Abstract
Sm–Nd dating of minerals in several Norwegian country-rock eclogites reported here indicates that the rocks crystallized ∼425 Myr ago. The isotopic composition of both Nd and Sr in these eclogites suggests that they formed from much older crustal rocks. The high-pressure metamorphism of which the eclogites are relics probably involved subduction of the continental Baltic plate as it was overridden by the Greenland plate during the Caledonian orogeny.
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References
Bryhni, I., Krogh, E. & Griffin, W. L. N. Jb. Miner. Abh. 130, 49–68 (1977).
Krogh, E. Nature 267, 17–19 (1977).
Brueckner, H. K. Norsk Geol. Tidsskr. 59, 141–153 (1979).
Pidgeon, R. T. & Råhaim, A. Norsk Geol. Tidsskr. 52, 241–256 (1972).
McDougall, I. & Green, D. H. Norsk Geol. Tidsskr. 44, 183–196 (1964).
O'Hara, M. J., Richardson, S. W. & Wilson, G. Contr. Miner. Petrol. 32, 48–68 (1971).
Lappin, M. A. & Smith, D. C. J. Petrol. 19, 530–584 (1978).
O'Nions, R. K., Hamilton, P. J. & Evensen, N. M. Earth planet. Sci. Lett. 34, 13–22 (1977).
DePaulo, D. J. & Wasserburg, G. J. Geophys. Res. Lett. 3, 249–252 (1976); 3, 743–746 (1976).
Krogh, T. E., Mysen, B. O. & Davis, G. L. Carnegie Inst. Wash. Yearb. 73, 575–576 (1975).
Brueckner, H. K. Am. J. Sci. 267, 1195–1212 (1969).
Brueckner, H. K. Contr. Miner. Petrol. 60, 1–15 (1977).
Carswell, D. A., Krogh, E. & Griffin, W. L. (in preparation).
Ernst, W. G. Fortschr. Miner. 54, 192–222 (1977).
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Griffin, W., Brueckner, H. Caledonian Sm–Nd ages and a crustal origin for Norwegian eclogites. Nature 285, 319–321 (1980). https://doi.org/10.1038/285319a0
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DOI: https://doi.org/10.1038/285319a0
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