<p>Table S30</p><p>Listing of mineral abbreviations, solution models and references used in the JUN92.bs and in the tcdb55c2 databases</p><p>Database JUN92.bs</p><p>Ab: albite An: anorthite And: andalusite AMPHx: Ca-amphibole solid solution; ideal, margules aQz: quartz Ath: anthophyllite BIOTITE: biotite solid solution; ideal bQz: quartz Br: brucite CHL4: chlorite solid solution; ideal Co: corundum CORD: cordierite solid solution; ideal Cs: coesite CTOID: chloritoid solid solution; ideal cZo: clinozoisite Do: dolomite Dsp: diaspore ep: epidote FAth: Fe-anthophyllite FSP2: feldspar solid solution; site, margules GARNET: garnet solid solution; site, margules Glc: glaucophane Hm: hematite Jd: jadeite Kln: kaolinite Ky: kyanite Lmt: laumontite Lw: lawsonite mcdt: Mg-chloritoid Mo: monticellite Mrg: margarite Mst: magnesite Mt: magnetite OLIVINEi: olivine solid solution; ideal OMPH: clinopyroxene solid solution; ideal, margules (Meyre et al. 1997) OPX: orthopyroxene solid solution; ideal (Hunziker 2003) Pg: paragonite Prh: prehnite Prl: pyrophyllite Py: pyrope Si: sillimanite SPIN: spinel solid solution; ideal, margules (Hunziker 2003) STAU: staurolite solid solution; site, margules (Nagel et al. 2002) Tc: talk 1 Wa: wairakite Wa: wairakite WHITE MICA: white mica solid solution; ideal, margules (Keller et al. 2005) yod: yoderite</p><p>Database tcdb55c2</p><p>BIO: biotite solid solution; site, margules (White et al. 2007) CHLR: chlorite solid solution; site, margules (Holland et al. 1998) CHTD: chloritoid solid solution; ideal, margules (White et al. 2000) coe: coesite CORD: cordierite solid solution; site (Holland and Powell 1998) CRPH: carpholite solid solution; ideal, margules (Kelsey et al. 2004) cz: clinozoisite FSP: feldspar solid solution; ideal, Margules (Baldwin et al. 2005) GARNET: garnet solid solution; site, Margules (White et al. 2007) gl: glaucophane ky: kyanite law: lawsonite LIQtc: silicate melt; ext, margules (White et al. 2007) mic: microcline OMPH: clinopyroxene solid solution; site, Margules (Holland and Powell 1996) OPX: orthopyroxene solid solution; site, Margules (Powell and Holland 1999) OSUM0: osumilite solid solution; site (Kelsey et al. 2004) parg: pargasite PHNG: white mica solid solution; site, margules (Coggon and Holland 2002) pre: prehnite pump: pumpellyite q: quartz sill: sillimanite TALK: talk solid solution; site (Holland and Powell 1998) tpz: hydroxi-topaz tr: tremolite wrk: wairakite zo: zoisite</p><p>References:</p><p>Baldwin JA, Powell R, Brown M, Moraes R, Fuck RA (2005) Modelling of mineral equilibria in ultrahigh- temperature metamorphic rocks from the Anapolis-Itaucu Complex, central Brazil. J Metam Geol 23:511-531</p><p>Coggon R, Holland TJB (2002) Mixing properties of phengitic micas and revised garnet-phengite thermobarometers. J Metam Geol 20:683-696</p><p>Holland TJB, Powell R (1996) Thermodynamics of order-disorder in minerals: II. Symmetric formalism applied to solid solutions. Am Mineral 81:1425-1437</p><p>Holland TJB, Powell R (1998) An internally consistent thermodynamic dataset for phases of petrological interest. J Metam Geol 16:309-343</p><p>2 Holland TJB, Baker JM, Powell R (1998) Mixing properties and activity-composition relationships of chlorites in the system MgO-FeO-Al2O3-SiO2-H2O. Eur J Mineral 10:395-406</p><p>Holland, T.J.B. Powell, R. (2003) Activity-composition relations for phases in petrological calculations: an asymmetric multicomponent formulation. Contrib Mineral Petrol 145:492-501</p><p>Hunziker P (2003) The stability of tri-octahedral Fe2+-Mg-Al chlorite: a combined experimental and theoretical study. PhD thesis Mineralog.-Petrogr. Inst. Uni Basel 137 pp</p><p>Keller LM, De Capitani C, Abart R (2005) A Quaternary Solution Model for white micas based on natural coexisting phengite–paragonite pairs. J Petrol 46:2129-2144</p><p>Kelsey DE, White RW, Holland TJB, Powell R (2004) Calculated phase equilibria in K2O-FeO-MgO-Al2O3-SiO2- H2O for sapphirine-quartz-bearing mineral assemblages. J Metam Geol 22:559-578</p><p>Meyre C, De Capitani C, Partzsch J (1997) A ternary solid solution model for omphacite and its application to geothermobarometry of eclogites from the Middle Adula nappe (Central Alps). J Metam Geol 15:687-700</p><p>Newton RC, Charlu TV, Kleppa OJ (1980) Thermochemistry of the high structural state plagioclases Geochim Cosmochim Acta 44:933-941</p><p>Nagel T, De Capitani C, Frey M (2002) Isograds and P-T evolution in the eastern Lepontine Alps (Graubunden, Switzerland). J Metam Geol 20:309-324</p><p>Powell R, Holland TJB (1999) Relating formulations of the thermodynamics of mineral solid solutions: activity modelling of pyroxenes, amphiboles and micas. Am Mineral 84:1-14</p><p>White RW, Powell R, Holland TJB, Worley BA (2000) The effect of TiO2 and Fe2O3 on metapelitic assemblages at greenschist and amphibolite facies conditions: mineral equilibria calculations in the system K2O-FeO-MgO-Al2O3- SiO2-H2O-TiO2-Fe2O3. J Metam Geol 18:497-511</p><p>White RW, Powell R, Holland TJB (2007) Progress relating to calculation of partial melting equilibria for metapelites. J Metam Geol 25:511-527</p><p>3</p>