Prentice Hall. Figure 8. Radiometric Dating and the Geological Time Scale: Examples of Dating Methods for Igneous Rocks. There are a number of misconceptions that seem especially prevalent among Christians. Well over forty different radiometric dating methods are in use, and a number of non-radiogenic methods not even mentioned here. Amino acid racemisation Archaeomagnetic dating Dendrochronology Ice core Incremental dating Lichenometry Paleomagnetism Radiometric dating Radiocarbon Uranium—lead Potassium—argon Tephrochronology Luminescence dating Thermoluminescence dating.
However, ESR dating can be used over longer time periods, up to two million years, and works best on carbonates, such as in coral reefs and cave deposits.
In nearly all of the dating methods, except potassium-argon and the associated argon-argon method, there is always some amount of the daughter product already in the rock when it cools. Davis This is well-established for most isotopic systems. The geomagnetic polarity time scale was calibrated largely using K—Ar dating. Wiester, John The Genesis Connection.