The science of geochronology is the prime tool used in the discipline of chronostratigraphy, which attempts to derive absolute age dates for all fossil assemblages and determine the geologic history of the earth and extraterrestrial bodies.
Accuracy of fossils and dating methods accuracy of fossils and dating methods the smithsonian institution's human origins program as for dating a fossil, it is a very educated guess (theory) based upon the available facts, tested and independently verified by other scientists in that field.
Here of some of the well-tested methods of dating used in the study of early humans: the dating rocks and fossils using geological methods article in nature's excellent scitable series of online articles in the nature education knowledge project 2. Paleoanthropological methods: dating fossils archaeologists will date any old thing (jim moore, ucsd) taphonomy: study of processes of fossilization (literally, laws of burial study of diagenetic processes acting on a dead animal's remains. Absolute dating is used to determine a precise age of a rock or fossil through radiometric dating methods this uses radioactive minerals that occur in rocks and fossils almost like a geological clock.
Radiometric dating or radioactive dating is a technique used to date materials such as rocks or carbon, in which trace radioactive impurities were selectively incorporated when they were formed the method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form. Fossils and relative dating fossils are important for working out the relative ages of sedimentary rocks throughout the history of life, different organisms have appeared, flourished and become extinct.
Our understanding of the shape and pattern of the history of life depends on the accuracy of fossils and dating methods some critics, particularly religious fundamentalists, argue that neither fossils nor dating can be trusted, and that their interpretations are better. Scientists use two kinds of dating techniques to work out the age of rocks and fossils the first method is called relative dating this considers the positions of the different rocks in sequence (in relation to each other) and the different types of fossil that are found in them. When someone mentions scientific dating methods, the first thing to come to mind for most people is carbon dating however, there are many methods that can be used to determine the age of the earth or other objects. Potassium-argon dating is a form of isotopic dating commonly used in archaeology scientists use the known natural decay rates for isotopes of potassium and argon to find the date of the rocks the radioactive isotope converts to a more stable isotope over time, in this case decaying from potassium to argon.