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Uralites and uralitization in the ultramafic belt of southern New Caledonia

Published online by Cambridge University Press:  01 May 2009

K. A. Rodgers
Affiliation:
Department of Geology, University of Auckland, Private Bag, Auckland 1, New Zealand

Summary

Chemical examination of uralites and their parent pyroxenes from associated eucrites and bronzitites indicate that the alteration can proceed by diverse paths and yield differing actinolites. Alteration in eucrites can be interpreted as occurring in a near closed system but in the bronzitites an external source of Ca and Al is required.

Type
Articles
Copyright
Copyright © Cambridge University Press 1973

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References

Lacroix, A. 1942. Les péridotites de la Nouvelle Calédonie; leurs serpentines et leurs gites de nickel et de cobalt. Les gabbros qui les accompagnent. Mém. Acad. Sci. Inst. Fr. 66, 143 pp.Google Scholar
Leake, B. E. 1968. A catalogue of analysed calciferous and subcalciferous amphiboles together with their nomenclature and associated minerals. Spec. Pap. geol. Soc. Am. 98, 210 pp.Google Scholar
Oliver, T. A. 1951. The effect of uralitization upon the chemical composition of the Sudbury norite. Am. Miner. 36, 421–9.Google Scholar
Patterson, J. H. 1965. The thermal disintegration of crocidolite in air and in vacuum. Mineralog. Mag. 35, 31–7.Google Scholar
Phllips, R. 1963. The recalculation of amphibole analyses. Mineralog. Mag. 33, 701–11.Google Scholar
Thayer, T. P. 1963. The Canyon Mountain Complex, Oregon and the alpine mafic magma stem. Prof. Pap. U.S. Geol. Surv. 475C, 82–5.Google Scholar
Thayer, T. P. 1967. Chemical and structural relations of ultramafic and feldspathic rocks in alpine intrusive complexes, pp. 222–39. In Wyllie, P. J. (Ed.): Ultramafic and related rocks. John Wiley, New York.Google Scholar
Whittaker, E. J. W. 1968. Classification of the amphiboles. Proc. 5th General Meeting, Int. Mineralog. Ass. Cambridge, 232–42.Google Scholar