Ancient Maize Map

Information

ID: 570
Other ID: CAMS-94414
Type: MicroSample
Subtype: pollen
Site: Crawford Lake
Depositional context: lake

This date is on a leaf that was recovered at a depth of 62.41 cm below the bottom of the lake bed, and closely associated with the earliest Zea pollen collected in the core column, which occurred at 62.2 cm (Ekdahl et al. 2004:Table DR1). (Note: The leaf sample, labeled CL-288, was split in two to produce two separate dates. This half of the sample was given the project ID CL-288#).

Radiocarbon Date

Lab number: CAMS-94414
Dating method: AMS
Directly dated: No
Dated material: leaf or twig
Contaminated?: No
Lower cal BP (years): 730
Median cal BP (years): 672
Upper cal BP (years): 564
Uncal BP (years): 720
± 1 σ (years): 40
δ13C:

Attached Files

References Cited

Ekdahl, Erik J., Jane L. Teranes, Thomas P. Guilderson, Charles L. Turton, John H. McAndrews, Chad A. Wittkop and Eugene F. Stoermer
2004 Prehistorical Record of Cultural Eutrophication from Crawford Lake, Canada. Geology 32(9):745-748.

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