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1by Helmstaedt, Herwart, Eisbacher, G. H., McGregor, J. A.Get access
Published in Canadian Journal of Earth Sciences (1981)
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Article in Journal/Newspaper -
2by Helmstaedt, Herwart, Eisbacher, G. H., McGregor, J. A.Get access
Published in Canadian Journal of Earth Sciences (1979)
Get access
Article in Journal/Newspaper