| Abstract: | As part of a geomorphology study of the lower Copper River, three surface geophysical techniques were tested for their ability to detect infilled scour holes at bridge piers, old river channels, and subbottom deposits in a glacier-formed lake. The methods were (1) ground-penetrating radar, (2) continuous seismic reflection using a color fathometer, and (3) continuous seismic reflection using a tuned transducer. In water depths less than 20 feet, ground-penetrating radar detected infilled scour holes at bridge piers and old river channels on land. Continuous seismic reflection using a tuned transducer was effective in water and detected infilled scour holes at bridge piers and subbottom deposits in a glacier lake. The color fathometer was useful in determining depths of water but was not able to penetrate the subbottom. |
| Genre: | USGS Numbered Series |
| ProdID: | 26289 |
| Citation Author: | Brabets, T. P. |
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| Citation Language: | ENGLISH |
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| Citation Phsyical Description: | iv, 47 p. :ill. (some col.), maps ;28 cm. |
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| Citation Publisher: | U.S. Geological Survey ;
Earth Science Information Center, Open-File Reports Section [distributor], |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 94-4165 |
| Citation Search Results Text: | Application of surface geophysical techniques in a study of the geomorphology of the lower Copper River, Alaska; 1995; WRI; 94-4165; Brabets, T. P. |
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| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Application of surface geophysical techniques in a study of the geomorphology of the lower Copper River, Alaska; 1995; WRI; 94-4165; Brabets, T. P. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1994/4165/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1994/4165/report.pdf |
| Date Other: | Fri, 1 Sep 1995 00:00 -0500 |
| Publisher: | U.S. Geological Survey ;
Earth Science Information Center, Open-File Reports Section [distributor], |
