Mt etna carbon dating
These ratios can be the result of radioactive decay, parent and daughter isotope entering or leaving the system, or the original isotopic make up of the system.
How this relates to the age of the rock is all theory.
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Now in all fairness Ar-Ar dating can get the right age for a sample of known age, but it can also date samples as way too old, but without a known date there is no way of knowing when it is too old.
The above illustration is the U is the final daughter isotope and the one used in radiometric dating.
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Volcanic Contributions to the. Global Carbon Cycle. Vicky Hards. The National Grid and other. Ordnance Survey data are used with the permission of the. Controller of. Mount Etna, one of the if not the world's. Etna has one of the world's longest documented historical records, dating back to the 2nd millenium. BC.… continue reading »
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Aug 24, 2014. Volcanic eruption, When the rock formed, Date by radiometric dating. Mt Etna basalt, Sicily, 122 BC, 170,000–330,000 years old. Mt Etna basalt, Sicily, AD 1972, 210,000–490,000 years old. Mt St. Helens, Washington, AD 1980, 300,000–400,000 years old. Hualalai basalt, Hawaii, AD 1800–1801.… continue reading »