| Abstract: | In previous refraction and wide-angle reflection experiments in the Kenya Rift there were problems with poor signal-noise ratios which made good seismic interpretation difficult. Careful planning and preparation for KRISP 90 has substantially overcome these problems and produced excellent seismic sections in a difficult environment. Noise levels were minimized by working, as far as possible, at times of the day when conditions were quiet, while source signals were optimized by using dispersed charges in water where it was available and waterfilled boreholes in most cases where it was not. Seismic coupling at optimum depth in water has been found to be more than 100 times greater than it is in a borehole in dry loosely compacted material. Allowing for the source coupling, a very marked difference has been found between the observation ranges in the rift and those on the flanks, where the observation ranges are greater. These appear to indicate a significant difference in seismic transmission through the two types of crust. ?? 1994. |
| Genre: | Article |
| ProdID: | 70017672 |
| Citation Author: | Jacob, A. W. B.; Vees, R.; Braile, L. W.; Criley, E. |
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| Citation End Page: | 79 |
| Citation Issue: | 1-4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Tectonophysics |
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| Citation Number Of Pages: | 19 |
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| Citation Search Results Text: | Optimization of wide-angle seismic signal-to-noise ratios and P-wave transmission in Kenya; 1994; Article; Journal; Tectonophysics; Jacob, A. W. B.; Vees, R.; Braile, L. W.; Criley, E. |
| Citation Start Page: | 61 |
| Citation Volume: | 236 |
| Citation Year: | 1994 |
| Type: | citation/reference |
| Text: | Optimization of wide-angle seismic signal-to-noise ratios and P-wave transmission in Kenya; 1994; Article; Journal; Tectonophysics; Jacob, A. W. B.; Vees, R.; Braile, L. W.; Criley, E. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
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