Half lives used carbon dating fossils rocks
Once the tree dies, it ceases to take in new carbon, and any C-14 present begins to decay.The changing ratio of C-12 to C-14 indicates the length of time since the tree stopped absorbing carbon, i.e., the time of its death.Scientists find the ratio of parent isotope to daughter isotope.Despite seeming like a relatively stable place, the Earth's surface has changed dramatically over the past 4.6 billion years.Obviously, if half the C-14 decays in 5,730 years, and half more decays in another 5,730 years, by ten half-lives (57,300 years) there would be essentially no C-14 left.Mike Riddle has put together a brilliant slideshow examining the truths and misnomers of dating methods currently used by scientists eager to propogate their evolutionary agenda. Are there any factors that can affect the amount of carbon in the atmosphere?The highest rate of carbon-14 production takes place at altitudes of 9 to 15 km (30,000 to 50,000 ft).At high geomagnetic latitudes, the carbon-14 spreads evenly throughout the atmosphere and reacts with oxygen to form carbon dioxide.
A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.These samples are carefully cataloged and analyzed with a mass spectrometer.The mass spectrometer is able to give information about the type and amount of isotopes found in the rock.This can be done because scientists normally know how much of the isotope should exist in the fossil when it was first created Depending on the estimated age of the fossil, a specific isotope can be traced and measured.Perhaps no concept in science is as misunderstood as "carbon dating." Almost everyone thinks carbon dating speaks of millions or billions of years.