Procedures have been developed for routine 40Ar/39Ar and (U-Th)/He analysis. We alternate between the two types of measurements throughout the year.
Incremental heating of metal encapsulated samples to produce age spectra is totally automated and acheived using a diode laser
Laser fusion is totally automated and is performed with a 10W CO2 laser. Single crystals (typically 300-600 µm in diameter) are placed in individual 1 mm diameter wells within a 11 row x 11 column tray.
Samples of zircon, monazite, rutile, or apatite may be incrementally heated for (U-Th)/He thermochronology.
Degassing of apatite and zircon single crystals is fully automated. Heating of samples encapsulated in flattened 1 mm Nb tubes occurs with a diode laser.
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