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QUILF Program

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Journal Article

Effect of Ca content and SiO 2 activity on augite + olivine equilibria

Paula M. Davidson, Donald H. Lindsley
Published: 01 December 1994
American Mineralogist (1994) 79 (11-12): 1123–1124.
... it for the Davidson and Lindsley (1989) model that has been incorporated into the QUILF program (Andersen et al., 1993; Lindsley and Frost, 1992; Frost and Lindsley, 1992). Copyright © 1994 by the Mineralogical Society of America 1994 ...
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( a ) Positions of equilibria 6 and 10 in T - a SiO 2 space for unit ac...

( a ) Positions of equilibria 6 and 10 in T - a SiO 2 space for unit ac...

Published: 01 January 2011
= 0.8 and a Ab = 0.8. Silica activities from equilibrium 6 were calculated with Unitherm, and the AUNIlF surfaces were calculated with the QUIlF program. reference reactions of QUIlF and AUNIlF are bold; all reaction curves were calculated at P = 1 bar.
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Ternary plot (adapted from Lindsley 1983 ) showing host Cpx, lamella Opx, ...

Ternary plot (adapted from Lindsley 1983 ) showing host Cpx, lamella Opx, ...

Published: 01 August 2022
Figure 11. Ternary plot (adapted from Lindsley 1983 ) showing host Cpx, lamella Opx, and recombined “proto-Cpx” compositions for two grains from S98-14 and the subsequent calculated temperatures. Pyroxene end-member compositions were calculated using the QUILF program and temperatures calculated
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Influence of lamellar width on apparent CaO concentration and subsequent tw...

Influence of lamellar width on apparent CaO concentration and subsequent tw...

Published: 01 August 2022
Figure 5. Influence of lamellar width on apparent CaO concentration and subsequent two pyroxene (2-pyx) temperature using the QUILF program, for a (Ca free) Opx exsolution lamella in a Cpx grain. Modeled using PENELOPE and spectrometers at 45° to the lamellar orientation and 45° take-off angle
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Pyroxene quadrilateral showing the compositions of pyroxenes from Black Blu...

Pyroxene quadrilateral showing the compositions of pyroxenes from Black Blu...

Published: 01 February 2005
at high temperatures. Temperatures are calculated from the QUILF program of Andersen et al. (1993) .
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Estimated paleo-oxygen fugacity for some of the highly oxidized granulite f...

Estimated paleo-oxygen fugacity for some of the highly oxidized granulite f...

Published: 01 April 2011
F igure 16. Estimated paleo-oxygen fugacity for some of the highly oxidized granulite facies terranes, based on compositions of coexisting Fe-Ti oxide minerals from individual rocks, calculated with the QUILF program of Andersen et al. (1993) with data of Harlov (1992) from Bamble, south
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Δlog f (O 2 ) (relative to FMQ) versus fictive X Fe Opx diagram show...

Δlog f (O 2 ) (relative to FMQ) versus fictive X Fe Opx diagram show...

Published: 01 August 2010
followed during the assimilation of silica by a rock with olivine + orthopyroxene + magnetite + ilmenite in which pyroxene is far more abundant than magnetite. Gray line shows trajectory followed if the modal abundance of magnetite or pyroxene is 0.20. Calculations from the QUILF program of Anderson et al
Journal Article

Fe-Ti oxide-silicate (QUIlF-type) equilibria in feldspathoid-bearing systems

Julian Schilling, B. Ronald Frost, Michael A.W. Marks, Thomas Wenzel, Gregor Markl
Published: 01 January 2011
American Mineralogist (2011) 96 (1): 100–110.
DOI: https://doi.org/10.2138/am.2011.3596
... = 0.8 and a Ab = 0.8. Silica activities from equilibrium 6 were calculated with Unitherm, and the AUNIlF surfaces were calculated with the QUIlF program. reference reactions of QUIlF and AUNIlF are bold; all reaction curves were calculated at P = 1 bar. ...
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Assemblages with titanite (CaTiOSiO 4 ), Ca-Mg-Fe olivine and pyroxenes, Fe-Mg-Ti oxides, and quartz: Part I. Theory

Dimitrios Xirouchakis, Donald H. Lindsley, David J. Andersen
Published: 01 March 2001
American Mineralogist (2001) 86 (3): 247–253.
DOI: https://doi.org/10.2138/am-2001-2-306
...) consistent with the thermodynamic data in the program QUILF. In addition, we use a modified version of the program to calibrate equilibria among titanite (CaTiOSiO 4 ), Fe-Mg-Ti ilmenite and spinel, Ca-Mg-Fe pyroxenes and olivine, and quartz. Calculations at 1 and 3 kbar, and 650, 850, and 1100 °C...
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Assemblages with titanite (CaTiOSiO 4 ), Ca-Mg-Fe olivine and pyroxenes, Fe-Mg-Ti oxides, and quartz: Part II. Application

Dimitrios Xirouchakis, Donald H. Lindsley, B. Ronald Frost
Published: 01 March 2001
American Mineralogist (2001) 86 (3): 254–264.
DOI: https://doi.org/10.2138/am-2001-2-307
... in volcanic rocks. We have used a modified version of the program QUILF that includes our thermodynamic data for titanite and appropriate titanite-bearing assemblages to estimate the equilibrium crystallization conditions of samples from: (1) a tonalite from the Myoken-Zan granitic complex in Japan; (2...
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Oxygen fugacity of martian basalts from electron microprobe oxygen and TEM-EELS analyses of Fe-Ti oxides

Christopher D.K. Herd, James J. Papike, Adrian J. Brearley
Published: 01 September 2001
American Mineralogist (2001) 86 (9): 1015–1024.
DOI: https://doi.org/10.2138/am-2001-8-908
... 47.48 39.15 61.14 Fe 2 O 3 (ns) 15.17 13.57 7.19 14.37 3.19 28.74 11.98 Fe 3+ /∑Fe (ns) 0.108 0.098 0.051 0.102 0.029 0.248 0.081 Fe 3+ /∑Fe (EELS) – 0.21 – – – – – Oxygen fugacity is calculated using the models of Ghiorso and Sack (1991a) and the QUILF program...
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Thermometers and Thermobarometers in Granitic Systems

J. Lawford Anderson, Andrew P. Barth, Joseph L. Wooden, Frank Mazdab
Published: 01 January 2008
Reviews in Mineralogy and Geochemistry (2008) 69 (1): 121–142.
DOI: https://doi.org/10.2138/rmg.2008.69.4
... (2007) on constraints on the stability of Al end members of biotite, but such is beyond the scope of this contribution. The computational program and related data set termed “QUILF” for the reaction quartz + ulvospinel = ilmenite + fayalite ( Andersen et al. 1993 ) continues to be utilized, e.g...
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F ig . 8. Temperature-log oxygen fugacity diagram for Miocene igneous rocks...

F ig . 8. Temperature-log oxygen fugacity diagram for Miocene igneous rocks...

Published: 01 December 2001
using the computer program QUILF ( Andersen et al., 1991 ). All mineral pairs checked for possible equilibrium using Mg/Mn partitioning relationships ( Bacon and Hirschmann, 1988 ). Data for McDermitt caldera complex from Conrad (1984) . Oxygen buffer curves: FMQ = fayalite-magnetite-quartz, HM
Journal Article

VARIATION IN MINERALOGY, TEMPERATURE, AND OXYGEN FUGACITY IN A SUITE OF STRONGLY PERALKALINE LAVAS AND TUFFS, PANTELLERIA, ITALY

John Charles White, Minghua Ren, Don F. Parker
Published: 01 August 2005
The Canadian Mineralogist (2005) 43 (4): 1331–1347.
DOI: https://doi.org/10.2113/gscanmin.43.4.1331
... (with or without augite or quartz) using QUIlF equilibria ( Frost et al. 1988 , Lindsley & Frost 1992 , Frost & Lindsley 1992 ). The program quilf 95, version 6.42 ( Andersen et al. 1993 ) for Microsoft Windows 95 was used to evaluate equilibrium and calculate T and f (O 2 ); the results...
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CHEMICAL AND ISOTOPIC EVOLUTION OF THE ANORTHOSITIC PLUTONS OF THE LARAMIE ANORTHOSITE COMPLEX: EXPLANATIONS FOR VARIATIONS IN SILICA ACTIVITY AND OXYGEN FUGACITY OF MASSIF ANORTHOSITES

Carol D. Frost, B. Ronald Frost, Donald H. Lindsley, Kevin R. Chamberlain, Susan M. Swapp, James S. Scoates
Published: 01 August 2010
The Canadian Mineralogist (2010) 48 (4): 925–946.
DOI: https://doi.org/10.3749/canmin.48.4.925
... followed during the assimilation of silica by a rock with olivine + orthopyroxene + magnetite + ilmenite in which pyroxene is far more abundant than magnetite. Gray line shows trajectory followed if the modal abundance of magnetite or pyroxene is 0.20. Calculations from the QUILF program of Anderson et al...
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Los Angeles: The most differentiated basaltic martian meteorite

Alan E. Rubin, Paul H. Warren, James P. Greenwood, Robert S. Verish, Laurie A. Leshin, Richard L. Hervig, Robert N. Clayton, Toshiko K. Mayeda
Journal: Geology
Published: 01 November 2000
Geology (2000) 28 (11): 1011–1014.
DOI: https://doi.org/10.1130/0091-7613(2000)28<1011:LATMDB>2.0.CO;2
... 0.92 S). Fayalite-ulvöspinel intergrowths next to silica grains suggest that the late stages of igneous crystallization occurred at an oxygen fugacity close to the fayalite-quartz-magnetite (FMQ) buffer. Application of the QUILF program ( Andersen et al., 1993 ) with the average Los Angeles opaque...
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PROLONGED EXISTENCE OF SULFIDE MELT IN THE BROKEN HILL OREBODY, NEW SOUTH WALES, AUSTRALIA

B. Ronald Frost, Susan M. Swapp, Robert W. Gregory
Published: 01 February 2005
The Canadian Mineralogist (2005) 43 (1): 479–493.
DOI: https://doi.org/10.2113/gscanmin.43.1.479
... at high temperatures. Temperatures are calculated from the QUILF program of Andersen et al. (1993) . ...
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Insights into the redox history of the NWA 1068/1110 martian basalt from mineral equilibria and vanadium oxybarometry

Christopher D.K. Herd
Published: 01 October 2006
American Mineralogist (2006) 91 (10): 1616–1627.
DOI: https://doi.org/10.2138/am.2006.2104
... cited Anderson , D.J. , Lindsley , D.H. , and Davidson , P.M. ( 1993 ) QUIlF: A Pascal program to assess equilibria among Fe-Mg-Mn-Ti oxides, pyroxenes, olivine, and quartz . Computers and Geosciences , 19 , 1333 – 1350 . Barrat , J.A. , Jambon , A. , Gillet , Ph...
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Journal Article

Crustal growth by magmatic underplating: Isotopic evidence from the northern Sherman batholith

C.D. Frost, J.M. Bell, B.R. Frost, K.R. Chamberlain
Journal: Geology
Published: 01 June 2001
Geology (2001) 29 (6): 515–518.
DOI: https://doi.org/10.1130/0091-7613(2001)029<0515:CGBMUI>2.0.CO;2
... ( Lindsley and Frost, 1992 ). Our calculations using the QUILF program ( Andersen et al., 1993 ) suggest that pressure was between 2800 and 3650 bar, that the temperature was at least 802–808 °C, and that oxygen fugacity is ∼0.5 log units below the FMQ buffer. Further evidence for hot, reduced magmas comes...
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Carbon is not required during crystallization to produce ferrobasalts/ferrodiorites (FTP rocks)

Matthew L. Whitaker, Donald H. Lindsley, Jan M. Kubicek Whitaker, Hanna Nekvasil
Published: 01 October 2007
American Mineralogist (2007) 92 (10): 1750–1755.
DOI: https://doi.org/10.2138/am.2007.2643
.... , Lindsley , D.H. , and Davidson , P.M. ( 1993 ) QUILF—a Pascal program to assess equilibria among Fe-Mg-Mn-Ti oxides, pyroxenes, olivine, and quartz . Computers and Geosciences , 19 ( 9 ), 1333 – 1350 . Carr , M.J. ( 2002 ) IgPet for Windows . Terra Softa Inc ., Somerset, New...
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