Abstract
IN the course of a comprehensive study of the opaque mineral sands of New Zealand, the occurrence of thorium-containing minerals of medium density has been noted in the Westport area. Dr. C. O. Hutton, of Stanford University, California, has identified the principal minerals responsible as thorium-bearing sphene and the epidote allanite (private communication).
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References
Nicholson, D. S., Ilmenite Deposits, in N.Z. Dominion Laboratory Circular (1949).
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MARTIN, W. Thorium-bearing Minerals in New Zealand. Nature 178, 1476 (1956). https://doi.org/10.1038/1781476a0
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DOI: https://doi.org/10.1038/1781476a0
