One of the leading scientists in his field, Dr Alan Hogg, of the Waikato Radiocarbon Laboratory, is the lead author of a paper that provides a definitive calendar age for the powerful Taupo eruption that occurred about 1,800 years ago.Taupo volcano in central North Island, New Zealand, is the most frequently active and productive rhyolite volcano on Earth.When Rutherford announced his findings it soon became clear that Earth is millions of years old.
A mass spectrometer is an instrument that uses a series of magnets to bend a beam of ions and then physically count how many there are, so with AMS radiocarbon dating, we can measure a carbon-12, 13 and 14 beam, and we measure the ratio of 14 to 13, and from that, we can tell how much C-14 is in the sample.
So the most important things about AMS radiocarbon dating as opposed to conventional is that the sample size is much, much smaller.
Previously suggested calendar ages for the eruption included AD 181 (ice core records) and AD 186 (ancient Roman and Chinese historical records) have been shown to be incorrect.
Dr Hogg used Hogg A, Lowe D, Palmer J, Boswijk G, Ramsey C. Definitive high-precision calendar date for the Taupo eruption derived by wiggle-match dating using a New Zealand kauri-derived calibration curve.
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More information about [email protected] The Industrial Energy Efficiency Division of the Waikato Energy Research Centre has a number of facilities and equipment available for both internal and external research purposes, including (but not limited to): The Waikato Mass Spectrometry Facility operates and maintains the Faculty's range of high-performance mass spectrometers.
Accelerator mass spectrometry is not dependent upon the radioactive decay.
What you’re doing is measuring all of the carbon isotopes in the sample – the 12, 13 and 14 – the accelerator operates like a giant mass spectrometer.
Dr Christine Prior is Team Leader of the Rafter Radiocarbon Laboratory at GNS Science.
In this video, she compares conventional and accelerator mass spectrometry (AMS) radiocarbon dating.
The original atom is referred to as the parent and the following decay products are referred to as the daughter.