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Federal
Effects of metals from historical mining on crayfish in Madison County Missouri USA, 2015
Department of the Interior —
Deposits of lead (Pb) and other metals in southeastern Missouri, USA have been exploited since the 1700s. Metal contamination of fish and other aquatic biota,... -
Federal
In situ U-Pb dating of apatite and rutile from St. Francois Mountains IOA and IOCG deposits, southeast Missouri
Department of the Interior —
Apatite (Ca5(PO4)3(Cl/F/OH)) and rutile (TiO2) samples were collected by the U.S. Geological Survey (USGS) from the iron oxide-apatite-rare earth element (IOA-REE)... -
Federal
Little Saint Francis River chat pile orthoimagery and elevation products, Missouri, July 2019.xml
Department of the Interior —
The products presented here document conditions at the Little Saint Francis River chat pile restoration site near Fredericktown, Missouri in July 2019. Imagery was...