Submarine sedimentary features on a fjord delta front, Queen Inlet, Glacier Bay, Alaska
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Abstract
Side-scan sonar images provide a view of an actively changing delta front in a marine outwash fjord in Glacier Bay, Alaska. Numerous interconnected gullies and chute-like small channels form paths for the transport of sand and coarse silt from the braided glacial outwash streams on the delta plain to the sinuous turbidity-current channels incised into the fjord floor. These turbidity-current channels carry coarse sediment through the fjord and into the adjoining glacial trunk valley. Several sedimentary processes affect the development of this delta front: overflow plumes deposit fine sediment; sediment gravity flows result from episodic delivery of large loads of coarse sediment; and mass movement may be triggered by earthquakes and, more regularly, by spring-tidal drawdown or hydraulic loading.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Submarine sedimentary features on a fjord delta front, Queen Inlet, Glacier Bay, Alaska |
| Series title | Canadian Journal of Earth Sciences |
| DOI | 10.1139/e92-049 |
| Volume | 29 |
| Issue | 3 |
| Year Published | 1992 |
| Language | English |
| Publisher | NRC Research Press |
| Contributing office(s) | Pacific Coastal and Marine Science Center |
| Description | 9 p. |
| First page | 565 |
| Last page | 573 |
| Google Analytic Metrics | Metrics page |