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Identification of geostructures of continental crust particularly as they relate to mineral resource evaluationThe author has identified the following significant results. Lakes in the Arctic Coastal Plain of Alaska are dominantly elongate, with their long axes parallel and trending about N 9 W. On ERTS-1 imagery, an additional strong east-trending regional lineation, not previously recognized on aerial photographs or in field study, was noted. In addition, the alignment of many small lakes forms a large and a small ellipse superimposed on the regional lineation. Fischer and Lathram find that the trend of this lineation is parallel to the trend of deflections in contours of the magnetic and gravity fields in the area, and parallel to westerly deflections in the northwest ends of northwest-trending folds mapped to the south. These data suggest that heretofore unsuspected structures may be concealed beneath Quaternary mantling sediments in the area of the image. The strata in these folds would be younger than those tapped by the oil wells of the Umiat field to the south, and favorable sandstone facies may occur in the area. The significance of these observations to oil exploration in northern Alaska needs to be evaluated further.
Document ID
19730009626
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Gryc, G. (Geological Survey Menlo Park, CA, United States)
Lathram, E. H. (Geological Survey Menlo Park, CA, United States)
Date Acquired
September 2, 2013
Publication Date
December 31, 1972
Subject Category
Geophysics
Report/Patent Number
E73-10321
NASA-CR-130739
Accession Number
73N18353
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-70243-AG-1
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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