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Cryostratigraphy and Permafrost Evolution in the Lacustrine Lowlands of West-Central Alaska

Dates

Year
2014

Citation

Kanevskiy, Mikhail, Jorgenson, Torre, Shur, Yuri, O'Donnell, Jonathan A., Harden, Jennifer W., Zhuang, Qianlai, and Fortier, Daniel, 2014, Cryostratigraphy and Permafrost Evolution in the Lacustrine Lowlands of West-Central Alaska: Permafrost and Periglacial Processes, v. 25, no. 1, p. 14-34.

Summary

The influence of permafrost growth and thaw on the evolution of ice-rich lowland terrain in the Koyukuk-Innoko region of interior Alaska is fundamental but poorly understood. To elucidate this influence, the cryostratigraphy and properties of perennially frozen sediments from three areas in this region are described and interpreted in terms of permafrost history. The upper part of the late Quaternary sediments at the Koyukuk and Innoko Flats comprise frozen organic soils up to 4.5 m thick underlain by ice-rich silt characterised by layered and reticulate cryostructures. The volume of visible segregated ice in silt locally reaches 50 per cent, with ice lenses up to 10 cm thick. A conceptual model of terrain evolution from the Late Pleistocene [...]

Contacts

Tags

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 http://dx.doi.org/10.1002/ppp.1800
ISSN http://sciencebase.gov/vocab/identifierScheme 1045-6740, 1045-6740

Citation Extension

journalPermafrost and Periglacial Processes
parts
typeNotes
value9271
typePages
value14-34
typeVolume
value25
typeNumber
value1
citationTypeJournal Article

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