Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data

This dataset contains opal, organic carbon and nitrogen contents, and organic δ13C (carbon-13) and δN15 (nitrogen-15) stable isotopes that were analyzed on a sedimentary sequence spanning the past ~12,000 years from Dune Lake, a shallow groundwater-fed lake in the boreal forest region of central interior Alaska. The unusual hydrology of this system relative to most other lakes studied for paleoclimate in this region provides a novel insight into different seasonal aspects of Alaskan paleoclimatology. The record is consistent with a general long-term decrease in wintertime precipitation, possibly accompanied by an increase in permafrost extent, over the Holocene.

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Temporal Range

  • Begin:  1000-01-01T00:00:00Z
    End:  2014-06-11T00:00:00Z

Keywords

Resource Type dataset
Temporal Range Begin 1000-01-01T00:00:00Z
Temporal Range End 2014-06-11T00:00:00Z
Temporal Resolution N/A
Bounding Box North Lat 64.42320
Bounding Box South Lat 64.42320
Bounding Box West Long -149.90430
Bounding Box East Long -149.90430
Spatial Representation N/A
Spatial Resolution N/A
Related Links

106.266 : is a companion to dataset 106.449
Additional Information N/A
Resource Format N/A
Standardized Resource Format UNDEFINED FORMAT
Asset Size N/A
Legal Constraints

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Access Constraints none
Software Implementation Language N/A

Resource Support Name EOL Data Support
Resource Support Email datahelp@eol.ucar.edu
Resource Support Organization N/A
Distributor N/A
Metadata Contact Name EOL Data Support
Metadata Contact Email datahelp@eol.ucar.edu
Metadata Contact Organization N/A

Author Bruce P. Finney
Nancy H. Bigelow
Valerie A. Barber
Mary E. Edwards
Publisher N/A
Publication Date 2014-06-06T20:33:54
Digital Object Identifier (DOI) Not Assigned
Alternate Identifier 106.449
Resource Version N/A
Topic Category inlandWaters
Progress completed
Metadata Date 2025-08-01T18:02:03Z
Metadata Record Identifier edu.ucar.eol::106.449
Metadata Language eng; USA
Suggested Citation Bruce P. Finney, Nancy H. Bigelow, Valerie A. Barber, Mary E. Edwards. (2014). Dune Lake, Alaska 12,000 Year Multiproxy Sediment Data. https://data.eol.ucar.edu/dataset/106.449. Accessed 24 October 2025.

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