Amp-TB2: An Updated Model for Calcic Amphibole Thermobarometry
نویسندگان
چکیده
Amphibole (Amp) plays a crucial role in the study of several earth and planetary processes. One its most common applications is thermobarometry, especially for volcanic-magmatic systems. However, many thermobarometers require input melt composition, which not always available volcanic products (e.g., partially crystallized melts or devitrified glasses), show rather high errors characterizing depth magma chambers. In this work, new version amphibole thermobarometry based on selection recently published high-quality experimental data reported. It valid Mg-rich calcic amphiboles magmatic equilibrium with calc-alkaline alkaline across wide P-T range (up to 2200 MPa 1130 °C) presents advantage being single-phase model relatively low (P ±12%, T ±22 °C, logfO2 ±0.3, H2O ±14%). A user-friendly spreadsheet (Amp-TB2.xlsx) calculating physico-chemical parameters from composition natural also gives warnings whenever incorrect diverges that calibration includes diagrams an easy graphical representation results.
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ژورنال
عنوان ژورنال: Minerals
سال: 2021
ISSN: ['2075-163X']
DOI: https://doi.org/10.3390/min11030324