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Major- and trace-element concentrations in soils from northern California: Results from the Geochemical Landscapes project pilot study
Regional-scale geochemical survey designed to serve as a baseline for further analyses, and to understand effects of historical mining in the area. |
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Weathering and transport of chromium and nickel from serpentinite in the Coast Range ophiolite to the Sacramento Valley, California, USA
Investigates Cr and Ni geochemistry providing insight into the mobility and bioaccessibility of these toxic trace elements throughout northern California and perhaps the origin of elevated dissolved Cr(VI) concentrations in the western Sacramento Valley |
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Grain size, mineralogic, and trace-element data from field samples near Hinkley, California
Grain size distribution, photographic, and associated chemical and mineral analysis data for 36 sediment core and alluvium samples as well as SEM analysis on select grains from magnetic and heavy mineral separates collected in this area. Data are provided in CSV and JPEG formats with microprobe analyses presented as PDF reports with TIFF images. |
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Geochemistry and Environmental Tracer Data for Groundwater, Stream Water, and Ferricrete Samples from Handcart Gulch, Colorado
Stream water, groundwater, and ferricrete samples were collected and analyzed to constrain the location of a possible concealed mineral occurrence. Data are provided in CSV and shapefile formats. |
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Geochemistry and Environmental Tracer Data for Groundwater, Stream Water, and Soil and Sediment from North Quartz Creek, Colorado
Chemical data from stream water, groundwater, and soil samples collected in 2019 and 2020 in this area. Data from a tracer study is included as tool for understanding sources and loading rates of metals affecting stream water quality in a watershed affected by legacy mining and natural sulfide-weathering. Data are provided in CSV format. |
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Laboratory data from testing parameters of EPA Method 3060A on Soils Contaminated with Chromium Ore Processing Residue 2013-2016
Data from a detailed analysis of a formal procedure that is used to extract Cr(VI) from solids containing chromium ore processing residue, Careful modification of the procedure was intended to improve its efficiency with which it extracts this chemical species from the materials under study. Data are provided in CSV format. |
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Major- and trace-element concentrations in soils from two continental-scale transects of the United States and Canada
Spreadsheets containing geochemical data for soils |
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