The effect of zoned garnet on metapelite pseudosection topology and calculated metamorphic P-T paths

American Mineralogist

Volumn 90, Issue 10, 2005, Pages 1619-1628

  Zuluaga, Carlos A ^a,b   Stowell, Harold H ^a   Tinkham, Douglas K ^c  

^a UNIVERSITY OF ALABAMA   (United States)

^b POMONA COLLEGE   (United States)

^c UNIVERSITY OF CALGARY   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

BIOTITE; FELDSPAR; GARNETS; METAMORPHIC ROCKS; MICA; MINERAL EXPLORATION; STRUCTURAL GEOLOGY;

BULK-ROCK CHEMISTRY; BULK-ROCK COMPOSITION; CHEMICAL COMPOSITIONS; CHEMICAL FRACTIONATION; COMPOSITIONAL CHANGES; MINERAL ASSEMBLAGE; MINERAL CHEMISTRY; TEMPERATURE SHIFT;

TOPOLOGY;

GARNET; METAMORPHISM; METAPELITE; MINERALOGY; P-T CONDITIONS;

EID: 27644524256     PISSN: 0003004X     EISSN: None     Source Type: Journal    
DOI: 10.2138/am.2005.1741     Document Type: Article

References (30)

1. Albee, A.L. (1965) Phase equilibria in three assemblages of kyanite-zone pelitic schists, Lincoln Mtn. Quadrangle, Central Vermont. Journal of Petrology, 6, 246-301.
2. Carlson, W.D. (2002) Scales of disequilibrium and rates of equilibration during metamorphism. American Mineralogist, 87, 185-204.
3. Florence, F.P. and Spear, F.S. (1993) Influences of reaction history and chemical diffusion on P-T calculations for staurolite schists from Littleton Formation, northwestern New Hampshire. American Mineralogist, 78, 345-359.
4. Florence, F.P. and Spear, F.S. (1995) Intergranular diffusion kinetics of Fe and Mg during retrograde metamorphism of a pelitic gneiss from the Adirondacks Mountains. Earth and Planetary Science Letters, 134, 329-340.
5. Guidotti, C.V. and Johnson, S.E. (2002) Pseudomorphs and associated microstructures of western Maine. Journal of Structural Geology, 24, 1139-1156.
6. Hollister, L.S. (1966) Garnet zoning; an interpretation based on Rayleigh fractionation model. Science, 154, 1647-1651.
7. Holland, T. and Powell, R. (1998) An internally consistent thermodynamic data set for phases of petrological interest. Journal of Metamorphic Geology, 16, 309-344.
8. Kretz, R. (1983) Symbols for rock-forming minerals. American Mineralogist, 68, 277-279.
9. Lang, H.M. (1996) Pressure-temperature-reaction history of metapelitic rocks from the Maryland Piedmont on the basis of correlated garnet zoning and plagioclase-inclusion composition. American Mineralogist, 81, 1460-1475.
10. Mahar, E.M., Baker, J.M., Powell, R., Holland, T.J.B., Howell, N. (1997) The effect of Mn on mineral stability in metapelites. Journal of Metamorphic Geology, 15, 223-228.
11. Marmo, B.A., Clarke, G.L., and Powell, R. (2002) Fractionation of bulk rock composition due to porphyroblasts growth: effects on eclogite facies mineral equilibria, Pam Peninsula, New Caledonia. Journal of Metamorphic Geology, 20, 151-165.
12. Powell, R. and Holland, T. (1994) Optimal geothermometry and geobarometry. American Mineralogist, 79, 120-133.
13. Powell, R., Holland, T., and Worley, B. (1998) Calculating phase diagrams involving solid solutions via non-linear equations, with examples using THERMOCALC. Journal of Metamorphic Geology, 16, 577-588.
14. Rubie, D.C. (1998) Disequilibrium during metamorphism: the role of nucleation kinetics. In P.J. Treloar and P.J. O'Brien, Eds., What Drives Metamorphism and Metamorphic Reactions, 138, p. 199-214. The Geological Society, London.
15. Spear, F.S. (1988) Metamorphic, fractional crystallization and internal metasomatism by diffusional homogenization of zoned garnets. Contributions to Mineralogy and Petrology, 99, 507-517.
16. Spear, F.S. (1993) Metamorphic phase equilibria and pressure-temperature-time paths, 799 p. Mineralogical Society of America, Washington, D.C.
17. 2O. Contributions to Mineralogy and Petrology, 101, 149-164.
18. Stallard, A. (1998) Episodic porphyroblast growth in the Fleur de Lys Supergroup, Newfoundland: timing relative to the sequential development of multiple crenulation cleavages. Journal of Metamorphic Geology, 16, 711-728.
19. Stallard, A. and Hickey, K. (2002) A comparison of microstructural and chemical patterns in garnet from the Fleur de Lys Supergroup, Newfoundland. Journal of Structural Geology, 24, 1109-1123.
20. Stowell, H.H. and Tinkham, D. (2003) Integration of Phase Equilibria Modeling and Garnet Sm-Nd Chronology for Construction of P-T-t Paths: Examples from the Cordilleran Coast Plutonic Complex, USA. In D. Vance, W. Müller, and I.M. Villa, Eds., Geochronology: Linking the Isotopic Record with Petrology and Textures, no, 220, p. 119-145. The Geological Society, London.
21. Stüwe, K. (1997) Effective bulk composition changes due to cooling: a model of predicting complexities in retrograde reaction textures. Contributions to Mineralogy and Petrology, 129, 43-52.
22. Thompson, J.B., Jr. (1957) The graphical analysis of mineral assemblages in pelitic schists. American Mineralogist, 42, 842-858.
23. Tinkham, D.K. (2002) MnNCKFMASH metapelite phase equilibria, garnet activity modeling, and garnet Samarium-Neodymium chronology: Applications to the Waterville Formation. Maine, and south-central Nason Terrane, Washington, 241 p. Ph.D. thesis, University of Alabama, Tuscaloosa.
24. Tinkham, D.K. and Ghent, E.D. (2005) Estimating P-T conditions of garnet growth with isochemical phase-diagram sections and the problem of effective bulk-composition. Canadian Mineralogist, 43, 35-50.
25. Tinkham, D.K., Zuluaga, C.A., and Stowell, H.H. (2001) Metapelite phase equilibria modeling in MnNCKFMASH: the effect of variable A1203 and MgO/ (MgO+FeO) on mineral stability. Geological Materials Research, 3, 1-42.
26. Vance, D. and Mahar, E. (1998) Pressure-temperature paths from P-T pseudosections and zoned garnets: potential, limitations and examples from the Zanskar Himalaya, NW India. Contributions to Mineralogy and Petrology, 132, 225-245.
27. Waters, D.J. and Lovegrove, D.P. (2002) Assessing the extent of disequilibrium and overstepping of prograde metamorphic reactions in metapelites from the Bushveld Complex aureole, South Africa. Journal of Metamorphic Geology, 20, 135-149.
28. Whitney, D.L., Mechum, T.A., Dilek, Y., and Kuehner, S.M. (1996) Modification of garnet by fluid infiltration during regional metamorphism in garnet through sillimanite-zone rocks, Dutchess County, New York. American Mineralogist, 81, 696-705.
29. Zeh, A. and Holness M.B. (2003) The effect of reaction overstep on garnet micro-textures in metapelitic rocks of the Ilesha Schist Belt, SW Nigeria. Journal of Petrology, 44, 967-994.
30. Zuluaga, C.A., Stowell, H.H., and Wang, G. (2003) Toward better metamorphic peak P-Testimates: combining forward and backward thermodynamic modeling. Geological Society of America Abstracts with Programs, 35, 632.