| Abstract: | Surficial sediments of the Kodiak shelf, Gulf of Alaska, contain various amounts of volcanic ash whose physical properties indicate that it originated from the 1912 Katmai eruption. The distribution of ash is related to the shelf physiography and represents redistribution by oceanic circulation rather than the original depositional pattern from the volcanic event. The ash distribution can be used, in conjunction with the distribution of grain sizes, as an indicator of present-day sediment dispersal patterns on the shelf. No significant modern input of sediment is occurring on the Kodiak shelf, which is mostly covered by Pleistocene glacial deposits. Coarse-grained sediments on flat portions of shallow banks apparently are being winnowed, with the removed ash-rich fine material being deposited in shallow depressions on the banks and in three of the four major troughs that cut transversely across the shelf. The other major trough seems to be experiencing a relatively high-energy current regime, with little deposition of fine material. ?? 1979. |
| Genre: | Article |
| ProdID: | 70010363 |
| Citation Author: | Hampton, M. A.; Bouma, A. H.; Frost, T. P.; Colburn, I. P. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 356 |
| Citation Issue: | 1-4 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Marine Geology |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | 10 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Volcanic ash in surficial sediments of the Kodiak shelf - An indicator of sediment dispersal patterns; 1979; Article; Journal; Marine Geology; Hampton, M. A.; Bouma, A. H.; Frost, T. P.; Colburn, I. P. |
| Citation Start Page: | 347 |
| Citation Volume: | 29 |
| Citation Year: | 1979 |
| Type: | citation/reference |
| Text: | Volcanic ash in surficial sediments of the Kodiak shelf - An indicator of sediment dispersal patterns; 1979; Article; Journal; Marine Geology; Hampton, M. A.; Bouma, A. H.; Frost, T. P.; Colburn, I. P. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1979 00:00 -0600 |
| Publisher: | |
