The combined 14C and varve chronologies from Lake Suigetsu are used to calibrate the 14C time scale beyond the range of the absolute tree-ring calibration.Figure 2 shows an atmospheric 14C calibration for the complete 14C dating range (less than 45 ka). Atmospheric radiocarbon calibration for almost the complete 14C dating range (less than 45 ka cal BP) reconstructed from annually laiminated sediments from Lake Suigetsu (Japan)."In order to build up a calendar time scale (i.e., varve chronology) for the Suigetsu (SG) core, a total of 85 subsamples were taken in a section of SG extending from 10.43 to 30.34 m below the top sediment, each ca.25 cm in length, including a 1.5 cm overlap with neighbouring subsamples.Also the data seems to indicate no more that a 16.7 percent error due to deviation of C14 in the atmosphere for the past 40,000 years. plus or minus 627 years, a plus or minus 5.7 percent error range.The above Table 2 from Palaeo 122(1996)p.114 summarizes published data concerning one proposed event, the termination of the Younger Dryas period, and illustrates the range of dating errors from various sources including tree rings, lake varves, coral dating and the Greenland ice cores. Conclusion: The apparent close correlation of the dating results from multiple sources appears to be strong evidence for an earth much older than 10,000 years!At the extremes there is a range from 10,447 to 11,700 year B. And evidence that properly conducted C14 radiometric dating can approach reasonable accuracy, possibly within better than 10 percent.Also C14 dating affirms Scripture/Scripture affirms C14 dating!
By means of computer image analysis of digital pictures, we found that the much less distinct varves observed in some intervals during the deglaciation and Glacial could be determined only with a relatively large error.The age below 30.45 m depth is obtained by assuming a constant sedimentation in the Glacial (0.62 mm yr-1).In order to reconstruct the calendar time scale, we compared the Lake Suigetsu chronology with calibration curves obtained from recently revised absolute German oak and the floating German pine calibration curves (2).Figure PE-4 shows the best match between the tree-ring and the Lake Suigetsu chronologies, estimated by minimizing the weighted sum of squared differences between the 14C ages of macrofossils and the tree-ring calibration curve.The features in our data overlapping the tree-ring calibration agree very well, even for "wiggles" in the 14C calibration curves.
Using this match, we defined the absolute time scale for the Lake Suigetsu varves chronology.