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 Name                           Last modified      Size  
 Parent Directory                                    -   
 plate-1.pdf                    2018-11-05 10:50  9.6M  
 plate-2.pdf                    2018-11-05 10:50  7.5M  
 plate-3.pdf                    2018-11-05 10:50  4.8M  
 report-thumb.jpg               2018-11-05 10:50  347K

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U.S. Department of the Interior | U.S. Geological Survey
URL: https://pubs.usgs.gov/of/1981/0531/
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