In mid-2015 SUERC started work on commissioning a clumped isotope analytical system. Clumped isotopes are a relatively new isotopic analytical technique, first used in around 2005, and mainly used as a thermometric technique, measuring the temperature of formation of carbonates in everything from the skeletons of sea animals, terrestrial rocks, extra-terrestrial rocks like meteorites and esoteric samples like dinosaur teeth, by dissolving the carbonate in acid to produce CO2, and measuring it in a stable isotope mass spectrometer.