Nature 300, 697 - 701 (23 December 1982); doi:10.1038/300697a0

Garnet−orthopyroxene barometry for granulites and peridotites

S. L. Harley^* & D. H. Green

Department of Geology, University of Tasmania, Hobart 7000, Australia
^*Present address: Institut für Kristallographie und Petrographie, E. T. H.−Zentrum, CH-8092, Zurich, Switzerland.

An experimentally calibrated geobarometer based on the solubility of alumina in orthopyroxene coexisting with garnet is presented. This geobarometer is based on experiments in the FeO−MgO−Al₂O₃−SiO₂ and CaO−FeO−MgO−Al₂O₃−SiO₂ systems performed at high temperatures and pressures (800−1,200 °C and 5−20 kbar). Applying the geobarometer to a variety of natural garnet−orthopyroxene assemblages from granulite facies terrains and other occurrences, yields reliable and consistent pressure estimates for these samples.

References

1.	Boyd, F. R. & England, J. L. Yb Carnegie Instn Wash. 63, 157−161 (1964). | ChemPort |
2.	Green, D. H. & Ringwood, A. E. Geochim. cosmochim. Acta 31, 767−833 (1967). | ISI | ChemPort |
3.	Boyd, F. R. Geochim. cosmochim. Acta 37, 2533−2546 (1973). | Article | ISI | ChemPort |
4.	Akella, J. & Boyd, F. R. Yb Carnegie Instn Wash. 72, 523−527 (1973).
5.	Wood, B. J. Contr. Miner. Petrol. 46, 1−15 (1974). | ISI | ChemPort |
6.	O'Hara, M. J. & Yarwood, G. Phil. Trans. R. Soc. 288A, 441−456 (1978).
7.	MacGregor, I. D. Am. Miner. 59, 110−119 (1974). | ISI | ChemPort |
8.	Boyd, F. R. & Nixon, P. H. Phys. Chem. Earth 9, 431−454 (1975). | Article | ChemPort |
9.	Carswell, D. A. & Gibb, F. G. F. Contr. Miner. Petrol. 74, 403−416 (1980). | ISI | ChemPort |
10.	Mitchell, R. H. Contr. Miner. Petrol. 67, 341−347 (1978). | ISI | ChemPort |
11.	Nixon, P. H. & Boyd, F. R. in Lesotho Kimberlites (ed. Nixon, P. H.) 48−57 (Cape and Transvaal, Capetown, 1973). | ChemPort |
12.	Arima, M. & Onuma, K. Contr. Miner. Petrol. 61, 251−265 (1977). | ISI | ChemPort |
13.	Howells, S. & O'Hara, M. J. Phil. Trans. R. Soc. 288A, 471−486 (1978). | ISI | ChemPort |
14.	Danckwerth, P. A. & Newton, R. C. Contr. Miner. Petrol. 66, 189−201 (1978). | ISI | ChemPort |
15.	Lane, D. L. & Ganguly, J. J. geophys. Res. 85, 6963−6972 (1981). | ISI |
16.	Perkins, D., Holland, T. J. B. & Newton, R. C. Contr. Miner. Petrol. 78, 99−109 (1981). | ISI | ChemPort |
17.	Perkins, D. & Newton, R. C. Contr. Miner. Petrol. 75, 291−300 (1981). | ISI | ChemPort |
18.	Saxena, S. K. & Ghose, S. Am. Miner. 56, 532−559 (1971). | ISI | ChemPort |
19.	Ganguly, J. & Ghose, S. Contr. Miner. Petrol. 69, 375−385 (1979). | ISI | ChemPort |
20.	Wood, B. J. & Banno, S. Contr. Miner. Petrol. 42, 109−124 (1973). | ISI | ChemPort |
21.	Skinner, B. J. & Boyd, F. R. Yb Carnegie Instn Wash. 63, 163−165 (1964). | ChemPort |
22.	Cressey, G., Schmid, R. & Wood, B. J. Contr. Miner. Petrol. 67, 397−404 (1978). | ISI | ChemPort |
23.	Wood, B. J. & Nicholls, I. Contr. Miner. Petrol. 66, 389−400 (1978). | ISI | ChemPort |
24.	O'Neill, H. St. S. & Wood, B. J. Contr. Miner. Petrol. 70, 59−70 (1979).
25.	Haselton, H. T. & Newton, R. C. J. geophys. Res. 85, 6983−6982 (1981).
26.	Jenkins, D. M. & Newton, R. C. Contr. Miner. Petrol. 68, 407−419 (1979). | ISI | ChemPort |
27.	Dahl, P. S. Am. Miner. 65, 854−866 (1980). | ISI |
28.	Annersten, H. & Seifert, F. Contr. Miner. Petrol. 77, 158−164 (1981). | ISI | ChemPort |
29.	Arima, M. J. Fac. Sci. Hokk. IV 18, 305−338 (1978). | ChemPort |
30.	Krylova, M. D. & Priyatkina, L. A. Dokl. Akad. Nauk SSSR 226, 148−151 (1976).
31.	Karsakov, L. P. Dokl. Akad. Nauk SSSR 210, 187−190 (1973). | ISI | ChemPort |
32.	Kitsul, V. I. & Kopylov, P. A. Dokl. Akad. Nauk. SSSR 209, 161−164 (1974).
33.	Nixon, P. H., Reedman, A. J. & Burns, L. K. Miner. Mag. 39, 420−428 (1973). | ISI | ChemPort |
34.	Hansen, B. Contr. Miner. Petrol. 76, 234−242 (1981). | ISI | ChemPort |
35.	Ellis, D. J. Contr. Miner. Petrol. 74, 201−210 (1980). | ISI | ChemPort |
36.	Ellis, D. J., Sheraton, J. W., England, R. N. & Dallwitz, W. B. Contr. Miner. Petrol. 72, 123−143 (1980). | ISI | ChemPort |
37.	Boone, G. M. Geol. Soc. Am. Prog. 10, 34 (1978).
38.	Berg, J. H. Contr. Miner. Petrol. 64, 33−52 (1977). | ISI | ChemPort |
39.	Berg, J. H. J. Petrol. 18, 399−430 (1977). | ISI | ChemPort |
40.	Perkins, D. & Newton, R. C. Nature 292, 144−146 (1981). | Article | ISI | ChemPort |
41.	Levering, J. F. & White, A. J. R. Contr. Miner. Petrol. 21, 9−52 (1966).
42.	Irving, A. J. J. Petrol. 15, 1−40 (1974). | ISI | ChemPort |
43.	Wilkinson, J. F. G. Contr. Miner. Petrol. 46, 275−299 (1974). | ISI | ChemPort |
44.	Smith, D. C. & Levy, S. Earth planet. Sci. Lett. 29, 107−125 (1976). | Article | ISI | ChemPort |
45.	Ferguson, J. & Sheraton, J. F. in Kimberlites, diatremes and Diamonds (eds Boyd, F. R. & Meyer, H. O. A.) 140−161 (American Geophysical Union, Washington DC, 1979). | ChemPort |
46.	O'Neill, H. St. S. Contr. Miner. Petrol. 77, 185−194 (1981).
47.	Griffin, W. L., McGregor, V. R., Nutman, A., Taylor, P. N. & Bridgwater, D. Earth planet. Sci. Lett. 50, 59−74 (1981). | Article | ISI |
48.	Wells, P. R. A. J. Petrol. 20, 187−226 (1979). | ISI | ChemPort |
49.	Savage, D. & Sills, J. D. Contr. Miner. Petrol. 74, 153−163 (1980). | ISI | ChemPort |
50.	Davidson, L. R. & Mathison, C. I. Neues Jb. Miner. Mh. 6, 272−287 (1974).
51.	Schreyer, W. & Abraham, K. Contr. Miner. Petrol. 68, 53−62 (1978). | ISI | ChemPort |
52.	Griffin, W. L. & Raheim, A. Lithos 6, 21−40 (1973). | Article | ChemPort |
53.	McLelland, J. M. & Whitney, P. R. Contr. Miner. Petrol. 60, 161−181 (1977). | ISI | ChemPort |
54.	Howie, R. A. & Subramanium, A. P. Miner. Mag. 31, 565−586 (1957). | ChemPort |
55.	Jan, M. Q. & Howie, R. A. J. Petrol. 22, 85−126 (1981). | ISI | ChemPort |
56.	Weaver, B. L., Tarney, J., Windley, B. F., Sugavanam, E. B. & Rao, V. V. in Archaean Geochemistry (eds Windley, B. F. & Naqvi, S. M.) 177−204 (Elsevier, Amsterdam, 1978).
57.	Griffin, W. L., Carswell, D. A. & Nixon, P. H. in The Mantle Sample (eds Boyd, F. R. & Meyer, H. O. A.) 59−86 (American Geophysical Union, Washington, DC, 1979). | ChemPort |
58.	Obata, M. J. Petrol. 21, 533−572 (1980). | ISI |
59.	Evans, B. W. & Trommsdorff, V. Earth planet, Sci. Lett. 40, 333−348 (1978). | Article | ISI | ChemPort |
60.	Green, D. H. in Contributions to Physicochemical Petrology, 37−44 (Sobolev Vol. Akademie Nauk USSR, 1969). | ChemPort |
61.	Medaris, L. G. Jr Lithos 13, 339−353 (1980). | Article | ISI | ChemPort |
62.	Lappin, M. A. J. Petrol. 15, 567−601 (1974). | ISI | ChemPort |
63.	Rollinson, H. R. Lithos 14, 225−238 (1981). | Article | ISI | ChemPort |
64.	Ellis, D. J. & Green, D. H. Contr. Miner. Petrol. 71, 13−22 (1979). | ISI | ChemPort |
65.	Harley, S. L. thesis, Univ. Tasmania, (1981).