Scientists assumed that each gray and white “couplet,” or varve, represents one year, with the white diatom layer forming during the spring and the gray layer forming during the fall/winter. Actually, the original researchers only reported 29,100 varves, although later researchers claim to have counted more than 50,000.
Therefore, the Ice Age provides the opportunity for thousands of non-annual diatom blooms to occur in a few centuries, plausibly explaining the white diatom layers observed in the Lake Suigetsu sediments. D&W converted these radiocarbon ages into what they called “measured carbon-14” and then plotted those values against tree ring and varve calendar ages in their Figure 7 (our Figure 2).
D&W argued that since the yellow dots fell on a nearly straight line, this proved the radiocarbon ages were true calendar ages, at least for the last 50,000 years or so.
However, creation scientists can reasonably address their challenges.
Their first objection, the existence of salt deposits within the sedimentary rock record, can plausibly be answered by the extrusion of supersaturated brines from within the earth’s interior as the “fountains of the great deep were broken up” during the Genesis Flood (Genesis ).
The easiest way to see this is to simply plot the radiocarbon ages against the calendar ages—the ages that secular scientists assigned to the Lake Suigetsu varves (Figure 3).
If the radiocarbon ages really do equal calendar ages, then the yellow dots should fall on the red line—but they don’t.When they encountered this problem, they assumed a constant sedimentation rate to “fill in” the gaps.Therefore, the true number of counted varves was much less than the 50,000 claimed by D&W, probably between 15,000 and 25,000. Under the right conditions, tens of thousands of varve-like layering patterns form in the 4,500 years or so since the Genesis Flood.The Flood/Ice Age model predicts an enormous amount of closely spaced volcanic activity in the centuries after the Flood, as well as extremely dry, windy conditions at the end of the Ice Age.This is important, because volcanic ash and dust are rich in silica, the main ingredient diatoms use when constructing their skeletons. Scientists radiocarbon-dated leaf, branch, and insect fossils within the Lake Suigetsu sediments.Also, it should have been obvious, even from just the popular science literature, that radiocarbon ages generally do not equal varve ages.