Abstract
Garnet, staurolite and aluminosilicates in St, Ky, and Sil zones on the northeastern flank of the Pelham Dome, Massachusetts, USA show microstructural and petrographic features suggesting multiple episodes of mineral growth. Sigmoidal, staircase, spiral and differentiated crenulation cleavage inclusion trail geometries as well as other textural truncations are preserved in both garnet and staurolite indicating these porphyroblasts developed by at least three periods of growth. These periods were distinguished using the trends and relative timing of the foliation inflexion/intersection axes (called FIA) preserved as inclusion trails within porphyroblasts. A total of 122 FIA trends were determined from garnet, staurolite, biotite and plagioclase porphyroblasts. FIA trends of garnet and staurolite are divided into four FIA sets as follows; NW-SE (set A), NE-SW (set B), E-W (set C) and NNW-SSE to NNE-SSW (set D). The relative timing of each FIA set was determined from porphyroblasts containing two or three different FIA trends consistently developed from core to rim. The succession from the oldest to youngest FIA sets are designated A, B, C and D. The variation of FIA trend populations around the Northfield syncline may be also attributed to difference in metamorphic grade and fold geometry, and may have been controlled by modal changes in metamorphic minerals involved in garnet/staurolite growth and consumption reactions accompanying the multiple deformation and metamorphic events. Based on Temperature—time (T—t) geochronological data and late-Paleozoic tectonic model in the study area, garnet and staurolite porphyroblasts containing four FIA sets may have developed during Devonian-Mississipian, and the matrix may have remetamorphosed during Permian.
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References
Barker, A.J., 1994, Interpretation of porphyroblast inclusion trails: limitation imposed by growth kinetics and strain rates. Journal of Metamorphic Geology, 12, 681–694.
Bell, T.H. and Cuff, C., 1989, Dissolution, solution transfer, diffusion versus fluid flow and volume loss during deformation/metamorphism. Journal of Metamorphic Geology, 7, 425–447.
Bell, T.H., Forde, A. and Wang, J., 1995, A new indicator of movement direction during orogenesis: measurement technique and application to the Alps. Terra Nova, 7, 500–508.
Bell, T.H. and Hayward, N., 1991, Episodic metamorphic reactions during orogenesis: The control of deformation partitioning on reaction sites and duration. Journal of Metamorphic Geology, 9, 519–640.
Bell, T.H. and Hickey, K.A., 1997, Distribution of pre-folding linear indicators of movement direction around the Spring Hill Synform, Vermont: Significance for mechanism of folding in this portion of the Appalachians. Tectonics, 274, 275–294.
Bell, T.H., Hickey, K.A. and Upton, G.J.G., 1998, Distinguishing and correlating multiple phases of metamorphism across a multiply deformed region using the axes of spiral, staircase and sigmoidally curved inclusion trails in garnet. Journal of Metamorphic Geology, 16, 767–794.
Bell, T.H., Hickey, K.A. and Wang, J., 1997, Spiral and staircase inclusion trail axes within garnet and staurolite porphyroblasts from the Bolten Syncline, Connecticut: timing of porphyroblast growth and the effects of fold development. Journal of Metamorphic Geology, 15, 467–478.
Bell, T.H., Johnson, S.E., Davis, B., Forde, A., Hayward, N. and Wilkins, C., 1992, Porphyroblast inclusion-trail orientation data: eppure non son girate?. Journal of Metamorphic Geology, 10, 295–307.
Bell, T.H. and Rubenach M.J., 1983, Sequential porphyroblast growth and crenulation cleavage development during progressive deformation. Tectonophysics, 92, 171–194.
Bell, T.H., Rubenach M.J. and Fleming, P.D., 1986, Porphyroblast nucleation, growth and dissolution in regional metamorphic rocks as a function of deformation partitioning during foliation development. Journal of Metamorphic Geology, 4, 37–67.
Brodie, K.H. and Rutter, E.H., 1985, On the relationship between deformation and metamorphism, which special reference to the behaviour of the basic rocks. Advances in Physical Geochemistry, 4, 138–179.
Foster, C.T., 1982, Textural variation of sillimanite segregations, Canadian Mineralogist, 20, 379–392.
Getty, S.R. and Gromet, L.P., 1992, Geochronological cinstraints on ductile deformation, crustal extension, and doming about a basement-cover boundary, New England Appalachians. American Journal of Science, 292, 359–397.
Giaramita, M.S. and Duy, H.W., 1991, Buffering in the assemblage staurolite-Alumino-silicate-Biotite-Garnet-Chlorite. Journal of Metamorphic Geology 9, 363–378.
Gibson, R.L., 1992, Sequential, syndeformational porphyroblast growth during Hercynian low-pressure/high-temperature metamorphism in the Canigou massif, Pyrenees. Journal of Metamorphic Geology, 10, 637–650.
Harrison, T.M., Spear, F.S., and Heizler, M.T., 1989, Geochronologic studies in central New England II: Post-Acadian hinged and differentiated uplift. Geology, 17, 185–189.
Hayward, N., 1991, Orogenic processes, deformation and mineralization history of portions of the Appalachian orogen, USA, based on microstructural analysis, Ph.D. thesis, James Cook University, Australia, 320 p.
Hayward, N., 1992, Microstructural analysis of the classic snowball garnets of southeast Vermont. Evidence for non-rotation. Journal of Metamorphic Geology, 10, 567–587.
Kim, H.S., 1998, Sigmoidal, staircase and spiral inclusion trails within porphyroblasts; their relationship to polymetamorphism. 14th Australia Geological Convention Abstract with Program, Townsville, July, 49, p. 249.
Kretz, R., 1983, Symbols for rock-forming minerals. American Mineralogist, 68, 277–279.
Lang, H.M., 1991, Quantitative interpretation of within-outcrop variation in metamorphic assemblage in staurolite-kyanite-grade metapelites, Baltimore, Maryland. Canadian Mineralogist, 29, 655–671.
Lang, H.M. and Dunn, G.R., 1990, Sequential porphyroblast growth during deformation in a low-pressure metamorphic terrain, Orrs Island-Harpswell Neck, Maine. Journal of Metamorphic Geology, 8, 199–216.
Lee, H., 2000. Significance of systematic changes on crenulation aymmetries within metasediments across the Ogcheon Supergroup in the Goesan area, southern Korea. Geosciences Journal, 4, 115–134.
Loomis T.P., 1986, Metamorphism of pelites: calculation of equilibrium assemblages and numerical simulation of the crystallization of garnet. Journal of Metamorphic Geology, 4, 201–229.
Moecher, D.P., 1999, The distribution, style and intensity of Alleghanian metamorphism in south-central New England: Petrologic evidence from the Pelham and Willimantic Domes. Journal of Geology, 107, 449–471.
Moecher, D.P. and Wintsch, R.P., 1994, Deformation-induced reconstitution and local resetting of mineral equilibria in polymetamorphism gneisses: tectonic and metamorphic implications. Journal of Metamorphic Geology, 12, 523–538.
Passchier, C.W., Throuw, R.A.J., Zwart, H.J. and Vissers, R.L.M., 1992, Porphyroblast rotation: eppur si mouve?. Journal of Metamorphic Geology, 10, 283–294.
Reed, R.M. and Williams, M.L., 1989, Petrofabric kinematic indicators in the northern portion of the Pelham domes, north-central Massachusetts. Geological Society of America Abstracts with programs, 20, p. 60.
Robinson P, 1967, Gneiss domes and recumbent folds of the Orange area, west central Massachusetts. Guidebook New England Intercollegiate Geological Conference, Amherst, Massachusetts, 17–47.
Robinson, P. and Tucker, R.D., 1996, The “Acadian” in central New England: New problems based on U-Pb ages of igneous zircon and metamorphic monazite and sphene. Geological Society of America, 31th Annual Northern section Abstract with program, Buffalo, March, 4222, p. A94.
Robinson, P., Tucker, R.D., Gromet, L.P., Ashenden, D.D., Williams, M.L., Reed, R.M. and Peterson, V.L., 1992, The Pelham Dome, Central Massachusetts: stratigraphy, geochronology, structure and metamorphism. In: Robinson, P. and Brady, J.B. (eds.), Guidebook for Field Trips in the Connecticut Valley Region of Massachusetts and Adjacent States: New England Intercollegiate Geological Conference. Amherst, Massachusetts, 1, 132–169.
Schulz, B., 1990, Prograde-retrograde P−T−t-deformation path of Austroalpine micaschists during Variscan continental collision (Eastern Alps). Journal of Metamorphic Geology, 8, 629–643.
Schumacher, J.C., Schumacher, R., and Robinson, P. (1989) Acadian metamorphism in central Massachusetts and southwestern New Hampshire: evidence for contrasting P−T trajectories. In: Daly, J.C., Cliff, R.A. and Yardley, B.W.D. (eds.), Evolution of Metamorphic Belts. Geological Society of London, Special Publication, 43, 453–460.
Spear, F.S., 1993, Metamorphic phase equilibria and pressure-temperature-time path. Mineralogical Society of America, Monograph Series. Washington DC, 799 p.
Spear, F.S. and Harrison, T.M., 1989, Geochronologic studies in central New England I: Evidence for pre-Acadian metamorphism in eastern Vermont. Geology, 17, 181–184.
Spiess, R. and Bell, T.H., 1996, Microstructural controls on sites of metamorphic reaction: a case study of the inter-relationship between deformation and metamorphism. European Journal of Mineralogy, 8, 165–186.
Tracy, R.J., Robinson, P. and Thompson, A.B., 1976, Garnet composition and zoning in the determination of temperature and pressure of metamorphism. American Mineralogist, 61, 762–775.
Tucker, R.D. and Robinson, P., 1990, Age and setting of the Bronson Hill magmatic arc: A re-evaluation based on U−Pb zircon ages in southern New England. Geological Society of American Bulletin, 102, 1404–1419.
Vernon, R.H., 1976, Metamorphic processes: George Allen and Unwin, London, 247 p.
Williams, M.L., 1994, Sigmoidal inclusion trails, punctuated fabric development and interactions between metamorphism and deformation. Journal of Metamorphic Geology, 12, 1–21.
Williams, P.F. and Jiang, D., 1999, Rotating garnet. Journal of Metamorphic Geology, 17, 367–378.
Wintsch, R.P., 1985, The possible effects of deformation on chemical processes in metamorphic fault zones. In: Thompson, A.B. and Rubie, D.C. (es.), Metamorphic reactions: Kinetics, Texture, and Deformation. Springer-Verlag, New York, p. 251–268.
Wintsch, R.P., Sutter, J.F., Kunk, M.J., Aleinikoff, J.N. and Dorais, M.J., 1992, Contrasting P−T−t paths: thermochronologic evidence for a late Paleozoic final assembly of the Avalonian composite terrane in the New England Appalachians. Tectonics, 11, 672–689.
Zartman, R.E., 1988, Three decades of geological studies in the New England Appalachians. Geological Society of American Bulletin, 100, 1168–1180.
Zen, E-an, Goldsmith, R., Ratcliffe, N.L., Robinson, P. and Stanley, R.S., 1983, Bedrock geological map of Massachusetts (1∶250,000). U.S. Geological Survey, Washington D.C.
Zhang, J., Dirks, P.H.G.M. and Passchier, C.W., 1994, Extensional collapse and uplift in a polymetamorphic granulite terrain in the Archaean and Palaeoproterozoic of north China. Precambrian Research, 67, 37–57.
Zwart, H.J., 1962, On the determination of polymetamorphic mineral associations and its application to the Bosost area (central Pyreness). Geologische Rundschau, 52, 38–65.
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Kim, H.S. A new approach to distinguishing multiple phases of metamorphism and deformation: application to the Northeastern Appalachian. Geosci J 5, 65–84 (2001). https://doi.org/10.1007/BF02910174
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DOI: https://doi.org/10.1007/BF02910174