The purpose of this project is to determine the specific style of hydrothermal alteration that occurs within the volcanic strata at Lynne Zn-Cu-Pb deposit. The Lynne deposit is a volcanogenic massive sulfide deposit (VMS) ...

The emplacement of granitoid plutons in Archean granite-greenstone belt terranes can provide a more complete magmatic and deformational history than the volcanic and sedimentary rocks. Granitoid plutons in greenstone belts ...

Eau Claire County is located in west-central Wisconsin, directly north of the unglaciated Driftless Area. A GIS-based 1:250,000-scale surficial geology map of Eau Claire County has been produced as part of a WGNHS project ...

Phosphorus (P)-laden runoff has been associated with lake eutrophication throughout the upper Midwest United States. Although P has been considered immobile in groundwater systems, an ongoing investigation at UW-Eau Claire ...

This study seeks to measure baseflow conditions in West-Central Wisconsin to aid in determining the impacts of groundwater withdrawals on local streams. Streamflow is measured monthly at fourteen (14) sites across eleven ...

The Bushveld layered mafic intrusion is the world’s largest magmatic body and hosts much of the known platinum, chromium, titanium, and vanadium reserves. The origin and magmatic evolution of the intrusion is still the ...

The Great Permian Extinction occurred at the end of the Permian Period (~300-250 Ma), when 95% of marine and 70% of terrestrial life became extinct. The cause of this massive extinction event is still unknown, but it may ...

Groundwater is an important resource in west-central Wisconsin, and knowledge of the quantity of available groundwater is important for the environmental and economic well-being of the region. In recent years, greater ...

The primary objective of this research was to describe the petrographic and geochemical characteristics of least-altered felsic volcaniclastic and coherent volcanic rocks that host Zn-Pb-Cu massive sulfides in the Lynne ...