Cation ratio dating is used to date rocks that have a modified surface such as prehistoric rock carvings. It is not considered to be an accurate method of dating in some professional views. The Cation Ratio is determined by scraping the varnish from the carved surface back to the original rock surface and making a comparison of the two using a positively charged ion.
Fluorine Dating is mainly used to determine whether bones or other human remains were disposed of, or buried at the same time. Flourine could be found in the bones and if the bones did not contain any Flourine, you knew that they had been there for a long period of time.
Patina is the outtermost surface of an artifact. Patination is a technique involving the measuring of the patina on an artifact. Patination is used when several, similar artifacts are in the same area under the same conditions. Using this technique, you are able to determine the age of the artifacts, relative to the others, by comparing the thickness of the patina on them.
Rate of Accumulation is based on the geologic theory that the rock layers in the earth accumulated over time and that the deeper the layer, the older it is. Because of this, it would make sense that the deeper an artifact is in the earth, the older it is.