Submarine sedimentary features on a fjord delta front, Queen Inlet, Glacier Bay, Alaska

P. R. Carlson, R. D. Powell, Andrew C Phillips

Research output: Contribution to journalArticlepeer-review

Abstract

Side-scan sonar images provide a view of an actively changing delta front in this marine outwash fjord. 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. -Authors

Original languageEnglish (US)
Pages (from-to)565-573
Number of pages9
JournalCanadian Journal of Earth Sciences
Volume29
Issue number3
DOIs
StatePublished - Jan 1 1992
Externally publishedYes

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Submarine sedimentary features on a fjord delta front, Queen Inlet, Glacier Bay, Alaska'. Together they form a unique fingerprint.

Cite this