Shortcomings of radiocarbon dating
However, the first three arguments are dealt with rather easily.Their first objection, the existence of enormous salt deposits within the sedimentary rock "record," can plausibly be explained by large amounts of salts contained in hot, supersaturated brines extruded from the earth's interior during the Flood.There is simply no hint anywhere in the Bible that God used an evolutionary process to create the universe or life, nor is there any hint of long ages in the Bible.
However, diatoms make use of silica to construct their skeletons, and the amount of silica in lake environments can be increased by wind-blown dust and volcanic eruptions.
We find evidence of large numbers of volcanic eruptions in the post-Flood Ice Age, as well as intense dust storms, particularly toward the Ice Age's end.
These Ice Age eruptions and dust storms would have stimulated large numbers of diatom blooms, plausibly allowing the formation of thousands of these diatom layers during the Ice Age, which probably lasted multiple centuries.
Upon coming in contact with cold ocean water, these salts would have precipitated out, forming large, exceptionally pure, salt deposits. But Davidson and Wolgemuth included a "twist" on their argument: They claimed that radiocarbon dating of leaf, branch, and insect fossils within the lake sediments showed very good agreement between the radiocarbon ages for these fossils and the ages one would expect based on a simple counting of the varve layers.
This good agreement, Davidson and Wolgemuth claimed, proved that most of the layers did indeed represent annual events, thereby proving that the earth must be at least 50,000 years old.