Radioactivity in geologic dating
Steno developed a set of Laws (Steno's Laws) to help explain his method of inferring the ages of geological structures.These laws are a set of hypotheses that the scientific community accepts as a starting basis without absolute proof.
In addition to the "relative" uncertainty that the geological features of an area have retained their historical integrity, there is another problem associated with relative dating.While this may sound questionable at first, keep in mind that we also accept the Law of Gravity with out direct proof.Visit the following site and read about each of Steno's laws (principles).Geologists do not use carbon-based radiometric dating to determine the age of rocks.
Carbon dating only works for objects that are younger than about 50,000 years, and most rocks of interest are older than that.
To obtain further practice with the concepts of Steno's laws and geologic dating, work through the Understanding Geological Time section of this assignment.