Ancient Maize Map

Information

ID: 569
Other ID: CAMS-94413
Type: MicroSample
Subtype: pollen
Site: Crawford Lake
Depositional context: lake

This date is on a leaf (labeled CL-288) 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 was split in two to produce two separate dates. See CAMS-94414 for the date obtained on the other half that was labeled CL-288#).

Radiocarbon Date

Lab number: CAMS-94413
Dating method: AMS
Directly dated: No
Dated material: leaf or twig
Contaminated?: No
Lower cal BP (years): 724
Median cal BP (years): 663
Upper cal BP (years): 561
Uncal BP (years): 705
± 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.

Comments

No comments yet