Table 1.
Ring count and corresponding radiocarbon date range (±1σ).
| Radius | Sample | Ring no. | Range expected | 14C Cal. date | Likely range |
|---|---|---|---|---|---|
| number | (from bark) | from ring count | measured (± 1σ) | (year CE) | |
| A | A1 | 77 | 1920–1930 | 1668 (12.7%) 1682 | 1936–1952 |
| 1736 (19.3%) 1759 | |||||
| 1760 (19.0%) 1781 | |||||
| 1797 (6.1%) 1805 | |||||
| 1936 (9.9%) 1947 | |||||
| 1951 (1.2%) 1952 | |||||
| A2 | 26–29 | 1970–1980 | 1962 (11.3%) 1962 | 1962–1976 | |
| 1962 (11.3%) 1962 | |||||
| 1974 (24.9%) 1975 | |||||
| 1975 (32.0%) 1976 | |||||
| A3 | 1 | 2000–2009 | 2002 (68.2%) 2004 | 2002–2004 | |
| B | B1 | 60 | 1940–1950 | 1698 (19.8%) 1722 | 1879–1916 |
| 1816 (13.9%) 1834 | |||||
| 1879 (34.3%) 1916 | |||||
| 1954 (0.2%) 1955 | |||||
| B2 | 36 | 1960–1970 | 1699 (2.6%) 1703 | 1954–1955 | |
| 1706 (12.1%) 1720 | |||||
| 1818 (11.4%) 1833 | |||||
| 1880 (41.3%) 1915 | |||||
| 1954 (0.7%) 1955 | |||||
| B3 | 1 | 2000–2009 | 1957 (2.6%) 1957 | 2003–2005 | |
| 2003 (5.6%) 2003 | |||||
| 2003 (59.9%) 2005 | |||||
| C | C1 | – | – | 1700 (0.7%) 1701 | 1881–1915 |
| 1707 (12.0%) 1719 | |||||
| 1819 (2.5%) 1823 | |||||
| 1825 (6.6%) 1833 | |||||
| 1881 (45.7%) 1915 | |||||
| 1954 (0.7%) 1955 | |||||
| C2 | – | – | 1892 (64.7%) 1907 | 1954-1955 | |
| 1954 (3.5%) 1955 | |||||
| C3 | 1 | – | 2002 (65.2%) 2004 | 2002–2004 | |
| 2004 (3.0%) 2004 |
For radius C, the ages are estimated based on the chronological order of the samples. Bold values indicate the most likely dates for samples from among the possible calibrated radiocarbon dates presented in column 5, taking into consideration the putative ring count.