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Iron absorption band analysis for the discrimination of iron rich zonesThe author has identified the following significant results. A lineament study of the Nevada test site is near completion. Two base maps (1:500,000) have been prepared, one of band 7 lineaments and the other of band 5 lineaments. In general, more lineaments and more faults are seen on band 5. About 45% of the lineaments appear to be faults and contacts, the others being predominantly streams, roads, railway tracks, and mountain crests. About 25% of the lineaments are unidentified so far. Special attention is being given to unmapped extensions of faults, groups of unmapped lineaments, and known mineralized areas and alteration zones. Earthquake epicenters recorded from 1869 to 1963 have been plotted on the two base maps. Preliminary examination as yet indicates no basic correlation with the lineaments. Attempts are being made to subtract bands optically, using an I2S viewer, an enlarger, and a data color viewer. Success has been limited so far due to technical difficulties, mainly vignetting and poor light sources, within the machines. Some vegetation and rock type differences, however, have been discerned.
Document ID
19730009639
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Rowan, L. C.
(Geological Survey Washington, DC, United States)
Date Acquired
September 2, 2013
Publication Date
January 30, 1973
Subject Category
Geophysics
Report/Patent Number
NASA-CR-130788
E73-10338
Accession Number
73N18366
Funding Number(s)
CONTRACT_GRANT: NASA ORDER S-70243-AG
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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