| Abstract: | We present results from a high-resolution seismic refraction analysis of the shallow (approximately 2 km) crustal structure along the 107-km-long Trans-Alaska Crustal Transect Chugach reflection line in southern Alaska and a comparison with laboratory measurements of field samples. The refraction analysis includes the two-dimensional interpretation of several thousand first- and secondary-arrival travel times digitized from 1024-channel split-spread common shot gathers. The velocity model derived from this analysis better defines the location and geometry of terrane boundaries than does the normal incidence reflection section and agrees well with surface mapping of lithologies. Furthermore, the model predicts travel times within 100 ms of the reflection times recorded from the base of the Quaternary on the Chugach reflection section. -from Authors |
| Genre: | Article |
| ProdID: | 70015851 |
| Citation Author: | Brocher, T. M.; Fisher, M. A.; Geist, E. L.; Christensen, N. I. |
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| Citation End Page: | 4455 |
| Citation Issue: | B4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Journal of Geophysical Research |
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| Citation Number Of Pages: | 15 |
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| Citation Search Results Text: | A high-resolution seismic reflection/refraction study of the Chugach- Peninsular terrane boundary, southern Alaska; 1989; Article; Journal; Journal of Geophysical Research; Brocher, T. M.; Fisher, M. A.; Geist, E. L.; Christensen, N. I. |
| Citation Start Page: | 4441 |
| Citation Volume: | 94 |
| Citation Year: | 1989 |
| Type: | citation/reference |
| Text: | A high-resolution seismic reflection/refraction study of the Chugach- Peninsular terrane boundary, southern Alaska; 1989; Article; Journal; Journal of Geophysical Research; Brocher, T. M.; Fisher, M. A.; Geist, E. L.; Christensen, N. I. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sun, 1 Jan 1989 00:00 -0600 |
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