Single-crystal thermometric calibration of Fe-Mg order-disorder in pigeonites

• Main Authors: PASQUAL, DARIA, MOLIN, GIANMARIO, TRIBAUDINO M.
• Other Authors: Pasqual, Daria, Molin, Gianmario, Tribaudino, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: MINERALOGICAL SOC AMER, 1015 EIGHTEENTH ST, NW SUITE 601, WASHINGTON, DC 20036 USA 2000
• Subjects: ORTHO-PYROXENE; THERMAL HISTORY; ORTHOPYROXENES; TEMPERATURE; CHEMISTRY; THERMODYNAMICS; CLINOPYROXENE; METEORITE; Antarctic; Pecora Escarpment; Antarc*
• Online Access: http://hdl.handle.net/11577/2461457

The single-crystal X-lay technique was used to calibrate a new intracrystalline geothermometer based on equilibrium Mg-Fe* fractionation (Fe* = Fe2+ + Mn2+) between M1 and M2 sites of natural P2(1)/c pigeonite, Suitable crystals free of exsolution textures and sharp diffraction maxima were selected...