Retrograde replacement of andalusite by Ca-Na mica in chloritoid-bearing metapelites. PTX modelling of rocks with different Al content in the MnNCKFMASH system

Journal of Metamorphic Geology

Volumn 22, Issue 9, 2004, Pages 777-792

  Martinez, Francisco Z ^a   Reche, J ^a   Arboleya, M L ^a   Julivert, M ^a  

^a UNIVERSITAT AUTÒNOMA DE BARCELONA   (Spain)

Author keywords

Andalusite retrogression; Chloritoid bearing metapelites; Margarite; MnNCKFMASH system; P T and T X pseudosections; Paragonite

Indexed keywords

ALUMINUM; ANDALUSITE; METAMORPHISM; MICA; P-T CONDITIONS; REPLACEMENT; RETROGRADE METAMORPHISM;

EID: 11944262372     PISSN: 02634929     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1525-1314.2004.00549.x     Document Type: Article

References (21)

1. Beddoe-Stephens, B., 1990. Pressures and temperatures of Dalradian metamorphism and the andalusite-kyanite transformation in the northeast Grampians. Scottish Journal of Geology, 26, 3-14.
2. Blencoe, J. G., Guidotti, C. V. & Sassi F., 1994. The paragonite-muscovite solvus: II. Numerical geothermometers for natural, quasibinary paragonite-muscovite pairs. Geochimica et Cosmochimica Acta, 58, 2277-2288.
3. Fernández-Suárez, J., Dunning, G. R., Jenner, G. A. & Gutiérrez Alonso, G., 2000. Variscan collisional magmatism and deformation in NW Iberia. Constraints from U-Pb geochronology of granitoids. Journal of the Geological Society, 157, 565-576.
4. Ferry, J. M., 2000. Patterns of mineral occurrence in metamorphic rocks. American Mineralogist, 85, 1573-1588.
5. Frey, M., Bucher, K., Frank, E. & Schwander, H., 1982. Margarite in the Central Alps. Schweizerische Mineralogische und Petrographische Mitteilungen, 62, 21-45.
6. Guidotti, C. V., 1984. Mica in metamorphic rocks. In: Mica (ed. Bailey, S.W.), Reviews in Mineralogy, 13, 357-467.
7. Guidotti, C. V. & Cheney, J. T., 1976. Margarite pseudomorphs after chiastolite in the Rangeley area, Maine. American Mineralogist, 61, 431-434.
8. Guidotti, C. V., Post, J. L. & Cheney, J. T., 1979. Margarite pseudomorphs after chiastolite in the Georgetown area, California. American Mineralogist, 64, 728-732.
9. 2O in metamorphism an unexpected behaviour in the preservation of metamorphic mineral assemblages. Journal of Metamorphic Geology, 19, 445-454.
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. Julivert, M. & Soldevila, J., 1998. Small-scale structures formed during progressive shortening and subsequent collapse in the Navia-Alto Sil slate belt (Hercynian fold belt, NW Spain). Journal of Structural Geology 20, 447-458.
12. 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, 223-238.
13. Martínez, F. J., Carreras, J., Arboleya, M. L. & Dietsch, C., 1996. Structural and metamorphic evidence of local extension along the Vivero fault coeval with bulk crustal shortening in the Variscan chain (NW Spain). Journal of Structural Geology, 18, 61-73.
14. Martínez, F. J., Reche, J. & Arboleya, M. L. 2001. P-T modelling of the andalusite-kyanite-andalusite sequence and related assemblages in high-Al graphitic pelites. Prograde and retrograde paths in a late kyanite belt in the Variscan Iberia. Journal of Metamorphic Geology, 19, 661-677.
15. 5 "triplepoint" assemblages in muscovite + biotite + quartz-bearing metapelites, with implications. American Mineralogist, 86, 1414-1422.
16. Pérez-Estaún, A., Martínez-Catalan, J. R. & Bastida, F., 1991. Crustal thickening and deformation sequence in the footwall to the suture of the Variscan belt of northwest Spain. Tectonophysics, 191, 243-253.
17. 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.
18. Reche, J., Martínez, F. J. & Arboleya, M. L., 1998a. Low- to medium-pressure Variscan metamorphism in Galicia (NW Spain): evolution of a kyanite-bearing synform and associated bounding antiformal domains. In: What Drives Metamorphism and Metamorphic Reactions? (eds Treloar, P.J. & O'Brien, P.J.). Geological Society of London Special Publication, 138, 61-79.
19. Reche, J., Martínez, F. J., Arboleya, M. L., Dietsch, C. & Briggs, W. D., 1998b. Evolution of a kyanite-bearing belt within a HT-LP orogen: the case of NW Variscan Iberia. Journal of Metamorphic Geology, 16, 379-594.
20. 2O. Contributions to Mineralogy and Petrology, 101, 149-164.
21. Symmes, G. H. & Ferry, J. M., 1991. Evidence from mineral assemblages for infiltration of pelitic schists by aqueous fluids during metamorphism. Contributions to Mineralogy and Petrology, 108, 419-438.