NDLI: Evaluation of erts-1 imagery for mapping quaternary deposits and landforms in the great plains and midwest (Document No: 19730010649)

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Evaluation of erts-1 imagery for mapping quaternary deposits and landforms in the great plains and midwest (Document No: 19730010649)

Content Provider	NASA Technical Reports Server (NTRS)
Author	Hallberg, G. R.
Copyright Year	1973
Description	The author has identified the following significant results. The main landform associations and larger landforms are readily identifiable on the better images and commonly the gross associations of surficial Quaternary deposits also can be differentiated, primarily by information on landforms and soils. Maps showing the Quaternary geologic-terrain units that can be differentiated from the ERTS-1 images are being prepared for 20-odd potential study areas in Illinois, Iowa, Missouri, Kansas, Nebraska, and South Dakota. Among the more distinct features are the major moraines and outwash channels of the last (Wisconsin) glaciation. Analysis of dissection/drainage patterns from the synoptic imagery is proving useful for detecting anomalies that may be caused by stream diversions and moraines of pre-Wisconsin glaciations, by variable loess deposition, by tectonism, and other factors. Numerous abandoned river valleys have been mapped. Trend-lines of several known pre-Wisconsin moraine systems have been identified in Iowa, Nebraska, and Kansas, and also several similar trend-lines, that may indicate previously unknown moraine systems of middle and possibly early Pleistocene age, have been found in Iowa and Missouri. The area inundated by a major flood in southwestern Iowa also has been delineated from ERTS-1 imagery.
File Size	1822680
Page Count	27
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19730010649
Archival Resource Key	ark:/13960/t18m22t9f
Language	English
Publisher Date	1973-01-01
Access Restriction	Open
Subject Keyword	Geophysics Soils Landforms Geomorphology Geology Earth Resources Program Mapping Rivers Floods Imagery Great Plains Corridor North America Land Use Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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