The geologic map of the Stitzer and western part of the Montfort quadrangles includes 1:24,000-scale mapping of both surficial and bedrock geology. This area occurs at the northern margin of the historic Upper Mississippi Valley …
bedrock
Assessing private well contamination in Grant, Iowa, and Lafayette counties: The southwest Wisconsin groundwater and geology study
The southwest Wisconsin groundwater and geology study (SWIGG) was a cooperative effort between Grant, Iowa, and Lafayette county governments, with scientists from the U.S. Geological Survey, U.S. Department of Agriculture, Marshfield Clinic Research Institute, and …
Southwest Wisconsin groundwater and geology study (SWIGG)
Southwest Wisconsin has fractured bedrock beneath generally thin soils, putting groundwater at risk for contamination. The purpose of this study was to improve our understanding of groundwater quality in southwest Wisconsin and to better understand how local hydrogeology …
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 …
Elevation contours of the Precambrian surface of south-central Wisconsin
Elevation contour data and an accompanying report provide an updated interpretation of the elevation of the top of Precambrian bedrock in south-central Wisconsin. The elevation surface was developed from geologic and geophysical data, and provides …
Geologic map of the Bloomington and Brodtville 7.5-minute quadrangles, Grant County, Wisconsin
The geologic map of the Bloomington and Brodtville quadrangles includes 1:24,000 scale mapping of both surficial and bedrock geology. There is little structural folding or faulting in this portion of the Driftless Area. Thus, it …
Aerial survey in northeast Wisconsin
In January 2021, northeastern Wisconsinites may notice a low-flying helicopter towing a large, hoop-shaped sensor. The helicopter’s sensor uses airborne electromagnetic (AEM) technology to gather data that will help scientists update depth to bedrock maps. …
The Precambrian Geology of the Baraboo Hills
In this March 2019 talk for Wednesday Nite @ The Lab (WN@TL), WGNHS geologist Esther Stewart shares her insights into some of Wisconsin’s oldest rocks. It’s a story of reading the deep-time sedimentary record and …