Global Change Master Directory gsfc-gcmduso@mail.nasa.gov 50 2013-05-24T04:39:19Z GCMD Search: [Parent_DIF='NURE'] http://mddemo.gsfc.nasa.gov/KeywordSearch/OpenSearch.do 1 0 http://gcmd.gsfc.nasa.gov/getdif.htm?[GCMD]NURE_SEDIMENT_CHEM National Uranium Resource Evaluation Program: Sediment Chemistry of the Conterminous United States -179.0,19.0,-68.0,70.0 1964-01-01T00:00:00Z 1996-01-01T00:00:00Z 2006-10-26T04:00:00Z From NURE Sediment Chemistry FAQ: These maps are derived from a subset of the National Uranium Resource Evaluation (NURE) Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) data. Approximately ...