thermobarometer

thermobarometer

(ˌθɜːməʊbəˈrɒmɪtə)
n
(Chemistry) an apparatus that provides an accurate measurement of pressure by observation of the change in the boiling point of a fluid
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These textural and spatial relationships of Ti- and Zr-bearing phases are vital to appropriately applying accessory phase thermobarometers (e.g., TitaniQ, Zr-in-titanite) and geochronometers, which will aid in the reconstruction of PTt paths for this region of the Southern Appalachians.