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Evaluating pXRF instrument performance using reference materials
The portable X-Ray Fluorescence (pXRF) instrument provides fast, real-time, non-destructive, multi-element geochemical data (i.e. elemental concentrations) on rocks and minerals at a relatively low cost and with minimal sample preparation. This study quantifies the precision and accuracy of measurements collected by the WGNHS pXRF on reference materials...-
Evaluating pXRF instrument performance using reference materials
2023
Report: 50 p. (report) + 31 p. (appendices)
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Mineral Assessments for Conservation Easements in Wisconsin
If you’re thinking about donating land as a conservation easement but don’t own the subsurface (known as “severed mineral rights”), then you’ll need an assessment of the land’s mineral potential to determine whether the easement will qualify as a charitable tax deduction. Geologists at the Wisconsin Geological and Natural History Survey perform this... -
Depth-to-Bedrock Mapping in Wisconsin
Depth-to-bedrock maps show the thickness of unconsolidated materials overlying bedrock. These maps provide a key link between the underlying geology, groundwater flow, and land use and are important in guiding activities such as permitting, bridge construction, and the land application of waste products in sensitive areas. Given their role in guiding... -
Depth-to-Bedrock Map of Dodge County, Wisconsin
This map shows thicknesses of deposits of unconsolidated materials above the bedrock. Across the county, depth to bedrock ranges from 0 feet, where bedrock is exposed, to over 250 feet within bedrock valleys. Areas with bedrock depths shallower than 20 feet are of particular importance for land-use planning and to the construction stone industry. Such... -
Sampling Methodologies and Data Analysis Techniques for Geologic Materials Using Portable X-Ray Fluorescence (pXRF) Elemental Analysis
Details the current WGNHS approach to pXRF analysis, including usage guidelines, sample preparation, calibration, and plotting techniques.-
Sampling Methodologies and Data Analysis Techniques for Geologic Materials Using Portable X-Ray Fluorescence (pXRF) Elemental Analysis [appendices]
2016
Data: PDF files + Excel spreadsheet
Publications Catalog
Wisconsin Geological and Natural History Survey
