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NASA Technical Reports Server (NTRS) 19770007608: Applicability of ... |
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by NASA Technical Reports Server (NTRS) |
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The author has identified the following significant |
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results. Late autumn imagery provides the advantages of |
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topographic shadow enhancement and low cloud cover. |
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Mapping of rock units was done locally with good results |
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for alluvium, basin fill, volcanics, inclined Paleozoic |
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and Mesozoic beds, and host strata of bentonite beds. |
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Folds, intrusive domes, and even dip directions were |
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mapped where differential erosion was significant. |
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However, mapping was not possible for belt strata, was |
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difficult for granite, and was hindered by conifers |
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compared to grass cover. Expansion of local mapping |
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required geologic control and encountered significant |
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areas unmappable from ERTS imagery. Annotation of |
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lineaments provided much new geologic data. By |
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extrapolating test site comparisons, it is inferred that |
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27 percent of some 1200 lineaments mapped from western |
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Montana represent unknown faults. The remainder appear to |
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be localized mainly by undiscovered faults and sets of |
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minor faults or joints. |
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Date Published: 2016-07-21 03:41:54 |
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Identifier: NASA_NTRS_Archive_19770007608 |
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Item Size: 67715945 |
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Language: english |
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Media Type: texts |
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# Topics |
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NASA Technical Reports Server (NTRS);... |
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NASA_NTRS_Archive |
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# Uploaded by |
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@chris85 |
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