Furthermore, if a sample has been contaminated, scientists will know about it.
Ironically, given how supposedly useless carbon dating is claimed to be, Creation Ministries International rests part of their "101 Evidences" on carbon dating being a useful method for within several thousand years.
Atoms of carbon-14 are produced in the atmosphere by neutron bombardment of atoms of nitrogen-14.
The carbon-14 so produced decays by β-decay back into nitrogen-14.
This sharp-edged octahedral diamond crystal nestles in kimberlite, the rock that brought it to the earth’s surface. Not merely for their intrinsic beauty, but for the fundamental information locked within them.
Such crystals may preserve minerals from deep in the mantle and provide a record of temperature and pressure conditions there. Information that illuminates the earth’s early history and the planet’s structure at depths hundreds of kilometers beneath our feet.
We’ve traveled to the Carnegie Institution of Washington—more specifically the Institution’s Department of Terrestrial Magnetism—to document Dr.
Shirey’s work on determining the age of diamonds from many mines around the world by analyzing the tiny mineral inclusions preserved within them. Steven Shirey, a senior scientist at the Carnegie Institution of Washington’s Department of Terrestrial Magnetism, has a special interest in diamond—it’s his best method of glimpsing the unimaginable pressures and temperatures of the deep earth’s interior.
For these samples, other dating methods must be used.The evolutionary scientists themselves have never said that carbon-dating has been used on fossils; so why do people in the media and on the street think that they have? Carbon exists in a number of different types, called isotopes, which have different masses, depending on the number of neutrons in the nucleus.In carbon, the main isotopes have mass numbers of 12, 13 and 14 respectively.Living organisms are constantly incorporating this C-14 into their bodies along with other carbon isotopes.When the organisms die, they stop incorporating new C-14, and the old C-14 starts to decay back into N-14 by emitting beta particles.