maps, with interpretation, for soils of the conterminous United States

Major- and trace-element concentrations in soils from two continental-scale transects of the United States and Canada

Mineralogy of soils from two continental-scale transects across the United States and Canada and its relation to soil geochemistry and climate