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This tabular data set represents select geochemical characteristics based on Olson geology types in surface or near surface geology (Olson, 2014) compiled for two spatial components of the NHDPlus version 2 data suite (NHDPlusv2) for the conterminous United States; 1) individual reach catchments and 2) reach catchments accumulated upstream through the river network. The select geochemical characteristics in surface or near surface geology are: 1) mean percentage of lithological calcium oxide (CaO), 2) mean lithological compressive strength, measured as uniaxial compressive strength (in megaPascals, MPa), 3) mean percentage of lithological phosphorus pentoxide (P2O5), 4) mean percentage of lithological potassium...


    map background search result map search result map Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Select Geochemical Characteristics Based on Olson Geology Types Attributes for NHDPlus Version 2.1 Catchments and Modified Routing of Upstream Watersheds for the Conterminous United States: Select Geochemical Characteristics Based on Olson Geology Types