Radiometric dating age of the earth love triangle dating challenge game
Lord Kelvin and his allies used three kinds of argument.
The first of these referred to the rate of heat loss from the earth and the length of time it would have taken to form its solid crust.
Even less should we let that knowledge influence our judgment of the players, acting as they did in their own time, constrained by the concepts and data then available.
One outstanding feature of this drama is the role played by those who themselves were not, or not exclusively, geologists.
We, of course, know the final outcome, but we should not let that influence our appreciation of the story as it unfolds.
They assumed that current rates—of sediment deposition and of salt transport by rivers—were the same as historical rates, despite the evidence they had that our own age is one of atypically high geologic activity. The rock cycle, as we now know, is driven by plate tectonics, with sedimentary material vanishing into subduction zones.