2 edition of Hydrology and water quality of the copper-nickel study region, northeastern Minnesota found in the catalog.
Hydrology and water quality of the copper-nickel study region, northeastern Minnesota
Donald I. Siegel
|Statement||by Donald I. Siegel and Donald W. Ericson ; prepared in cooperation with Minnesota Environmental Quality Board, Copper-Nickel Study Staff.|
|Series||Water-resources investigations -- 80-739., Open-file report, Open-file report (Geological Survey (U.S.))|
|Contributions||Ericson, Donald W., 1927-, Geological Survey (U.S.), Minnesota Environmental Quality Board. Copper-Nickel Study Staff.|
|The Physical Object|
|Pagination||vi, 87 p. :|
|Number of Pages||87|
Our study investigated net ecosystem production (NEP) relying on high-frequency data of hydrology, hydrodynamics and water quality. The Kanawha River, West Virginia was investigated along km. Copper-nickel ores in northeastern Minnesota could establish a new industry in a region where underground mining has not been active. This study reviews geotechnical data relevant to the selection and design of underground mines in this region and by numerical structural analysis evaluates the importance of some geotechnical parameters to mine method selection.
ENVIRONMENTAL, ECONOMIC, AND SOCIAL IMPACTS OF MINING COPPER-NICKEL IN NORTHEASTERN MINNESOTA. The Duluth Gabbro Complex in northeastern Minnesota possibly contains a significant domestic copper resource and the Nation's largest nickel resource. Exploration has discovered large low-grade copper-nickel (Cu-Ni) deposits between Hoyt Lakes and the Author: R M Hays. The Duluth Complex in northeastern Minnesota hosts economically significant deposits of copper, nickel, and platinum group elements (PGEs). The primary sulfide mineralogy of these deposits.
Northern Minnesotans are split over jobs vs. protecting the Boundary Waters Canoe Area and Wilderness from Twin Metals Minnesota's proposed copper nickel mines. The Duluth Gabbro Complex in northeastern Minnesota possibly contains a significant domestic copper resource and the nation's largest nickel resource. Exploration has discovered large low-grade copper-nickel deposits between Hoyt Lakes and the boundary waters canoe area.
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HYDROLOGY AND WATER QUALITY OF THE COPPER-NICKEL STUDY REGION, NORTHEASTERN MINNESOTA By Donald I. Siegel and Donald W. Ericson ABSTRACT Data were collected on the hydrology of the Copper-Nickel study region, to identify the location and nature of ground-water resources, determine theCited by: 8.
Get this from a library. Hydrology and water quality of the copper-nickel study region, northeastern Minnesota. [Donald I Siegel; Donald W Ericson; Hydrology and water quality of the copper-nickel study region Survey (U.S.); Minnesota Environmental Quality Board.
Copper-Nickel Study Staff.]. Data were collected on the hydrology of the Copper-Nickel study region to identify the location and nature of groundwater resources, determine the flow characteristics and general quality of the major streams, and determine the potential effects of mining copper and nickel on the hydrologic stream.
Groundwater generally occurs in local flow systems within surficial deposits and in fractures in. The Minnesota Environmental Quality Board's Regional Copper-Nickel Study is a comprehensive technical examination of the environmental, social, and economic impacts associated with the potential development of copper-nickel sulfide mineral resources of the File Size: 8MB.
impacts of copper-nickel mineral development in northeastern Minnesota. This study is being conducted for the }linnesota Legislature and state Executive Branch agencies, under the direction of the Minnesota Environ mental Quality Board (MEQB) and with the funding, review, and concurrence of the Legislative Commission on }linnesota Resources.
The Copper-Nickel study region lies in the Superior Upland physiographic province and is located approximately 60 miles north of Duluth and miles southeast of International Falls, Minnesota. It straddles the Laurentian Divide, which separates Hudson Bay and Lake Superior drainage.
The topography exhibits a southwesterly trending lineation that parallels the strike of southeastward. This report describes the general climate of the "Copper-Nickel Study Region" of Minnesota as based on data gathered from stations in existence prior to the Copper-Nickel Study.
By definition, this Region (all figures and tables are contained in,the back of this report) has. mental Quality Board (}illQB) and with the funding, review, and concurrence of the Legislative Commission on Hinnesota Resourccs.
A region along the surface contact of the Duluth Complex in St. Louis and Lake counties in northeastern }1innesota contains a major domestic resource of copper-nickel sulfide mineralization. This region has heen.
Hydrology and Water Quality of the Copper-Nickel Study Region, Northeastern Minnesota, U.S. Geological Survey Water Resources InvestigationsDonald I. Siegel and Donald W. Erickson, September GEOLOGY OF THE REGIONAL COPPER-NICKEL STUDY AREA I. INTR('T'\P"TION A) General Statement This report is designed to summarize and synthesize material concerning the bedrock geology and sulfide mineralization of the Regional Copper-Nickel Study Area (Study Area); specifically, the MDNR Minesite Area compiled,by numerous people in recent years.
Copper~nickel mining and associated development in northeastern 1\1innesota could have a major impact on the region's aquatic ecosystems. As a result of this potential for environmental impact, a regional environmental impact study and monitoring system was instituted for the purpose of: 1) characterizing the environmental conditions in the.
Hainly, R.A., and Ritter, J.R.,Areal and temporal variability of selected water-quality characteristics in two hydrologic-benchmark basins in the northeastern United States: U.S.
Geological Survey Water-Resources Investigations Report22 p. the approximate size and quality of the copper-nickel deposits in the Ely-Hoyt Lakes area, to aid in planning and decision making.
This area contains the largest known quantities of potentially minable copper and nickel in the Duluth Complex, and probably will be the first area to be considered for Size: 1MB. copper, nickel, and platinum group elements (PGE) from the NorthMet Deposit in northeastern Minnesota.
The mine would be the first of its kind in the state. The proposed NorthMet mine project would be located in the St. Louis River watershed on the eastern edge of the Mesabi Iron Range, about 6 miles south of Babbitt and about 1 mileFile Size: 1MB. Hydrology and Water Quality of the Copper-Nickel Study Region, Northeastern Minnesota.
USGS Water-Resources InvestigationsOpen file Report, Prepared in Cooperation with Minnesota Environmental Quality Board, Copper-Nickel Study Staff, 87 p., 1 plate and 1 table.
The Ely-Hoyt Lakes region, in northeastern Minnesota, contains very large quantities of disseminated copper and nickel sulfides that are potentially minable.
The principal sulfides are pyrrhotite, chalcopyrite, cubanite, and pentlandite, and the average copper-nickel ratio in the sulfide concentrations is approximately Cited by: 1. Science Desk: How Sulfide-Ore Copper Mines Pollute It’s a good question, because in order to understand the environmental impacts to the Boundary Waters Canoe Area Wilderness and Voyageurs National Park, we must first understand all of the ways sulfide-ore copper mining can cause harm to the surrounding lakes, streams, wetlands and forests.
This regional study was commissioned in order to provide base line data for use in legislative decision making processes relating to the establishment of a state mineral policy which will govern the development of the copper-nickel mineral resources of northeastern by: 1.
In northern Minnesota, copper, nickel and other nonferrous metals are embedded in rock that also contains sulfide. (That's why this kind of mining is often called sulfide mining.) When you expose the rock to air and water, sulfuric acid is created.
Copper-sulfide mining in northeastern Minnesota is not worth the risk In considering whether copper-nickel mining should be approved in Minnesota, we should weigh all the positives and.
Best- and worse-case water quality estimates were made for emissions from test pits and ore stockpiles as part of a regional environmental study.
Estimates for the combined abundances of copper, nickel, cobalt, and zinc were between and 6, µg/l for Figure 2.If those projections are accurate, copper-nickel mining will be an undeniable boost for northern Minnesota, a nearly one-tenth increase in employment for one of the region’s biggest industries.HYDROLOGY AND WATER QUALITY ON STRIPMINED LANDS by A.
S. Rogowski and H. B. Pionke U.S. Department of Agriculture, ARS Northeast Watershed Research Center University Park, Pennsylvania EPA-IAG-D5-E Project Officer Clinton W. Hall Office of Energy, Minerals and Industry Washington, D.C.
Office of Research and Development U.S. Environmental Protection .