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Comparative Ecology of Benthic Communities in Natural and Regulated Areas of the Flathead and Kootenai Rivers, Montana

Description: A comparative study was made of environmental variables and the density, biomass, diversity, and species composition of macroinvertebrates in areas downstream from a dam with a hypolimnetic release (Hungry Horse Dam on the Flathead River) and a dam with a selective withdrawal system (Libby Dam on the Kootenai River). A major objective of this study was to examine the response of macroinvertebrate communities to defined environmental gradients in temperature, flow, substrate, and food-related va… more
Date: May 1984
Creator: Perry, Sue A.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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Appendix B-3. Statistical Summary of Hydrochemical Data from Ground and Surface Water Samples, Ekalaka, Montana/North Dakota/South Dakota Quadrangle

Description: Appendix containing a statistical summary of hyrogeochemical data from ground and surface water samples to accompany a report on U.S. uranium resources in the Ekalaka Quadrangle in Montana, North Dakota, and South Dakota.
Date: February 22, 1980
Creator: Robinson, Keith & Adkisson, Cheryl W.
Item Type: Refine your search to only Report
Location: None
Partner: UNT Libraries Government Documents Department
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National Uranium Resource Evaluation: Hamilton Quadrangle, Idaho and Montana

Description: Results of reconnaissance surveys of the Hamilton quadrangle to determine the likelihood of uranium deposits of the area, and additional information about the location and classification of any deposits.
Date: July 1982
Creator: McKee, C. J.; Gilmore, Ernest H. & Salisbury, William C.
Item Type: Refine your search to only Report
Location: None
Partner: UNT Libraries Government Documents Department
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance Data Release for the Lewistown NTMS Quadrangle, Montana, Including Concentrations of Forty-Two Additional Elements

Description: "This report contains data collected during a geochemical survey for uranium in the Lewistown National Topographic Map Series (NTMS) quadrangle of Montana (Fig. 1) by the Los Alamos Scientific Laboratory (LASL) as part of the nationwide Hydrogeochemical and Stream Sediment Reconnaissance (HSSR). [...] The HSSR program is part of the United States Department of Energy's (DOE) National Uranium Resource Evaluation (NURE), which is designed to provide an improved estimate of the availability and ec… more
Date: August 1980
Creator: Shannon, Spencer S., Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance Data Release for the Hamilton NTMS Quadrangle, Montana/Idaho, Including Concentrations of Forty-Five Additional Elements

Description: Report of elemental date from a Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Hamilton National Topographic Map Series (NTMS) quadrangle in Montana/Idaho: "The HSSR is part of the United States Department of Energy's National Uranium Resource Evaluation (NURE), which is designed to provide improved estimates of the availability and economics of nuclear fuel resources and make available to industry information for use in the development and production of uranium resources" (p… more
Date: August 1980
Creator: Goff, Sue
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Uranium Hydrogeochemical and Stream Sediment Reconnaissance of the Dubois NTMS quadrangle, Idaho/Montana, Including Concentrations of Forty-Five Additional Elements

Description: This report presents uranium and other elemental data resulting from the Hydrogeochemical and Stream Sediment Reconnaissance (HSSR) of the Dubois NTMS quadrangle in Idaho and Montana. Totals of 1024 water samples and 1600 sediment samples were collected from 1669 locations in the Dubois quadrangle. Water samples were taken at streams, springs, and wells; sediment samples were collected from streams and springs.
Date: August 1980
Creator: LaDelfe, Carol M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Size Fractionation of Metabolically Active Phytoplankton and Bacteria in Two Diverse Lentic Systems

Description: Simultaneous size fractionation of plankton populations associated with NaH^14CO_3 and ^3H-glucose uptake was employed in eutrophic Lake Texoma (Texas and Oklahoma) and oligotrophic Flathead Lake (Montana). Autoradiography was utilized to determine the role of specific microorganisms in community metabolism. Ultraplankton (0.45-10 μm) dominated plankton numbers and metabolic activity in both aquatic systems. Many of the most abundant species were not the most productive, in terms of inorganic C… more
Date: August 1980
Creator: Ellis, Bonnie K.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Mineral Resources of the Ruby Mountains Wilderness Study Area, Madison County, Montana

Description: From abstract: A mineral resource survey of the Ruby Mountains Wilderness Study Area (MT-076-001) was made in 1984- 85. Thirty-two million tons of subeconomic mineral resources that average 21 percent iron occur in the Kelly iron deposit and constitute an identified resource adjacent to the southeasternmost edge of the study area. Moderate and high mineral resource potential for talc deposits occur within a large body of Archean (see geologic time chart in appendix) marble in the central part o… more
Date: 1987
Creator: Tysdal, Russell G.; Lee, G. K.; Hassemer, Jerry H.; Hanna, W. F.; Schmauch, S. W. & Berg, Richard B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Mineral Resources of the Blacktail Mountains Wilderness Study Area, Beaverhead County, Montana

Description: From summary:A mineral resource survey of a 10,610-acre part of the Blacktail Mountains Wilderness Study Area (MT-076- 002) was conducted in 1984-85. Identified subeconomic resources of barite exist in the area at the northernmost boundary, and a zone partly within the area along the northeastern boundary has a moderate mineral resource potential for silver and barite, and associated gold, copper, lead, and zinc. No producing mines occur in or adjacent to the area. The area lies within a region… more
Date: 1987
Creator: Tysdal, Russell G.; Lee, Gregory K.; Hassemer, Jerry H.; Hanna, W. F. & Benham, J. R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Mineral Resources of the Farlin Creek Wilderness Study Area, Beaverhead County, Montana

Description: Abstract: The Farlin Creek Wilderness Study Area (MT-076-034) is in the south-central Pioneer Mountains about 24 miles west-northwest of Dillon, Beaverhead County, southwestern Montana. At the request of the U.S. Bureau of Land Management, an area of 610 acres (less than 1 square mile) was investigated by the U.S. Geological Survey and the U.S. Bureau of Mines in 1984. The area contains no mines or prospects, no visible evidence of mineralization, and no identified mineral resources. Geophysica… more
Date: 1987
Creator: Pearson, Robert Carl; Hassemer, Jerry H.; Hanna, William F.; Hoover, Donald B.; Pierce, Herbert A. & Schmauch, Steven W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Montana: basic data for thermal springs and wells as recorded in GEOTHERM

Description: GEOTHERM sample file contains 225 records for Montana. Three computer-generated indexes are found in appendices A, B, and C of this report. The indexes give one line summaries of each GEOTHERM record describing the chemistry of geothermal springs and wells in the sample file for Montana. Each index is sorted by different variables to assist the user in locating geothermal records describing specific sites. Appendix A is sorted by the county name and the name of the source. Also given are latitu… more
Date: July 1, 1983
Creator: Bliss, J. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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