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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.
Date:
May 1945
Creator:
Cash, Frank E. & Larsen, Reuben D.
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Ashland Quadrangle (Wisconsin, Michigan, and Minnesota)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Ashland quadrangle including maps documenting geophysical and geochemical data.
Date:
May 1978
Creator:
GeoMetrics, Inc.
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2: Iron River Quadrangle (Michigan and Wisconsin)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Iron River quadrangle including maps documenting geophysical and geochemical data.
Date:
May 1978
Creator:
GeoMetrics, Inc.
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2a: Ashland Quadrangle (Wisconsin, Michigan, and Minnesota)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Ashland quadrangle including magnetic, ancillary and radiometric data.
Date:
May 1978
Creator:
GeoMetrics, Inc.
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 2a: Iron River Quadrangle (Michigan and Wisconsin)
Second volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of the Iron River quadrangle including magnetic, ancillary and radiometric data.
Date:
May 1978
Creator:
GeoMetrics, Inc.
System:
The UNT Digital Library
Aerial Gamma Ray and Magnetic Survey, Final Report. Volume 1: Peninsula Portion, Hancock Quadrangle (Michigan), Ashland Quadrangle (Wisconsin, Minnesota, and Michigan), Iron River Quadrangle (Michigan and Wisconsin), and Marquette Quadrangle (Michigan)
First volume of a report documenting a high-sensitivity airborne radiometric and magnetic survey of four quadrangles in Wisconsin, Minnesota, and Michigan including documentation about data collection and analysis.
Date:
May 1979
Creator:
GeoMetrics, Inc.
System:
The UNT Digital Library