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F. Corfu & L. D. Ayres 1984. U-Pb ages and genetic significance of heterogeneous zircon populations in rocks from the Favourable Lake area, northwestern Ontario. Contributions to Mineralogy and Petrology 88, 86–101.
G. Davies , A. Gledhill & C. Hawkesworth 1985. Upper crustal recycling in southern Britain: evidence from Nd and Sr isotopes. Earth and Planetary Science Letters 75, 1–12.
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J. A. Evans 1991. Resetting of Rb-Sr whole-rock ages during Acadian low-grade metamorphism in North Wales. Journal of the Geological Society, London148, 703–10.
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S. B. Jacobsen & G. J. Wasserburg 1980. Sm-Nd evolution of chondrites. Earth and Planetary Science Letters 50, 139–55.
T. E. Krogh 1973. A low contamination method for the hydrothermal decomposition of zircon and extraction of U and Pb for isotopic age determinations. Geochimica et Cosmochimica Acta 37, 485–94.
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M. J. Le Bas 1972. Caledonian igneous rocks beneath central and eastern England. Proceedings of the Yorkshire Geological Society 39, 71–86.
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G. J. H. Oliver , F. Corfu & T. E. Kroch 1993. U-Pb ages from SW Poland: evidence for a Caledonian suture zone between Baltica and Gondwana. Journal of the Geological Society, London150, 355–69.
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N. J. Soper , B. C. Webb & N. J. Woodcock 1987. Late Caledonian (Acadian) transpression in North West England: timings, geometry and geotectonicsignificance. Proceedings of the Yorkshire Geological Society 46, 175–92.
J. S. Stacey & J. D. Kramers 1975. Approximation of terrestrial lead isotope evolution by a two-stage model. Earth and Planetary Science Letters 26, 207–21.
R. H. Steiger & E. Jäger 1977. Subcommission on geochronology: convention on the use of decay constants in geo- and cosmochronology. Earth and Planetary Science Letters 36, 359–62.
E. J. Thorogood 1990. Provenance of the pre-Devonian sediments of England and Wales: Sm-Nd isotopic evidence. Journal of the Geological Society, London147, 591–4.
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G. L. Wasserburg , S. B. Jacobsen , D. J. DePaolo , M. T. McCulloch & T. Wen 1981. Precise determination of Sm/Nd ratios, Sm and Nd isotopic abundances in standard solutions. Geochimica et Cosmochimica Acta 45, 2311–22.