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Please use this identifier to cite or link to this item: http://hdl.handle.net/11299/60188

Title: RI-04 Interpretation of Lake Washington Magnetic Anomaly, Meeker County, Minnesota
Authors: Sims, P.K.
Austin, G.S.
Ikola, Rodney J.
Issue Date: 1964
Publisher: Minnesota Geological Survey
Citation: Sims, P.K., Austin, G.S. and Ikola R.J., 1964, Interpretation of Lake Washington Magnetic Anomaly, Meeker County, Minnesota, Minnesota: Minnesota Geological Survey Report of Investigations 4, 13 p.
Series/Report no.: RI
4
Abstract: A magnetic anomaly centered at Lake Washington, in southeastern Meeker County, has been outlined by a ground magnetometer survey. The anomaly is arcuate in outline, about 8.5 miles long and a maximum of 5 miles wide, and has a maximum amplitude greater than 3,000 gammas. A gravity traverse was made across the anomaly to aid in interpretation. Combined magnetic and gravity data are interpreted to indicate that the source is a basin-shaped body having a substantially greater density than the adjacent rocks that lies at a shallow depth. The lithology of the source is not known because of a lack of subsurface data, but is inferred to be either Precambrian iron-formation or mafic igneous rock. The anomaly warrants further investigation.
URI: http://purl.umn.edu/60188
ISSN: 0076-9177
Appears in Collections:Report of Investigations

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umn23377.pdfRI-4 [Map Plate 1]1.6 MBPDFView/Open
mgs-224.pdfRI-4254.33 kBPDFView/Open

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