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Soft-sediment deformation produced by tides in a meizoseismic area, Turnagain Arm, Alaska

Dates

Year
2007

Citation

Greb, S. F., and Archer, A. W., 2007, Soft-sediment deformation produced by tides in a meizoseismic area, Turnagain Arm, Alaska: Geology, v. 35, no. 5, p. 435-438.

Summary

Turnagain Arm is a semidiurnal hypertidal estuary in southeastern Alaska with a recorded tidal range of 9 m. Contorted bedding and flow rolls preserved in tidal sediments within the estuary have previously been interpreted as resulting from the Mw 9.2 Great Alaskan earthquake of 1964. Horizons of flow rolls between undeformed beds in sediments and rock strata have been used to infer ancient earthquakes in other areas. Although many types of soft-sediment deformation structures can be formed by earthquakes, observations of sedimentation on tidal flats in the inner parts of Turnagain Arm in the summers of 2003 and 2004 show that a wide range of soft-sediment deformation structures, similar to those inferred to have been formed by earthquakes, [...]

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Provenance

Data source
File Processing
File Process
Type
End Note
Reference Item
3397 record import test
Reference File
NWBLCC-20160406.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1130/G23209A.1
ISSN http://sciencebase.gov/vocab/identifierScheme 0091-7613, 0091-7613

Citation Extension

journalGeology
parts
typeNotes
value9364
typePages
value435-438
typeVolume
value35
typeNumber
value5
citationTypeJournal Article

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