Differences in 14C age between stratigraphically associated charcoal and marine shell from the Archaic Period site of Kilometer 4, southern Peru

Old wood or old water?

Douglas James Kennett, B. Lynn Ingram, John R. Southon, Karen Wise

Research output: Contribution to journalArticle

50 Citations (Scopus)

Abstract

Consistently large differences occur in the calibrated 14C ages of stratigraphically associated shell and charcoal samples from Kilometer 4, an Archaic Period archaeological site located on the extreme south coast of Peru. A series of nine shell and charcoal samples were collected from a Late Archaic Period (∼6000-4000 BP) sector of the site. After calibration, the intercepts of the charcoal dates were ∼100-750 years older than the paired shell samples. Due to the hyper-arid conditions in this region that promote long-term preservation of organic material, we argue that the older charcoal dates are best explained by people using old wood for fuel during the Middle Holocene. Given this "old wood" problem, marine shell may actually be preferable to wood charcoal for dating archaeological sites in coastal desert environments as in southern Peru and Northern Chile.

Original languageEnglish (US)
Pages (from-to)53-58
Number of pages6
JournalRadiocarbon
Volume44
Issue number1
DOIs
StatePublished - Jan 1 2002

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charcoal
shell
water
desert
Archaic Period
Water
Marine Shell
Wood
Charcoal
Peru
Holocene
calibration
coast
Shell
archaeological site
Coast
Archaeological Sites

All Science Journal Classification (ASJC) codes

  • Archaeology
  • Earth and Planetary Sciences(all)

Cite this

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title = "Differences in 14C age between stratigraphically associated charcoal and marine shell from the Archaic Period site of Kilometer 4, southern Peru: Old wood or old water?",
abstract = "Consistently large differences occur in the calibrated 14C ages of stratigraphically associated shell and charcoal samples from Kilometer 4, an Archaic Period archaeological site located on the extreme south coast of Peru. A series of nine shell and charcoal samples were collected from a Late Archaic Period (∼6000-4000 BP) sector of the site. After calibration, the intercepts of the charcoal dates were ∼100-750 years older than the paired shell samples. Due to the hyper-arid conditions in this region that promote long-term preservation of organic material, we argue that the older charcoal dates are best explained by people using old wood for fuel during the Middle Holocene. Given this {"}old wood{"} problem, marine shell may actually be preferable to wood charcoal for dating archaeological sites in coastal desert environments as in southern Peru and Northern Chile.",
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Differences in 14C age between stratigraphically associated charcoal and marine shell from the Archaic Period site of Kilometer 4, southern Peru : Old wood or old water? / Kennett, Douglas James; Ingram, B. Lynn; Southon, John R.; Wise, Karen.

In: Radiocarbon, Vol. 44, No. 1, 01.01.2002, p. 53-58.

Research output: Contribution to journalArticle

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