Start Geology dating in austarlia

Geology dating in austarlia

This document is partly based on a prior posting composed in reply to Ted Holden.

An early summary of them is found in Charles Lyell's .

In no way are they meant to imply there are no exceptions.

They are the "initial working hypotheses" to be tested further by data.

In the last 200 or more years of their application, they are valid, but geologists do not assume they are.

These are often characterised as the norm, rather than the exception.

I thought it would be useful to present an example where the geology is simple, and unsurprisingly, the method does work well, to show the quality of data that would have to be invalidated before a major revision of the geologic time scale could be accepted by conventional scientists.

As an example of how they are used, radiometric dates from geologically simple, fossiliferous Cretaceous rocks in western North America are compared to the geological time scale.