International Research Team Relies on CAMECA Atom Probe and Ion Mass Spectrometer to Determine Age and Geochemistry of 4.4-Billion-Year-Old Australian Zircon Crystal<br />
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MADISON, WI – An international team of geoscientists, utilizing advanced microanalytical instruments, has determined that a tiny fragment of zircon crystal from Western Australia is about 4.4 billion years old, making it the oldest confirmed intact piece of the Earth's crust. The crystal, not much larger than ...This story is related to the following:Mass Spectrometers | Geological Instruments