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.
Canada / NS / AkDm-? (Bunker Island) / GSC-71
- Lab number
- GSC-71
- Material dated
- marine shell; coquillage
- Taxa dated
- Littorina littorea (id. by A.H. Clarke)
- Locality
- Yarmouth County, Nova Scotia
- Map sheet
- 20 O/16
- Submitter
- A.H. Clarke
- Date submitted
- March 10, 0098
- Measured Age
- 100 ± 60
- Normalized Age
- 530 ± 60
- δ13C (per mil)
- 1.7
- Significance
- culture?
- Context
- archaeological deposit, but exact provenience unknown
- Associated taxa
- Mollusca: Littorina littorea
- Additional information
- 33.0 g, dry, treated with an acid leach to remove 20% of the outer material.
- Comments
- AkDm-no #, Yarmouth: GSC-71 is identified as an archaeological sample in a comment concerning GSC-72, a modern age measured on a collection of live periwinkles (Littorina littorea) from Indian Point, at St. Margaret's Bay, Nova Scotia. GSC-72 was "submitted by A.H. Clarke to check on the reliability of the date for archaeological material (GSC-71), that is, to see if living specimens would produce modern dates (e.g., were not ingesting and depositing fossil (old) carbon" (McNeely, 1989: 9). The actual measurement of GSC-72 (102.2% std) shows the influence of bomb testing, an effect that defeats Clarke's purpose (McNeely, p.c. 1998). A comment by Clarke claims that GSC-71, "the original archaeological age determination for Littorina littorea" (ibid.) had been previously published in Clarke and Erskine (1961). In fact, that paper reports only I-217, a date on Littorina shells from the Reid site (BdCx-5), collected by Erskine in 1960. GSC-71 was collected from some other site in 1910.