Dating different fossil technique

Three geologists have reported what they called the first "successful" direct dating of dinosaur bone.Will this new radioisotope dating (or radiodating) technique solve the problems that plagued older dating methods?If history is anything to go by, then the answer is no.The process generally used to date a fossil is circuitous and subject to differing interpretations.

dating different fossil technique-25dating different fossil technique-77dating different fossil technique-27dating different fossil technique-36

This technique is widely used on recent artifacts, but educators and students alike should note that this technique will not work on older fossils (like those of the dinosaurs alleged to be millions of years old).It has involved tracing the related sedimentary rock layer horizontally from the place where the fossil in question was found to a place where it is underlain or overlain (or both) by igneous rock.Igneous rock layers can supposedly be directly dated, so sedimentary layers sandwiched between them are interpreted to have been deposited in between the "ages" assigned to the igneous rocks.Paleontology seeks to map out how life evolved across geologic time.A substantial hurdle is the difficulty of working out fossil ages.If a fossil is found between two layers of rock whose ages are known, the fossil's age is thought to be between those two known ages.

944

Leave a Reply