Radiometric method for dating rocks
The example used here contrasts sharply with the way conventional scientific dating methods are characterized by some critics (for example, refer to discussion in "Common Creationist Criticisms of Mainstream Dating Methods" in the Age of the Earth FAQ and Isochron Dating FAQ).
A common form of criticism is to cite geologically complicated situations where the application of radiometric dating is very challenging.
Clearly, Sedimentary Rocks A were deposited and deformed before the Volcanic Dyke intruded them.
These were then eroded and Sedimentary Rocks B were deposited.
For example, a geologist may examine a cutting where the rocks appear as shown in Figure 1.
His geological cross-section may look something like Figure 2.The Geological Timescale divides the Earth’s history into several periods of differing lengths of time.There are different ways that scientists can measure geological time.We will deal with carbon dating first and then with the other dating methods.Carbon has unique properties that are essential for life on Earth.