Ancient Maize Map

Information

ID: 561
Other ID: Tx-105
Type: MacroSample
Subtype: maize and wood charcoal
Site: Davis (41CE19)
Depositional context: pit
Condition: charred
Pottery type: not applicable
Vessel form: not applicable

Charred maize (likely cobs) mixed with wood charcoal was recovered from a pit in Feature 31, Premound A structure (Story and Valastro 1977: Table 1). This sample's age reported as: 1120±90, but is corrected for fractionation in this database using the formula from Reimer, Brown and Reimer (2004). In this a δ13C value of -18.0 was used, midway between average wood and maize values. We exclude this sample as possibly contaminated since the wood charcoal could be much older than the maize with which it is mixed.

Radiocarbon Date

Lab number: Tx-105
Dating method: conventional
Directly dated: Yes
Dated material: charred maize
Contaminated?: Yes
Lower cal BP (years): 1305
Median cal BP (years): 1154
Upper cal BP (years): 961
Uncal BP (years): 1235
± 1 σ (years): 95
δ13C:

Attached Files

References Cited

Story, Dee Ann and S. Valastro, Jr.
1977 Radiocarbon Dating and the George C. Davis Site, Texas. Journal of Field Archaeology 4(1):63-89.

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