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There are stalactites and stalagmites in caves and other rock formations that scientists claim took millions of years to develop.
Stalactites are formed by the deposition of calcium carbonate and other minerals, which is precipitated from mineralized water solutions.
They have changed their minds about the Grand Canyon many times already.
National Geographic Kids, March 2003; The Grand Canyon is just a baby!
We will here discuss only its relationship to radioactive dating methods and learn that there are no relationships!
In the chapter on Fossils, we will discover that dating rocks by their fossils is based on circular reasoning:  Each strata is a certain age because of certain key fossils in it;  the fossils in the strata are a certain age because evolutionary theory says they should be that certain age, and also because they are in rock strata which is that same age.
In recent years, forensic scientists have started to apply carbon-14 dating to cases in which law enforcement agencies hope to find out the age of a skeleton or other unidentified human remains.