Browsing by Author "Maly, Craig C"
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Item Erie Pier Dredge Material Beneficial Use Study Final Report February 25, 2013(University of Minnesota Duluth, 2013-02-25) Patelke, Marsha Meinders; Levar, Thomas E; Zanko, Lawrence M; Oreskovich, Julie A; Maly, Craig CA two-year (2011-2012) study was undertaken by the University of Minnesota Duluth Natural Resources Research Institute (NRRI) to conduct lab and field demonstrations – as well as concurrent testing and monitoring – related to the beneficial use of federal navigation channel dredge material removed from the Duluth-Superior Harbor and stored at the Erie Pier facility in Duluth, MN. Much of the groundwork for the 2011-2012 study was done in prior years, but especially in 2009 and 2010, through ongoing collaborative efforts of the U.S. Army Corps of Engineers’ (USACE) Detroit District, its Engineering Research and Development Center (ERDC) in Vicksburg, MS, its Duluth Area Office, and public and private entities in Minnesota and Wisconsin. Examples of the latter include: the Duluth Seaway Port Authority; the Duluth-Superior Metropolitan Interstate Council (DSMIC); the Harbor Technical Advisory Committee (HTAC) and its members; city, county and state officials and agency personnel; engineering firms and contractors; and Minnesota taconite mining operations.Item Mineland Reclamation using Office Waste Paper De-Inking Residue(University of Minnesota Duluth, 1994-03) McCarthy, Barbara J; Monson Geerts, Stephen D; Johnson, Kurt W; Malterer, Thomas J; Maly, Craig CPulp facilities which recycle office waste paper generate a large amount of waste by-products in the process of producing high-grade pulp. The paper-like residue, called de-inking residue, was evaluated for use in the restoration of vegetation on coarse taconite tailings in NE Minnesota. The mineland reclamation rules specify that a 90 percent vegetative cover shall be established on tailings after three growing seasons, however this level of cover on coarse tailings has not been consistently achieved in Minnesota using standard restoration practices. Research plots were established in 1992 at Eveleth Mines arranged in a randomized block design with three replications using five levels of de-inking residue, five levels of fertilization and two plant mixes. A total of twenty-five treatment combinations were assigned to 2.5m- by- 4.0m plots and lysimeters were installed to monitor changes in sub-surface water quality. Coarse tailings were evaluated to determine the effects of de-inking residue on their chemical properties. Vegetative cover was measured in July and September in 1992 and 1993 and nutrient levels were determined in plant samples. Fertilization and de-inking residue amendments had significant effects on the vegetative cover of both introduced and native plant species. De-inking residue had a minimal impact on the chemical properties of coarse tailings at rates up to 80 dry ton/acre and on sub-surface water quality at a depth of four feet. Vegetative cover for introduced species increased from no cover, to 49 percent the first growing season, to 90 percent at the end of the second growing season on tailings fertilized at the highest level and amended with residue at 10 ton/acre. At the same fertilizer and de-inking residue rate, vegetative cover for native plants increased from no cover to 7 percent the first growing season, to 69 percent at the end of the second growing season. Alfalfa had lower levels of boron, magnesium, and manganese on residue amended plots in 1992 and 1993. Bluestem had higher levels of calcium and zinc, but lower levels of magnesium and manganese on residue amended. plots. Cadmium, chromium, copper, nickel, lead, and zinc in alfalfa and bluestem did not accumulate to toxic levels. Deinking residue appears to have benefited vegetative growth after two growing seasons using deinking residue applied at 10 dry ton/acre with fertilizer applied at 160 lb/acre of nitrogen and 359 lb/acre of phosphorus.Item MnDOT Highway 169 2015 Drilling Project(University of Minnesota Duluth, 2017-06) Heine, John J; Patelke, Marsha Meinders; Buschette, Michael; Leu, Adam; Maly, Craig C; Gordee, Sarah M; Chlebecek, Sara; Lee, Aubrey; Post, Sara PThe Natural Resources Research Institute (NRRI) Economic Geology Group was contracted by the Minnesota Department of Transportation (MnDOT) [Project Number 0005269] to provide onsite drilling supervision, core logging and sampling, and geochemical studies related to proposed construction along Highway 169 east of Soudan, Minnesota. The goal of this project was to provide MnDOT the data required to produce a mitigation plan for the Highway 169 Eagles Nest project. MnDOT, working with the Minnesota Department of Natural Resources (DNR) and Golder Associates, was responsible for developing the guidelines for this work with the help of the Highway 169 Technical Working Group (Minnesota Pollution Control Agency, Minnesota Department of Health, US Corps of Engineers, Environmental Protection Agency, and NRRI). Golder Associates (Seattle, WA office) was responsible for developing the mitigation plan for bedrock roadcuts along the reroute. This work was a continuation of the studies by Severson and Heine (2010, 2012) and Heine (2015) which examined the bedrock outcrops along three proposed Highway 169 reroutes and alternatives. Severson and Heine (2012) concluded that drilling would be needed in the potential bedrock roadcuts along the reroute corridor to fully characterize the geology as required in the mitigation plan.Item Non-ferrous Geology along the Highway 53 Relocation near Virginia, MN(University of Minnesota Duluth, 2015) Heine, John J; Patelke, Marsha Meinders; Post, Sara P; Maly, Craig CThis report outlines the non-ferrous work done in the area of the Highway 53 relocation near Virginia, MN. At the request of the mineral lease holder (Vermilion Gold Inc.), an examination of the gold potential in the area of the new road was completed. Vermilion Gold Inc. located ten exploration diamond drill hole sites which they believed were necessary to characterize the area. Drilling occurred during fall 2013 and was conducted by Idea Drilling. The drilling and subsequent work by Natural Resource Research Institute, University of Minnesota Duluth (NRRI) was funded by the Minnesota Department of Transportation (Mn/DOT) as part of the relocation work for the highway. Logging and sample preparation were completed at the NRRI Coleraine Minerals Research Laboratory (CMRL) in Coleraine, MN.