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Assessment of the Source and Mobility of Phosphorus in the Hydrologic System in Western Wisconsin
(2021-04)
Lake eutrophication due to nutrient loading from phosphorus (P) is a growing problem across the Midwest, causing a loss of aquatic biodiversity, damage to fisheries, and adverse impacts on human health. Although eutrophication ...
Surface and Groundwater Chemistry of Western WI : Establishing an Environmental Baseline
(2021-04)
The expansion of silica sand mining and concentrated animal feeding operations in western WI over the past decade has generated concerns about potential contamination of surface water and groundwater systems. However, the ...
A Case Study at Mud Lake : The Influence of Phosphorus Loading Through Lacustrine Groundwater Discharge on Eutrophication Events in a Stratified Flow-Through Lake in Western Wisconsin
(2021-04)
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 ...
The Potential Role of the Choiyoi Eruptive Activity in the Great Permian Extinction
(2021-04)
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 ...
Source Identification of Phosphorus Contamination Pathways in Surface Water and Groundwater of Western Wisconsin; Recognizing a Phosphorus Problem
(2018-04)
This investigation involves a comprehensive source to sink assessment of phosphorus (P) transport pathways in the hydrologic
system of western Wisconsin. Excess P loading in surface water causes eutrophication events that ...
New Zircon U-Pb Ages for the Choiyoi Silicic Large Igneous Province of Argentina that Define a Strong Episodic History of Magmatism and Mass Extinction in the Permo-Triassic Time
(2017-02-20)
The Choiyoi magmatic silicic large igneous province (SLIP) of central and southern Argentina and Chile (23°S-
42°S) was emplaced along the eastern edge of Gondwana in Permo-Triassic time. This magmatic province
qualifies ...
Wisconsin's Water : Establishing an Environmental Trace Metal Baseline for Responsible and Reasonable Regulation
(2018-02-22)
The primary objective of this investigation is to conduct a comprehensive analysis of surface water and groundwater
chemistry throughout western Wisconsin. This analysis will establish an environmental baseline that will ...
Tracking Basin Inversion in the RetroArc Foreland Basin: Integrated Provenance Studies in the Cachueta Basin, South-Central Andes
(2016-10-17)
The Cachueta basin, east of Mendoza, Argentina, records a detailed history of rapid exhumation of the Andean orogenic system at 33°S. The integration of sedimentologic, stratigraphic, geochronologic, and thermochronologic ...
Provenance of the Paleocene-Eocene Oyster Bay Formation, British Columbia
(2018-02-23)
The Oyster Bay Formation is a recessive, thin-bedded, fine-grained succession that disconformably overlies the Upper Cretaceous Nanaimo Group in isolated exposures along the eastern coast of Vancouver Island, British ...
Evolution of the Manantiales Basin : Miocene Orogenic Patterns in the South-Central Andes
(2018-02-22)
This study of the Manantiales Basin is in conjunction with a larger study of multiple basins in the south-central Andes. The basin has been interpreted as a Miocene foreland basin devoloped in response to Miocene deformation ...