Technical Report Archive & Image Library (TRAIL) - 169 Matching Results
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- Modifications to Filling and Emptying System of Lock No. 1, Mississippi River, Minneapolis, Minnesota =: Hydraulic Model Investigation
- From abstract: The existing locks at Locks and Dam No. 1 were constructed between 1929 and 1932. Problems have been experienced with accumulation of ice and debris at the intakes, air entrapment in the culverts of the filling and emptying system, excessive turbulence in the lock chamber during filling, and hazardous conditions downstream from the locks during emptying operations.
- Availability and Chemical Quality of Water From Surficial Aquifers in Southwest Minnesota
- From introduction: The objectives of the study were to (1) determine the areal extent, thickness, and water-yielding capability of aquifers in the surficial deposits, (2) estimate the amount of water in storage in the aquifers, (3) determine the chemical quality of water in the aquifers and, (4) establish observation wells to monitor the effects of ground-water development on water levels and storage in the aquifers.
- Designation of Principal Water-Supply Aquifers in Minnesota
- From introduction: The purpose of this report is to describe the general quality and quantity of water in the principal water-supply aquifers in Minnesota.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Bemidji Quadrangle, Minnesota: Final Report, Volume 1
- A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Bemidji Quadrangle, Minnesota
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Bemidji Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Bemidji quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Brainerd Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Brainerd quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Duluth Quadrangle, Minnesota: Final Report, Volume 1
- A report regarding an airborne gamma-ray spectrometer and magnetometer survey for the Duluth Quadrangle, Minnesota.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Duluth Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Duluth quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Hibbing Quadrangle, Minnesota: Final Report, Volume 1
- The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Hibbing quadrangle, Minnesota.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Hibbing Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Hibbing quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, International Falls Quadrangle, Minnesota: Final Report, Volume 1
- The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the International Falls quadrangle, Minnesota.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, International Falls Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the International Falls quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Kenora Quadrangle, Minnesota: Final Report, Volume 1
- A report regarding airborne gamma-ray spectrometer and magnetometer survey of the Kenora Quadrangle, Minnesota.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Kenora Quadrangle, Minnesota: Final Report, Volume 2
- This is the second volume and final report on the airborne high sensitivity gamma-ray spectrometer and magnetometer survey for the Kenora quadrangle, Minnesota. This volume provides data maps and sample charts of the results taken in the survey.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Quetico Quadrangle, Minnesota: Final Report, Volume 1
- The following report presents results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Quetico quadrangle, Minnesota.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Quetico Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Quetico quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Roseau Quadrangle, Minnesota: Final Report, Volume 1
- A report regarding an airborne gamma-ray spectrometer and magnetometer survey of the Roseau Quadrangle, Minnesota
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Roseau Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Roseau quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Saint Paul Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Saint Paul quadrangle, Minnesota. This volume contains data maps of the results.
- Airborne Gamma-Ray Spectrometer and Magnetometer Survey, Two Harbors Quadrangle, Minnesota: Final Report, Volume 2
- The following report is the second volume in a series of data presenting results of an airborne high sensitivity gamma-ray spectrometer and magnetometer survey over the Two Harbors quadrangle, Minnesota. This volume contains data maps of the results.
- [Bemidji Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the Bemidji quadrangle in Minnesota.
- [Bemidji Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the Bemidji quadrangle in Minnesota.
- [Duluth Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the Duluth quadrangle in Minnesota.
- [Duluth Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the Duluth quadrangle in Minnesota.
- [Hibbing Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the Hibbing quadrangle in Minnesota.
- [Hibbing Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the Hibbing quadrangle in Minnesota.
- [International Falls Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the International Falls quadrangle in Minnesota.
- [International Falls Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the International Falls quadrangle in Minnesota.
- [Kenora Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the Kenora quadrangle in Minnesota.
- [Kenora Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the Kenora quadrangle in Minnesota.
- [Quetico Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the Quetico quadrangle in Minnesota.
- [Quetico Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the Quetico quadrangle in Minnesota.
- [Roseau Quadrangle: Average Record Data Listings]
- Average record data listings taken during aerial gamma-ray and magnetic surveys of the Roseau quadrangle in Minnesota.
- [Roseau Quadrangle: Single Record Data Listings]
- Single record data listings taken during aerial gamma-ray and magnetic surveys of the Roseau quadrangle in Minnesota.
- Manganese Investigations - Metallurgical Division: 14. Hydrometallurgical Studies of Manganses Ores
- Report issued by the U.S. Bureau of Mines regarding laboratory tests conducted on acid leaching of manganese ore. Descriptions of the methods used in testing and results are presented. This report contains tables, and graphs.
- Effects of Urbanization on the Water Quality of Lakes in Eagan, Minnesota
- This report uses data collected from seventeen lakes and ponds in Eagan, Minnesota from 1972 through 1978 to determine the effects of urbanization on water quality. It contains a map, graphs, and tables.
- Magnetic Base Stations in Lake Superior Iron Districts
- Report issued by the U.S. Bureau of Mines on the magnetic base stations located in Minnesota, Michigan, and Wisconsin. The report evaluates the usefulness of the stations for calibration of certain instruments. This report contains tables, graphs, maps, and illustrations.
- The Eruptive and Sedimentary Rocks on Pigeon Point, Minnesota, and Their Contact Phenomena
- From preface: The preparation of this paper is due to the fact that the eruptive rocks occurring on Pigeon point, Minnesota, may be taken as types of similar eruptives found so widely spread over the Huronian and Keweenawan areas surrounding Lake Superior, and to the peculiar nature of the alteration these have superinduced in the fragmental rocks through which they have broken.
- Accident Experience: Iron-Ore Mines, Lake Superior District, 1940-43
- Report issued by the U.S. Bureau of Mines discussing the iron-ore mining accident experience in the Lake Superior District. Frequency and severity rates of accidents between 1940 and 1943 are presented. This report includes tables.
- Microscopic Structure and Concentratability of the Important Iron Ores of the United States
- Outline of Problem: "This paper covers a survey of 19 ores collected from seven of the more important iron-ore districts of the United States and is a contribution by the ore-dressing section of the United States Bureau of Mines to general research program on iron and steel being conducted by the Bureau."
- Fortran Computer Programs to Plot and Process Aquifer Pressure and Temperature Data
- From introduction: In this report, two programs have been developed for use in managing data derived from an aquifer thermal-energy storage (ATES) project being done by the University of Minnesota. Data are generated from temperature and pressure measuring devices that are read automatically by a datalogger. Up to 100 channels can be scanned every 10 seconds and recorded on magnetic tape or printed as paper output. Time period of up to several years of data may be represented on a single tape.
- National Uranium Resource Evaluation: Eau Claire Quadrangle, Wisconsin and Minnesota
- Purpose and scope: The Eau Claire Quadrangle, Wisconsin and Minnesota, was evaluated to identify geologic units and delineate areas that exhibit characteristics favorable for the occurrence of uranium deposits. All geologic environments to a depth of 1500 m (5,000 ft) were evaluated by means of surface investigations and available subsurface data. Each environment was categorized as favorable, unfavorable, or unevaluated for uranium deposits based on recognition criteria contained in the study of significant uranium districts worldwide (Mickle and Mathews, eds., 1978). Evaluation of the Eau Claire Quadrangle was conducted by Golder Associates, Inc., under subcontract to Bendix Field Engineering Corporation (BFEC), for the National Uranium Resource Evaluation (NURE) program, managed by the Grand Junction Office of the U.S. Department of Energy (DOE). The evaluation program began February 1, 1978, and ended February 1, 1980. Time spent by Golder personnel on literature search, field work, evaluation of data, and preparation of the final report totaled approximately 3.5 man-years.
- National Uranium Resource Evaluation: Eau Claire Quadrangle, Wisconsin and Minnesota, Appendix A-D
- Appendices containing data on uranium availability in the Eau Claire Quadrangle to accompany a report on U.S. uranium resources in Wisconsin and Minnesota.
- Aerial Gamma Ray and Magnetic Survey, Final Report: Fairmont Quadrangle, Minnesota and Iowa
- Final report analyzing aerial gamma ray and magnetic data in the Fairmont quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
- Aerial Gamma Ray and Magnetic Survey, Final Report: La Crosse Quadrangle, Iowa/Minnesota/Wisconsin
- Final report analyzing aerial gamma ray and magnetic data in the La Crosse quadrangle, including a detailed geologic summary, interpretation report, reduced scale copies of all maps and profiles, histograms, and statistical tables for the quadrangle.
- Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 1: Thief River Falls, Grand Forks, Fargo, Milbank, Watertown, New Ulm and St. Cloud Quadrangles of North Dakota, South Dakota and Minnesota
- During the months of August and September, 1979, geoMetrics, Inc. collected 12,415 line miles of high sensitivity airborne radiometric and magnetic data in adjoining portions of South Dakota and Minnesota over seven 1 by 2 degree NTMS quadrangles (Thief River Falls, Grand Forks, Fargo, Milbank, Watertown, New Ulm, and St. Cloud). All radiometric and magnetic data were fully corrected and interpreted and are presented as eight volumes.
- Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Fargo Quadrangle of Minnesota/North Dakota
- This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Fargo quadrangle of Minnesota and North Dakota.
- Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Grand Forks Quadrangle of Minnesota/North Dakota
- This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Grand Forks quadrangle of Minnesota and North Dakota.
- Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Milbank Quadrangle of South Dakota, North Dakota, and Minnesota
- This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the Milbank quadrangle of South Dakota, North Dakota, and Minnesota.
- Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: New Ulm Quadrangle of Minnesota
- This report discusses aeromagnetic data that was obtained from uranium anomalies discovered in the New Ulm quadrangle of Minnesota.