Mount etna carbon dating
The C14 contained in the plant or in the bone under consideration starts decaying with a half-live value of 6,000 years – at which time therefore only one half of the C14-particles will still be present.The artificial supply of CO2 from exhaust-emissions changes the relation between C12 and C14 in the atmosphere: the emissions stem from coal, gas or oil, which was formed millions of years ago, they do not contain any C14, as the isotope which would have been originally present would have completely decayed after a few tens of thousand years.Mauna Loa continues to grow and provide lava rock for Hawaii, although its rate of growth has slowed in the last 100,000 years.Mauna Loa is categorized as a shield volcano, with mountain slopes built up by numerous fluid lava flows.
About 98 percent of the volcano's surface is covered with basaltic rock lava flows that are radio-carbon dated at less than 10,000 years old.
The method establishes the amount of C14, a radioactive variant of carbon, in wood, bones or fabric. Its quantity in relation to the stable, much more frequent carbon-isotope C12 shows therefore how old an object is.