Calculation of garnet fractionation in metamorphic rocks, with application to a flat-top, Y-rich garnet population from the Ruhla Crystalline Complex, Central Germany

Journal of Petrology

Volumn 47, Issue 12, 2006, Pages 2335-2356

  Zeh, Armin ^a  

^a UNIVERSITY OF WÜRZBURG   (Germany)

Author keywords

Fractionation; Garnet; Pseudosection; THERMOCALC; Yttrium

Indexed keywords

BIOTITE; CHEMICAL COMPOSITION; FRACTIONATION; GARNET; METAMORPHIC ROCK; NUMERICAL METHOD; P-T CONDITIONS; P-T-T PATH; PHASE TRANSITION; RAYLEIGH NUMBER; SIZE DISTRIBUTION; YTTRIUM; ZONING;

CENTRAL EUROPE; EURASIA; EUROPE; GERMANY;

EID: 33846005199     PISSN: 00223530     EISSN: 14602415     Source Type: Journal    
DOI: 10.1093/petrology/egl046     Document Type: Article

References (31)

1. Carlson, W. D. (1989). The significance of intergranular diffusion to the mechanisms and kinetics of porphyroblast crystallization. Contributions to Mineralogy and Petrology 103, 1-24.
2. Chernoff, C. B. & Carlson, W. D. (1997). Disequilibrium for Ca during growth of pelitic garnet. Journal of Metamorphic Geology 15, 421-438.
3. Daniel, C. G. & Spear, F. S. (1999). The clustered nucleation and growth processes of garnet in regional metamorphic rocks from north-west Connecticut, USA. Journal of Metamorphic Geology 17, 503-520.
4. De Capitani, C. & Brown, T. H. (1986). The computation of chemical equilibrium in complex systems containing non-ideal solutions. Geochimica et Cosmochimica Acta 51, 2639-2652.
5. Evans, T. P. (2004). A method for calculating effective bulk composition modification due to crystal fractionation in garnet-bearing schist: implications for isopleth thermobarometry. Journal of Metamorphic Geology 22, 547-557.
6. Florence, F. P. & Spear, F. S. (1991). Effects of diffusional modification of garnet growth zoning on P-T path calculations. Contributions to Mineralogy and Petrology 107, 487-500.
7. Hauzenberger, C. A., Robl, J. & Stüwe, K. (2005). Garnet zoning in high-pressure granulite-facies metapelites, Mozambique belt, SE Kenya: constraints on the cooling history. European Journal of Mineralogy 17, 43-55.
8. Hickmott, D. D. & Shimizu, N. (1990). Trace element zoning in garnet from the Kwoiek Area, British Columbia: Disequilibrium partitioning during garnet growth? Contributions to Mineralogy and Petrology 104, 619-630.
9. Hirsch, D. M., Prior, D. J. & Carlson, W. D. (2003). An overgrowth model to explain multiple, dispersed high-Mn regions in the cores of garnet porphyroblasts. American Mineralogist 88, 131-141.
10. Holland, T. J. B. & Powell, R. (1998). An internally consistent thermodynamic data set for phases of petrological interest. Journal of Metamorphic Geology 16, 309-343.
11. Hollister, L. S. (1966). Garnet zoning: An interpretation based on the Rayleigh fractionation model. Science 154, 1647-1651.
12. Konrad-Schmolke, M., Handy, M. R., Babist, J. & O'Brien, P. J. (2005). Thermodynamic modelling of diffusion-controlled garnet growth. Contributions to Mineralogy and Petrology 149, 181-195.
13. Kretz, R. (1966). Grain size distribution for certain metamorphic minerals in relation to nucleation and growth. Journal of Geology 74, 147-173.
14. Kretz, R. (1974). Some models for the rate of crystallization of garnet in metamorphic rocks. Lithos 7, 123-131.
15. Lanzirotti, A. (1995). Yttrium zoning in metamorphic garnets. Geochimica et Cosmochimica Acta 59, 4105-4110.
16. Marmo, B. A., Clarke, G. L. & Powell, R. (2002). Fractionation of bulk rock composition due to porphyroblast growth; effects on eclogite facies mineral equilibria, Pam Penninsula, New Caledonia. Journal of Metamorphic Geology 20, 151-165.
17. Meth, C. E. & Carlson, W. D. (2005). Diffusion controlled synkinematic growth of garnet from a heterogeneous precursor at Passo del Sol, Switzerland. Canadian Mineralogist 43, 157-182.
18. 2. American Journal of Science 302, 312-345.
19. Powell, R., Holland, T. J. B. & Worley, B. (1998). Calculating phase diagrams involving solid solutions via non-linear equations, with examples using THERMOCALC. Journal of Metamorphic Geology 16, 577-588.
20. Pyle, J. M. & Spear, F. S. (2000). An empirical garnet (YAG)-xenotime thermometer. Contributions to Mineralogy and Petrology 138, 51-58.
21. Spear, F. S. (1993). Metamorphic Phase Equilibria and Pressure-Temperature-Time Paths. Washington, DC: Mineralogical Society of America, pp. 799.
22. Spear, F. S., Kohn, M. J., Florence, F. P. & Menard, T. (1990). A model for garnet and plagioclase growth in pelitic schists; implications for thermobarometry and P-T path determinations. Journal of Metamorphic Geology 8, 683-696.
23. Stüwe, K. (1997). Effective bulk composition change due to cooling: A model predicting complexities in retrograde reaction textures. Contributions to Mineralogy and Petrology 129, 43-52.
24. Vance, D. & 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.
25. Watson, E. B. (1996). Surface enrichment and trace-element uptake during crystal growth. Geochimica et Cosmochimica Acta 60, 5013-5020.
26. 3. Journal of Metamorphic Geology 18, 497-511.
27. 2O (NCKFMASH). Journal of Metamorphic Geology 19, 139-153.
28. Zeh, A. (1996). Die Druck-Temperatur-Deformations-Entwicklung des Ruhlaer Kristallins. Geotektonische Forschungen 86, 212 S.
29. Zeh, A. (2001). Inference of a detailed P-T path from P-T pseudosections using metapelitic rocks of variable composition from a single outcrop, Shackleton Range, Antarctica. Journal of Metamorphic Geology 19, 329-350.
30. Zeh, A. & Holness, M. (2003). The effect of reaction overstep on garnet microtextures in metapelitic rocks of the Ilesha Schist Belt, SW Nigeria. Journal of Petrology 44, 967-994.
31. Zeh, A. & Millar, I.L. (2001). Metamorphic evolution of garnet-epidote-biotite gneiss from the Moine Supergroup, Scotland, and geotectonic implications. Journal of Petrology 42, 529-554.