Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-25T13:46:18.608Z Has data issue: false hasContentIssue false
  • English
  • Français

Porphyroblast textural sector-zoning and matrix displacement

Published online by Cambridge University Press:  05 July 2018

A. H. N. Rice  and
J. I. Mitchell
A. H. N. Rice
Affiliation:
Geologisch-Paläontologisches Institut, Ruprecht-Karls Universität, Im Neuenheimer Feld 234, D-6900 Heidelberg, Germany
J. I. Mitchell
Affiliation:
9 St Peters Street, Roath, Cardiff CF2 3BA, Wales, U.K.
Get access Rights & Permissions [Opens in a new window]

Abstract

There is an association between the development of cleavage domes, a texture reflecting the displacement of insoluble matrix grains by porphyroblasts growing under a bulk hydrostatic stress, and textural sector-zoning. This has been found in garnet, staurolite, chiastolite, pyrite and possibly emerald porphyroblasts. Sector-zoned porphyroblasts form by lineage growth normal to the crystal faces. This causes several distinctive textures (type 1 inclusions and type 2 intergrowths, inclusion bands, growth prongs), all of which are directly or indirectly related to displacement growth. Graphite or other carbonaceous material is ubiquitous in samples showing textural sector-zoning.

Keywords

graphitecleavage domematrix displacementporphyroblastssector-zoningtexturesgarnetstaurolitechiastolitepyriteemerald
Type
Research Article
Information
Mineralogical Magazine , Volume 55 , Issue 380 , September 1991 , pp. 379 - 396
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1991

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Andersen, T. B. (1984) Inclusion patterns in zoned garnets from Magerøy, north Norway. Miner. Mag., 48, 21-6.CrossRefGoogle Scholar
Andréasson, P.-G. and Johansson, L. (1983) The Snasa mega-lens, west-central Scandinavian Caledonides. Geol. Fören. Stock. Förhandl., 104, 305-26.CrossRefGoogle Scholar
Atherton, M. P. and Brenchley, P. J. (1972) A preliminary study of the structure, stratigraphy and metamorphism of some contact rocks of the Western Andes, near the Quebrada Venado Muerto, Peru. Geol. J., 8, 161-78.CrossRefGoogle Scholar
Barker, A. J. (1986) The geology between Salangsdalen and Gratangenfjord, Troms, Norway. Nor. Geol. Unders. Bull., 405, 41–56.Google Scholar
Buerger, M. J. (1932) The significance of ‘block structure’ in crystals. Am. Mineral., 17, 177-91.Google Scholar
Buerger, M. J. (1934) The lineage structure of crystals. Zeit. Krist., 89, 195–220.Google Scholar
Burton, K. W. (1986) Garnet-quartz intergrowths in graphitic pelites: the role of the fluid phase. Mineral. Mag., 50, 611-20.CrossRefGoogle Scholar
Carstens, H. (1986) Displacive growth of authigenic pyrite. J. Sed. Petrol., 56, 252–7.Google Scholar
Correns, C. W. and Steinborn, W. (1939) Experimente zur Messung und Erklärung der sogenannten Kristallisationskraft. Zeit. Krist. A, 10, 117-33.Google Scholar
Duebendorfer, E. M. and Frost, B. R. (1988) Retro-gressive dissolution of garnet: Effect on garnet-biotite geothermometry. Geology, 16, 875–7.2.3.CO;2>CrossRefGoogle Scholar
Ferguson, A. K. (1973) On hour-glass sector-zoning in clinopyroxene. Mineral. Mag., 39, 321–5.CrossRefGoogle Scholar
Ferguson, C. C. (1980) Displacement of inert mineral grains by growing porphyroblasts: A volume balance constraint. Contrib. Mineral. Petrol., 91, 541–4.Google Scholar
Ferguson, C. C. and Harvey, P. K. (1972) Porphyroblasts and ‘crystallisation force’; some textural criteria: Discussion. Geol. Soc. Am. Bull., 83, 3839-40.CrossRefGoogle Scholar
Ferguson, C. C. and Harvey, P. K. and Lloyd, G. E. (1980) On the mechanical interaction between a growing porphyroblast and its surrounding matrix. Contrib. Mineral. Petrol., 75, 339-52.CrossRefGoogle Scholar
Finlay, C. A. and Kerr, A. (1979) Garnet growth in a metapelite from the Moinian rocks of Northern Sutherland. Ibid., 71, 185-91.Google Scholar
Frank, F. C. (1951) Capillary equilibria of dislocated crystals. Acta. Crystallogr:, 4, 497–501.CrossRefGoogle Scholar
Greiling, R. O. (1977) Die Lagerstattenprovinz Sarra-bus-Gerrei (SE-Sardinien/Italien) und ihr geo-logishcer Rahmen. Europaiche Hochschuleschriften, XVII-3, 1–145.Google Scholar
Harker, A. (1950) Metamorphic Textures. Methuen and Co., London.Google Scholar
Harris, R. L. Jr., (1977) Displacement of relict zircons during growth of felspathic porphyroblasts. Geol. Soc. Am. Bull., 88, 1828-30.2.0.CO;2>CrossRefGoogle Scholar
Harvey, P. K. and Ferguson, C. C. (1973) Spherically arranged inclusions in post-tectonic garnet porphyroblasts. Mineral. Mag., 39, 85-8.CrossRefGoogle Scholar
Harvey, P. K. and Ferguson, C. C., Lloyd, G. E., and Shaw, K. G. (1977) Arcuate cleavage zones adjacent to garnet porphyr-oblasts in a hornfelsed metagreywacke. Tectono-phys., 39, 473–6.Google Scholar
Hayes, S. J. (1980) The Caledonian Geology of Northeast Porsangerhalvoya, Finnmark, North Norway. Unpubl. Ph.D. thesis, Univ. Wales.Google Scholar
Hollister, L. S. (1970) Origin, mechanism, and consequences of compositional sector-zoning in staurolite. Am. Mineral, 55, 742-66.Google Scholar
Hollister, L. S. and Bence, A. E. (1967) Staurolite: sectoral compositional variations. Science, 158, 1053–6.CrossRefGoogle ScholarPubMed
Hollister, L. S. and Gancarz, A. J. (1971) Compositional sector-zoning in clinopyroxene from the Narce area, Italy. Am. Mineral, 56, 959-79.Google Scholar
Howkins, J. B. (1961) Helicitic textures in garnets from the Moine rocks of Moidart. Trans. Roy. Soc. Edinb., 18, 315-24.Google Scholar
Ignatov, J. S. (1971) Mosaic growth of pyrite mega-crysts. Dokl Acad. Sci. U.S.S.R.: Earth Sci. Sect., 205, 133–6.Google Scholar
Kastner, M. and Waldbaum, D. R. (1968) Authigenic albite from Rhodes. Am. Mineral, 53, 1579–602.Google Scholar
Kwak, T. A. P. (1981) Sector-zoned annite85-phlogophite15 micas from the Mt. Lindsay Sn-W-F(-Be) deposit, Tasmania, Australia. Can. Mineral, 19, 643-50.Google Scholar
Kouchi, A., Sugawara, Y., Kashima, K., and Suna-gawa, I. (1983) Laboratory growth of sector-zoned clinopyroxenes in the system CaMgSi2O6-CaTiAl2O6 . Contrib. Mineral. Petrol, 83, 177-84.CrossRefGoogle Scholar
Lessing, P. and Standish, R. P. (1973) Zoned garnet from Crested Butte, Colorado. Am. Mineral, 58, 840–2.Google Scholar
MacKenzie, W. S., Donaldson, C. H., and Guilford, C. (1982) Atlas of Igneous Rocks and their Textures. Longman Group U.K. Harlow, England.Google Scholar
MacQueen, J. A. and Powell, D. (1977) Relationships between deformation and garnet growth in Moine (Precambrian) rocks of western Scotland. Geol. Soc. Am. Bull, 88, 235-10.2.0.CO;2>CrossRefGoogle Scholar
Misch, P. (1971) Porphyroblasts and ‘crystallisation force’: some textural criteria. Ibid. 82, 245-51.Google Scholar
Misch, P. (1972a) Porphyroblasts and ‘crystallisation force’: some textural criteria: Reply. Ibid. 83, 921–2.Google Scholar
Misch, P. (19726) Porphyroblasts and ‘crystallisation force’: some textural criteria: Reply. Ibid. 83, 1203–4.Google Scholar
Nassau, K. and Jackson, K. A. (1970) Trapiche emeralds from Chivor and Muzo, Colombia. Am. Mineral, 55, 416-27.Google Scholar
Olimpio, J. C. and Anderson, D. E. (1978) The relationship between chemical and textural (optical) zoning in metamorphic garnets, South Morar, Scot-land. Ibid. 63, 677-89.Google Scholar
Petreus, I. (1978) The divided structure of crystals. I. Lineage and sectoral structure in pyrite and beryl. Ibid. 63, 725-31.Google Scholar
Powell, D. (1966) On the preferred crystallographic orientation of garnet in some metamorphic rocks. Mineral Mag., 35, 1094–109.Google Scholar
Raisin, C. A. (1901) On certain altered rocks from near Bastogne and their relation to others in the district. Q. J. Geol. Soc. London, 57, 55–72.CrossRefGoogle Scholar
Rast, N. (1965) Nucleation and growth of metamorphic minerals. In Controls of Metamorphism (Pitcher, W. S. and Flinn, G. S., eds.), Oliver & Boyd, Edinburgh.Google Scholar
Reeder, R. J. and Prosky, J. L. (1986) Compositional sector-zoning in dolomite. J. Sed. Petrol., 56, 237-47.Google Scholar
Reid, C., Barrow, G., Sherlock, R. L., MacAlister, Dewey, H., and Bromehead, C. N. (1912) The Geology of Dartmoor. Memoir of the Geological Survey, no. 338.Google Scholar
Rice, A. H. N. (1987) Continuous out-of-sequence ductile thrusting in the Norwegian Caledonides. Geol. Mag., 124, 249-60.CrossRefGoogle Scholar
Roberts, D. (1968) The structural and metamorphic history of the Langstrand-Finnfjord area, S0r0y, Northern Norway. Norges geol. Unders., 253, 1–160.Google Scholar
Rubenach, M. J. and Bell, T. H. (1988) Microstructural controls and the role of graphite in matrix/porphyrob-last exchange during synkinematic andalusite growth in a granite aureole. Metam. Geol, 6, 651-66.CrossRefGoogle Scholar
Saggerson, E. P. (1974) Porphyroblastesis and displacement: some new textural criteria from pelitic horn-fels. Mineral Mag., 39, 793–7.CrossRefGoogle Scholar
Sahama, T. G. (1966) Polygonal growth of beryl. C. R. Soc. Geol Finlande, 38, 31–45.Google Scholar
Saigal, G. C. and Walton, E. K. (1988) On the occurrence of displacive calcite in lower Old Red Sandstone of Carnousie, Eastern Scotland. J. Sed. Petrol, 58, 131–5.Google Scholar
Schuiling, R. D. and Wensink, H. (1962) Porphyroblas-tic and poikiloblastic textures. Neues Jahrb. Mineral. Mh., 247-54.Google Scholar
Searl, A. (1990) Complex sector-zoning in ankerite: geochemical controls on crystal morphology and intersector element partitioning. Mineral. Mag., 54, 501–7.CrossRefGoogle Scholar
Selverstone, J. and Munoz, J. L. (1987) Fluid hetero-geneities and hornblende stability in interlayered graphitic and nongraphitic schists (Tauern Window, Eastern Alps). Contrib. Mineral. Petrol, 96, 426-40.CrossRefGoogle Scholar
Shelley, D. (1972) Porphyroblasts and ‘crystallisation force’: some new textural criteria: Discussion. Geol. Soc. Am. Bull, 83, 919-20.CrossRefGoogle Scholar
Smellie, J. A. T. (1974) Compositional variation within staurolite crystals from the Ardara aureole, Co. Donegal, Ireland. Mineral. Mag., 39, 672-83.CrossRefGoogle Scholar
Spry, A. (1969) Metamorphic Textures. Pergamon Press, Oxford.Google Scholar
Spry, A. (1972) Porphyroblasts and ‘crystallisation force’: some new textural criteria: discussion. Geol. Soc. Am. Bull, 83, 1201–2.CrossRefGoogle Scholar
Spry, A. (1974) Spherically arranged inclusions in post-tectonic garnet porphyroblasts: a comment. Mineral. Mag., 39, 723-24.CrossRefGoogle Scholar
Vaniman, D. (1978) Crystallisation history of sector-zoned microcline megacrysts from the Godai Valley pluton, Nigeria. Ibid. 42, 443-51.Google Scholar
Vernon, R. H. and Powell, C. McA. (1976) Porphyrob-lastesis and displacement: some new textural criteria from pelitic hornfels-comment. Ibid. 40, 787–8.Google Scholar
Wass, S. Y. (1973) The origin and petrogenetic significance of hour-glass zoning in titaniferous clino-pyroxenes. Ibid. 39, 133-44.Google Scholar
Williams, H., Turner, F. J., and Gilbert, C. M. (1954) Petrography. Freeman and Co., San Francisco.Google Scholar
Wilson, M. R. (1971) On syntectonic porphyroblast growth. Tectonophys., 11, 239-60.CrossRefGoogle Scholar
Workman, D. R. and Cowperthwaite, I. A. (1963) An occurrence of kyanite pseudomorphing andalusite from Southern Rhodesia. Geol. Mag., 100, 456-66.CrossRefGoogle Scholar
Yardley, B. W. D. (1974) Porphyroblasts and ‘crystallisation force’: discussion of some theoretical considerations. Geol. Soc. Am. Bull., 85, 61-2.2.0.CO;2>CrossRefGoogle Scholar
Yardley, B. W. D. and Mackenzie, W. S., Guilford, C. (1990) Atlas of metamorphic rocks and their textures. Longman Group U.K., Harlow, England.Google Scholar
Zwart, H. J. (1962) On the determination of polymeta- morphic mineral associations, and its application to the Bosost Area (Central Pyrenees). Geol. Rund., 52, 38–65.CrossRefGoogle Scholar
Zwicky, F. (1929) On the imperfections of crystals. Proc, Natl. Acad. Sci. U.S., 15, 253–9.CrossRefGoogle ScholarPubMed