CARD fuzzes location data for public visitors to the database. Accessing CARD's full capabilities requires an account available only to researchers at accredited institutions.
Lab number
Material dated
charcoal; charbon de bois
north of Point Roberts, ca. 2 m asl, Strait of Georgia, British Columbia
Map sheet
92 G/03
Date submitted
March 8, 0099
Date uploaded
February 14, 2020
Normalized Age
3850 ± 60
St. Mungo
Stratigraphic component
Zone D
Zone D, hearth feature D10, Trench D1, unit D7, in differentiated mudflow (Layer DG) 20 cm above beach sand (Layer DH)
DgRs-2, Tsawwassen: The excavaters distinguish seven zones (A-G), each with its own stratigraphic and cultural sequence. R. Brolly (p.c. 1999) examined the reports from the Beta laboratory and confirmed that the dates on human bones are uncorrected ages. These must be normalized by adding at least 100 years to the mean, but they cannot be precisely corrected for isotopic fractionation in the absence of measured C-13 ratios.