John A. Luczaj
University of Wisconsin–Green Bay
Publications 16
#2John A. LuczajH-Index: 6
The honorary Chernobyl Liquidator Medal depicts pathways of alpha, gamma, and beta rays over a drop of blood, signifying the human health impacts of the Chernobyl accident. A relativistic analysis of the trajectories depicted on the Chernobyl Liquidator Medal is conducted assuming static uniform magnetic and electric fields. The parametric trajectories are determined using the energies of alpha (α) and beta (β) particles relevant to the Chernobyl nuclear power plant accident and compared with th...
#1John A. Luczaj (UWGB: University of Wisconsin–Green Bay)H-Index: 6
#2Hui Huang (IU: Indiana University Bloomington)H-Index: 1
Abstract We provide the first Cu-isotope data for chalcopyrite in Paleozoic carbonate-hosted Mississippi Valley-type (MVT) mineralization, along with corresponding sulfur isotopes, for eastern Wisconsin, USA. Chalcopyrite in this region occurs mainly as disseminated crystals and is associated with regionally extensive dolomite-hosted subeconomic MVT mineralization on the western edge of the ancestral Michigan Basin. A narrow range in δ 65 Cu values (0 ± 0.5‰) for chalcopyrite is observed along a...
1 CitationsSource
#1John P. Craddock (Macalester College)H-Index: 17
#2David H. Malone (ISU: Illinois State University)H-Index: 9
Last.Stephen T. Johnston (U of A: University of Alberta)H-Index: 26
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Abstract The Proterozoic Grenville orogeny (~ 1300–980 Ma) reactivated the Archean-hosted Kapuskasing suture in Laurentia which then propagated west and south initiating the Keweenaw rift (1141–1085 Ma) which closed by thrust shortening at 1060 Ma. Late Proterozoic-Paleozoic sediments were then deformed in association with the amalgamation of Pangea in the late Paleozoic causing ~ 30 km of thrust shortening along this 4000 km paired (inverted) fault system, preserved by numerous 2nd and 3rd orde...
9 CitationsSource
#1John A. LuczajH-Index: 6
#2Julie MaasH-Index: 1
Last.Jonathan OdekirkH-Index: 1
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The Northeast Groundwater Management Area of Wisconsin, USA contains two major cones of depression in a confined sandstone aquifer. Each cone is centered near cities that have used groundwater for over 100 years. Near one of these cities (Green Bay), episodic changes in the development of groundwater and surface water resources during this period have resulted in major changes to the potentiometric surface. On two occasions, roughly 50 years apart, reductions in groundwater withdrawals have resu...
3 CitationsSource
#1John A. LuczajH-Index: 6
Last.Megan J. Olson HuntH-Index: 5
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Disseminated Mississippi Valley-type (MVT) mineralization occurs throughout northeastern Wisconsin, USA, and is recognized as the source of regionally extensive natural groundwater contamination in the form of dissolved arsenic, nickel, and other related metals. Although considerable attention has been given to arsenic contamination of groundwater in the region, limited attention has been focused on characterizing the bedrock sources of these and other metals. A better understanding of the poten...
5 CitationsSource
#1John A. Luczaj (UWGB: University of Wisconsin–Green Bay)H-Index: 6
The world’s population is facing a water crisis, which is expected to worsen dramatically during the 21st century. Problems due to over exploitation of groundwater, as well as from natural and anthropogenic contamination are major challenges facing humanity. This Special Issue contributes a selection of topics on groundwater quantity and quality issues that face different parts of the world.
5 CitationsSource
#1Kevin ErbH-Index: 1
#2Eric RonkH-Index: 1
Last.John A. LuczajH-Index: 6
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In the Silurian Dolostone region of eastern Wisconsin, the combination of thin soils and waste application (animal manure, organic waste) has led to significant groundwater contamination, including Brown Water Incidents (BWIs—contamination resulting in a color or odor change in well water) and detections of pathogen indicator bacteria such as E. coli and others. In response, a Karst Task Force (KTF) was convened to identify risks and recommend solutions. This article looks at the impact eight ye...
4 CitationsSource
#1John A. Luczaj (UWSP: University of Wisconsin–Stevens Point)H-Index: 6
#2Kevin Masarik (UWGB: University of Wisconsin–Green Bay)H-Index: 1
The State of Wisconsin is located in an unusually water-rich portion of the world in the western part of the Great Lakes region of North America. This article presents an overview of the major groundwater quantity and quality concerns for this region in a geologic context. The water quantity concerns are most prominent in the central sand plain region and portions of a Paleozoic confined sandstone aquifer in eastern Wisconsin. Water quality concerns are more varied, with significant impacts from...
17 CitationsSource
#1John A. LuczajH-Index: 6
#2David J. HartH-Index: 10
#1John A. Luczaj (UWGB: University of Wisconsin–Green Bay)H-Index: 6
#2William B. Harrison (WMU: Western Michigan University)H-Index: 4
Last.Natalie Smith Williams (WMU: Western Michigan University)H-Index: 1
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The Middle Devonian Dundee Formation is the most prolific oil-producing unit in the Michigan Basin, with more than 375 million bbl of oil produced to date. Reservoir types in the Dundee Formation can be fracture controlled or facies controlled, and each type may have been diagenetically modified. Although fracture-controlled reservoirs produce more oil than facies-controlled reservoirs, little is known about the process by which they were formed and diagenetically modified. In parts of the Dunde...
32 CitationsSource