DTIC ADA130758: Lateral Variations in Geologic Structure pdf

DTIC ADA130758: Lateral Variations in Geologic Structure

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The principal objective of this study was: (1) to assess the usefulness of remote sensing digital imagery, principally LANDSAT multispectral scanning (MSS) data, for inferring lateral variations in geologic structure and tectonic setting; and (2) to determine the extent to which these inferred variations correlate with observed variations in seismic excitation from underground nuclear explosion test sites in the Soviet Union. Soviet, French and U.S. test sites have been investigated to compare their geologic and tectonic responses as seen by LANDSAT. The characteristics of ‘granite’ intrusive bodies exposed at Semipalatinsk (Degelen), North Africa (Hoggar), NTS (Climax stock), and an analog site in Maine (Mt. Katahdin), have been studied in detail. The tectonic stress field inferred from the tectonic release portion of seismic signatures of explosions in these three areas is compared with local and regional fracture patterns discernable from imagery. The usefulness of satellite synthetic aperture radar (SAR) to determine geologic conditions and delineate fault (fracture) patterns is demonstrated by the analysis of SEASAT data for an area in the eastern United States.

Algorithms to enhance structural boundaries and to use textures to identify rock types were developed and applied to several test sites

• Creator/s: Defense Technical Information Center
• Date: 5/1/1983
• Year: 1983
• Book Topics/Themes: DTIC Archive, Alexander, Shelton S., PENNSYLVANIA STATE UNIV UNIVERSITY PARK, *IMAGE PROCESSING, *PATTERN RECOGNITION, *STRUCTURAL GEOLOGY, *TECTONICS, SCANNING, STRESSES, DIGITAL SYSTEMS, RADAR IMAGES, NUCLEAR EXPLOSION TESTING, REMOTE DETECTORS, TEST FACILITIES, IGNEOUS ROCK, MAINE, SEDIMENTARY ROCK, MULTIBAND SPECTRAL RECONNAISSANCE, SPACEBORNE, NEVADA, NORTH AFRICA, SEISMIC SIGNATURES, TEXTURE, CLASSIFICATION, FAULTS(GEOLOGY), GRANITE, SYNTHETIC APERTURE RADAR, USSR, ALGORITHMS

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