Why should the percentage of lead to uranium in zircon crystals (the key to ordinary uranium-lead, radiometric dating) depend on which geologic period they are found in?If most of the geologic column were created during Noah's flood, would it really matter whether a zircon crystal was found in Cambrian strata or Cretaceous strata, in Jurassic strata or Tertiary strata?What does the Jurassic strata have that the Tertiary strata do not? Neutrinos penetrate the earth so easily that they would affect all strata more or less equally, to the extent that they affect anything at all.
Radiometric dating would later confirm the relative ages of the strata and tie them to absolute dates.
Then the paleontologists use the geologists' dates as evidence for the age of the fossils! The relative order of the strata was first determined by the principles of stratification. Beagle, a very strong Bible believer, made it a point to have a copy of Lyell's book for the ship's library.
(The principle of superposition was recognized as early as 1669 by Steno.) Reverend Benjamin Richardson and Reverend Joseph Townsend were a couple of early geologists involved in this work. Obviously, even Lyell was not pushing evolution at the time.
One can hardly accuse these pioneers of evolutionary prejudice.
Nearly a half-century would pass before Darwin's book, The Origin of Species, was published!