Ancient Maize Map

Information

ID: 513
Other ID: QL-1342
Type: MicroSample
Subtype: pollen
Site: Lake Pátzcuaro
Depositional context: lake

Zea pollen grains, presumably maize because of their large size, first appear in a stratigraphic core at 865 cm below the lake surface (approximately 220 cm below the lake bed) (Watts and Bradbury 1982:60-61). No Zea pollen was found deeper than this level. A radiocarbon sample (QL-1342) was taken just below this depth, between 878 and 881 cm, so it is slightly older than the earliest maize pollen.

Radiocarbon Date

Lab number: QL-1342
Dating method: conventional
Directly dated: No
Dated material:
Contaminated?: No
Lower cal BP (years): 4225
Median cal BP (years): 3964
Upper cal BP (years): 3720
Uncal BP (years): 3640
± 1 σ (years): 80
δ13C:

Attached Files

References Cited

Watts, W. A. and J. Platt Bradbury
1982 Paleoecological Studies at Lake Patzcuaro on the West-Central Mexican Plateau and at Chalco in the Basin of Mexico. Quaternary Research 17:56-70.

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