Aeromagnetic anomaly (total magnetic intensity anomaly (relative to the earth's magnetic field, interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth) map of Minnesota, scale 1:3,168,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22626.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21096.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21097.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21100.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21101.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21092.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21093.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21098.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21099.pdf
Total magnetic intensity anomaly, contour, scale 1:100,000.Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21118.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21094.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21095.pdf
Total magnetic intensity anomaly, contour, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map contours (lines of equal magnetic intensity) indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21103.pdf
Total magnetic intensity anomaly (relative to the earth's magnetic field), color coded, scale 1:250,000. Interpretation of magnetic data collected from airborne surveys, the map colors indicate the distribution and concentration of magnetic minerals (primarily iron-bearing) within the upper crust of the earth. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn21102.pdf
The official 1873 founding document of the Minnesota Academy of Natural Sciences (later to become the Minnesota Academy of Science) contains its original Constitution and By-Laws. Article II states that, It shall be the object of the Academy to observe and investigate natural phenomena; to make collections of specimens illustrating the various departments of science; to name, classify, and preserve the same; also, to discuss such questions as shall come within the province of the Academy. The By-Laws direct the establishment of a museum, as well as regular meetings at which scientific investigations will be communicated either orally or in writing.
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Minneapolis and St. Paul urban area, scale 1:48,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22445.pdf
Bedrock topography (elevation of the bedrock sruface) map of the Minneapolis and St. Paul urban area, scale 1:48,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22446.pdf
Jirsa, Mark A.; Olsen, Bruce M.; Bloomgren, Bruce A.
Date Created:
1986
Description:
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Twin Cities, seven-county metropolitan area, scale 1:125,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22442.pdf
Jirsa, Mark A.; Olsen, Bruce M.; Bloomgren, Bruce A.
Date Created:
1986
Description:
Bedrock topopgrapy (elevation of the bedrock surface) of the Twin Cities, seven-county metropolitan area, scale 1:125,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22443.pdf
Map showing interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) in the area of Minneapolis-St. Paul, scale 1:24,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22379.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of Duluth and Vicinity, St. Louis County, Minnesota, scale 1:24,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23362.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Babbitt SW quadrangle, scale 1:24,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22579.pdf
Bedrock topography (elevation of the bedrock surface) map, east-central and southeastern Minnesota, scale 1:500,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22438.pdf
Isopachs (lines of equal stratigraphic thickness) of Cretaceous and Quaternary rocks and sediments in east-central and southeastern Minnesota, scale 1:500,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22439.pdf
Geologic diagram, Cedar Valley Formation, southern Minnesota, scale 1 inch = 3 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23382.pdf
Geologic diagrams, Cedar Valley Formation, southern Minnesota and adjacent northern Iowa, scale 1 inch = 3 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23383.pdf
This printed Constitution of the Minnesota Academy of Science is from around 1937. It is very similar to the 1933 Constitution but has removed the associate membership category; the By-Laws set the annual dues as "one dollar for each member." The election process for members is also different, requiring nomination by a member, recommendation by the Council, and a two-thirds vote of the organization, at which point "he shall be duly elected."
Longitudinal Section through the Biwabik and Gunflint Formations, scale 1 inch = 1.5 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23280.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Western Mesabi District, Minnesota, scale 1:62,500. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23279.pdf
Evaluation of regional geology and geochemistry samples indicating the extent that hydrothermal fluids affected Paleozoic rocks in southeastern Minnesota. Superseded by Minnesota Geological Survey publication IC-41.
Map of Minnesota showing localities of Cretaceous rocks described in the RI-5 report, scale 1 inch = about 35 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23378.pdf
Contour map (lines of equal elevation) of the present altitude of the Pre-Cretaceous unconformity (erosional surface cut into older rocks) in Minnesota, scale 1 inch = about 32 miles. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23379.pdf
Interpretations of bedrock geology (distribution of rock at the land surface and beneath surface sediments) of the Precambrian rocks of the Granite Falls and Montevideo Areas, Minnesota, scale 1:24000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn23395.pdf
General descriptive information about the central Duluth Complex maps including drillhole facts and descriptions of map units. Text only, no maps included.
Recovery and digitization of geophysical and sample points and data from 1:100,000 paper maps of the COGEOMAP (cooperative mapping program with U.S. Geological Survey) area, text only
Map showing the distribution of iron-formation rocks along the main Cuyuna iron range, scale 1:48,000. Electronic file available at: ftp://mgsftp2.mngs.umn.edu/map_catalog/pdf/umn22453.pdf
The April 1971 edition of the Geological Society of Minnesota (GSM) newsletter included an updated map of the location of bronze geologic markers, an article on how agates form, and a story on the early history of society.
The April-May-June 1978 edition of the Geological Society of Minnesota (GSM) newsletter announced a new book called Rocky Roots, and included a report on a trip to southeastern Minnesota.
The April-May-June 1979 edition of the Geological Society of Minnesota (GSM) newsletter included the second part of a society history prepared for the 40th anniversary, along with regular meeting notices.
The August-September-October 1985 edition of the Geological Society of Minnesota (GSM) newsletter reported on society affairs, including a highly successful state fair booth.
The August-September-October 1986 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message from Warren Mitchell, and various society notices.
The August-September-October 1988 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, and news of a conference at Gustavus Adolphus College featuring noted geologists.
The December 1970 edition of the Geological Society of Minnesota (GSM) newsletter included a message from President Sam Mayo, along with various meeting notices.
The December-January-February 1972-1973 edition of the Geological Society of Minnesota (GSM) newsletter included various meeting notices, and announced forthcoming publication of a Minnesota Geological Survey book on geology of Minnesota.
The December-January-February 1980-1981 edition of the Geological Society of Minnesota (GSM) newsletter reported on a field trip led by Gerry Webers on Cambrian and Ordovician strata of Minnesota, along with customary society notices.
The December-January-February 1981-1982 edition of the Geological Society of Minnesota (GSM) newsletter included part two of the Black Hills field trip report, and regular society notices.
The December-January-February 1982-1983 edition of the Geological Society of Minnesota (GSM) newsletter included society news, and a report on the field trip to the Mesabi Range, as well as a Memorial to Ruth Benson.
The December-January-February 1984-1985 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message by George Johnson, and several society notices.
The February-March-April 1986 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, and news that Jane Goodall would speak at the University.
The February-March-April 1987 edition of the Geological Society of Minnesota (GSM) newsletter included various notices, and an indication that the new Minnesota Geological Survey Director Priscilla Grew would be speaker at the Spring Banquet.
The February-March-April 1988 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, as well as news of the death of Rhea Wright, and Frederick P. Bradford.
The February-March-April 1989 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message from Fran Corcoran, and society notices.
The January-February 1972 edition of the Geological Society of Minnesota (GSM) newsletter included the President's message, as well as a story on the Cuyuna Range.
The January-February 1977 edition of the Geological Society of Minnesota (GSM) newsletter included a report on the field trip to the Keweenaw Peninsula.
The January-February-March 1974 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices and an article on the Minnesota River Valley.
The January-February-March 1978 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, and the second part of a story on the North Shore, based on a trip led by Macalester professor David Southwick.
The January-February-March 1979 edition of the Geological Society of Minnesota (GSM) newsletter reported on society affairs, and included the first part of a summary of society history prepared for the 40th anniversary.
The July/August 1970 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, a story on the fossil collection of Louis Eggerichs, and text from several geological markers.
The July-August-September 1973 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, an overview of a trip to western Minnesota on Pleistocene geology, news regarding the new Minnesota Geological Survey director Matt Walton, who had attended a Society field trip, and an article on African geology.
The July-August-September 1975 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, humor, and a report on work in Antarctica by Dr. Gerald Webers.
The July-August-September 1978 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, and an article on continental drift.
The July-August-September 1978 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, and an article on continental drift.
The June-July-August 1979 edition of the Geological Society of Minnesota (GSM) newsletter included the third part of a society history prepared for the 40th anniversary, along with regular meeting notices.
The June-July-August 1983 edition of the Geological Society of Minnesota (GSM) newsletter included society news, including the President's message from Dick Uthe.
The January/February 1970 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, as well as a book review on 'Minnesota Rocks and Waters.'
The July/August 1969 edition of the Geological Society of Minnesota (GSM) newsletter announced the new GSM seal, designed by Wilma Monesrud, along with regular meeting notices.
The March/April 1970 edition of the Geological Society of Minnesota (GSM) newsletter included various meeting notices, and an article on the Cuyuna Range.
The May/June 1970 edition of the Geological Society of Minnesota (GSM) newsletter announced matters such as monthly summer field trips and the state fair booth.
The November/December 1969 edition of the Geological Society of Minnesota (GSM) newsletter described a posthumous award to George Rickert, indicated that Wilma Monesrud had revised the new seal to make the hand lens more recognizable, provided a report on a field trip to the Cuyuna Range, and included an article on mining in the Black Hills and a questionnaire on how best to do field trips.
The March-April 1972 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, the President's Letter, and news of the death of Mrs. E.G. Fritter.
The March-April 1976 edition of the Geological Society of Minnesota (GSM) newsletter included various society notices, news of the death of Lawrence King, and an article by Marcia Gunnville on exploring the environment.
The March-April-May 1980 edition of the Geological Society of Minnesota (GSM) newsletter reported on society affairs, mentioned Minnesota Geological Survey slide shows on glacial geology and the Anoka sand plain prepared by Marcia Gunnville, and included memorials to Myrtle Fore, Helene Becker, and Mike Vaclavek.
The March-April-May 1981 edition of the Geological Society of Minnesota (GSM) newsletter included memorials to George H. Schwartz and Margaret A. Paschke, along with regular society notices.
The March-April-May 1982 edition of the Geological Society of Minnesota (GSM) newsletter included society notices, and announcement of four field trips over the summer to examine Minnesota geology.