| Abstract: | Seismic activity in the Portland-Vancouver metropolitan area may be associated with various mapped faults that locally offset volcanic basement of Eocene age and younger. This volcanic basement is concealed in most places by young deposits, vegetation, and urban development. The US Geological Survey conducted an aeromagnetic survey in September 1992 to investigate the extent of these mapped faults and possibly to help identify other seismic and volcanic hazards in the area. The survey was flown approximately 240 m above terrain, along flight lines spaced 460 m apart, and over an area about 50 ?? 50 km. -from Authors |
| Genre: | Article |
| ProdID: | 70018877 |
| Citation Author: | Blakely, R. J.; Wells, R. E.; Yelin, T. S.; Madin, I. P.; Beeson, M. H. |
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| Citation End Page: | 1062 |
| Citation Issue: | 9 |
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| Citation Language: | English |
| Citation Larger Work Title: | Geological Society of America Bulletin |
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| Citation Number Of Pages: | 12 |
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| Citation Search Results Text: | Tectonic setting of the Portland-Vancouver area, Oregon and Washington: constraints from low-altitude aeromagnetic data; 1995; Article; Journal; Geological Society of America Bulletin; Blakely, R. J.; Wells, R. E.; Yelin, T. S.; Madin, I. P.; Beeson, M. H. |
| Citation Start Page: | 1051 |
| Citation Volume: | 107 |
| Citation Year: | 1995 |
| Type: | citation/reference |
| Text: | Tectonic setting of the Portland-Vancouver area, Oregon and Washington: constraints from low-altitude aeromagnetic data; 1995; Article; Journal; Geological Society of America Bulletin; Blakely, R. J.; Wells, R. E.; Yelin, T. S.; Madin, I. P.; Beeson, M. H. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1995 00:00 -0600 |
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