Radiometric dating corals
I have tried here to answer some of the frequently asked questions that I receive from students via email, as well as providing some basic information about scientific dating methods.
"Everything which has come down to us from heathendom is wrapped in a thick fog; it belongs to a space of time we cannot measure.
Radiocarbon dates come from organic matter that contain the element carbon.
Ice cores, pollen, wood, hair, bone, shell, bird egg shell, and coral are some of the things datable by this technology which depends on measuring the atomic decay rate of carbon isotopes.
Scientists are still finding a few new sites where they live today but they were quite abundant on earth some 2 billion years ago, and perhaps earlier.
Geologists credit stromatolite activity for creating the earth's first atmospheric oxygen and making animal life possible.
They thought that sites which had the same kinds of pots and tools would be the same age.Organisms usually need to be covered by mud, sand, tar or some other sediment as soon as possible or frozen or dessicated (dried out) for fossilization to occur.Fossils, by definition, are the remains or traces of organisms that lived at least 10,000 years ago.Within three weeks, there will be nothing left but a few small bones." A fossil normally preserves only a portion of an organism, usually that portion that was partially mineralized during life, such as bones and teeth.Trace fossils are the marks left by a living organism, such as feces, footprints or impressions of feathers or leaves.
During the period of a plant's life, the plant is taking in carbon dioxide through photosynthesis, which is how the plant makes energy and grows.