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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

Description: 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.
Date: October 1979
Creator: EG & G GeoMetrics
Item Type: Refine your search to only Report
Location: None
open access

Aerial Radiometric and Magnetic Survey: Dickinson National Topographic Map, South Dakota, Volume 2

Description: This report is the second volume of a two-part set documenting the results of the analyses of the airborne gamma radiation and total magnetic field survey that was flown for the Dickinson National Topographic Map NL13-6. This volume includes the flight line magnetic field, temperature, pressure, altitude data plus magnetic field data as measured at a base station.
Date: 1979
Creator: Geo-Life
Item Type: Refine your search to only Report
Location: None
open access

Aerial Radiometric and Magnetic Survey: Lemmon National Topographic Map, South Dakota, Volume 2

Description: This report is the second volume of a two-part set documenting the results of the analyses of the airborne gamma radiation and total magnetic field survey that was flown for the Lemmon National Topographic Map NL13-9. This volume includes the flight line magnetic field, temperature, pressure, altitude data plus magnetic field data as measured at a base station.
Date: 1979
Creator: Geo-Life
Item Type: Refine your search to only Report
Location: None
open access

Aerial Gamma-Ray and Magnetic Survey, Final Report. Volume 1: Newcastle and Gillette Quadrangles (Wyoming/South Dakota) and Ekalaka Quadrangle (Montana, South and North Dakota)

Description: The following report is the first in a series of volumes presenting data recorded during the months of August and September, 1978, from a radiometric and magnetic survey taken in four quadrangles between eastern Wyoming, North and South Dakota, and southern Montana (Newcastle, Gillette and Ekalaka).
Date: April 1979
Creator: GeoMetrics, Inc.
Item Type: Refine your search to only Report
Location: None
open access

Stratigraphy and Geologic History of the Montana Group and Equivalent Rocks, Montana, Wyoming, and North and South Dakota

Description: From introduction: This is a progress report on regional stratigraphic and paleontologic studies of the Upper Cretaceous Montana Group and equivalent rocks in the northern part of the western interior of the United States. It presents preliminary data on the positions of strandlines during a 14-m.y. (million year) span of the Late Cretaceous as well as our interpretations of the geologic history of this period.
Date: 1973
Creator: Gill, James R. & Cobban, William Aubrey
Item Type: Refine your search to only Report
open access

Preliminary Digital Model of Ground-Water Flow in the Madison Group, Powder River Basin and Adjacent Areas, Wyoming, Montana, South Dakota, North Dakota, and Nebraska

Description: Abstract: A digital simulation model was used to analyze regional ground-water flow in the Madison Group aquifer in the Powder River Basin and adjacent areas. Most recharge to the aquifer originates in or near the outcrop areas of the Madison in the Bighorn Mountains and Black Hills , and most discharge occurs through springs and wells. Results from the model calculations indicate that the total flow through the aquifer in the modeled areas was approximately 200 cubic feet per second (5.7 cubic… more
Date: January 1976
Creator: Konikow, Leonard F.
Item Type: Refine your search to only Report
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