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Variations in late Quaternary wind intensity from grain-size partitioning of loess deposits in the Nenana River Valley, Alaska

Dates

Year
2017

Citation

DiPietro, Lyndsay M., Driese, Steven G., Nelson, Tyler W., and Harvill, Jane L., 2017, Variations in late Quaternary wind intensity from grain-size partitioning of loess deposits in the Nenana River Valley, Alaska: Quaternary Research, v. 87, no. 2, p. 258-274.

Summary

A high-resolution column of 57 loess samples was collected from the Dry Creek archaeological site in the Nenana River Valley in central Alaska. Numerical grain-size partitioning using a mixed Weibull function was performed on grain-size distributions to obtain a reconstructed record of wind intensity over the last ~15,000 yr. Two grain-size components were identified, one with a mode in the coarse silt range (C1) and the other ranging from medium to very coarse sand (C2). C1 dominates most samples and records regional northerly winds carrying sediment from the Nenana River. These winds were strong during cold intervals, namely, the Carlo Creek glacial readvance (14.2–14 ka), a late Holocene Neoglacial period (4.2–2.7 ka), and recent [...]

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  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

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Additional Information

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Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1017/qua.2017.3
ISSN http://sciencebase.gov/vocab/identifierScheme 0033-5894

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