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Luminescence dating of sand deposits related to late Pleistocene human occupation at the Cactus Hill Site, Virginia, USA

Feathers, James K; Rhodes, Edward; Huot, Sebastien; Mcavoy, Joseph M.

Description

Optically stimulated luminescence (OSL) ages, obtained primarily using single grains, are reported for 13 sediment samples from the Cactus Hill site, a culturally stratified sand dune in Virginia. The site has drawn interest because of a blade level, potentially representing an early occupation of humans in North America, a few centimeters below a Clovis artifact layer. Pre-Clovis occupation in North America is disputed. Most of the ages are drawn from quartz grains, but the quartz at this site...[Show more]

dc.contributor.authorFeathers, James K
dc.contributor.authorRhodes, Edward
dc.contributor.authorHuot, Sebastien
dc.contributor.authorMcavoy, Joseph M.
dc.date.accessioned2015-12-07T22:23:35Z
dc.identifier.issn1871-1014
dc.identifier.urihttp://hdl.handle.net/1885/20771
dc.description.abstractOptically stimulated luminescence (OSL) ages, obtained primarily using single grains, are reported for 13 sediment samples from the Cactus Hill site, a culturally stratified sand dune in Virginia. The site has drawn interest because of a blade level, potentially representing an early occupation of humans in North America, a few centimeters below a Clovis artifact layer. Pre-Clovis occupation in North America is disputed. Most of the ages are drawn from quartz grains, but the quartz at this site appears to saturate at a young age, so analysis on potassium feldspar grains was also performed on the deepest samples. Geologic evidence suggests deflation, small-scale turbation, and low accretion rates have compressed and slightly mixed some of the deposits. The diameters of OSL sampling tubes therefore cover long time spans for many samples, so a minimum age is determined statistically for the top of sampling volumes. The derived ages, with one exception, are in the correct stratigraphic order and are broadly in agreement with radiocarbon ages. This seems to confirm the overall integrity of the strata and places the deposit containing the pre-Clovis artifacts at about 18 ka. Further evaluation and constraint of the ages is provided by Bayesian analysis.
dc.publisherElsevier
dc.sourceQuaternary Geochronology
dc.subjectKeywords: age determination; artifact; Bayesian analysis; deflation; dune; feldspar; luminescence dating; occupation; Pleistocene; potassium; quartz; sand; Cactus Hill; North America; United States; Virginia; Cactaceae
dc.titleLuminescence dating of sand deposits related to late Pleistocene human occupation at the Cactus Hill Site, Virginia, USA
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume1
dc.date.issued2006
local.identifier.absfor040303 - Geochronology
local.identifier.absfor210102 - Archaeological Science
local.identifier.ariespublicationu3533991xPUB14
local.type.statusPublished Version
local.contributor.affiliationFeathers, James K, University of Washington
local.contributor.affiliationRhodes, Edward, College of Asia and the Pacific, ANU
local.contributor.affiliationHuot, Sebastien, University of Quebec
local.contributor.affiliationMcavoy, Joseph M., Nottoway River Survey
local.description.embargo2037-12-31
local.bibliographicCitation.issue3
local.bibliographicCitation.startpage167
local.bibliographicCitation.lastpage187
local.identifier.doi10.1016/j.quageo.2006.05.011
dc.date.updated2015-12-07T09:19:54Z
local.identifier.scopusID2-s2.0-34250895900
CollectionsANU Research Publications

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