Hostname: page-component-848d4c4894-pjpqr Total loading time: 0 Render date: 2024-06-30T07:14:45.440Z Has data issue: false hasContentIssue false
  • English
  • Français

Charnockitic and Related Cordierite-Bearing Rocks from Dangin, Western Australia

Published online by Cambridge University Press:  01 May 2009

Rex T. Prider
Rex T. Prider*
Affiliation:
Department of Geology, University of Western Australia
Get access Rights & Permissions [Opens in a new window]

Vi. summary

A series of charnockitic rocks and associated cordierite-bearing rocks from Western Australia has been described and compared with charnockitic rocks from other localities. This charnockitic suite is considered to be a series of basic intrusions into an older series of paraschists. It has, in places, been considerably contaminated by assimilation of the aluminous metasediments and in such cases is now represented by cordierite-bearing rocks. The basic charnockitic rocks and their contaminated equivalents have been subsequently invaded, under deep-seated conditions by granitic magma or emanations, and now appear as recrystallized remnants of the original masses. They have suffered extensive granitization which has yielded the acid charnockites (hypersthene-alkali felspar gneisses) in which the hypersthene is considered to have been derived from the older hypersthene-bearing basic charnockites. In view of the similarity to the Indian and Antarctic charnockites it appears possible that the charnockitic rocks of these areas are of similar origin, and that charnockite (hypersthene granite) rather than being the result of crystallization from a magma, is due to the granitization of older hypersthene-bearing rocks. If charnockite is of magmatic origin then it is most probable that this magma was of palingenetic origin and that the hypersthene is a relict from the earlier rocks and not the product of crystallization of the charnockite magma. Dunn (1942, p. 23) considers that the evidence afforded by Indian rocks is not opposed to the view that the hypersthene gneisses (charnockites) are the product of partial or complete palingenesis of very deep-seated rocks which had lost their water content.

Type
Research Article
Information
Geological Magazine , Volume 82 , Issue 4 , August 1945 , pp. 145 - 172
Copyright
Copyright © Cambridge University Press 1945

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

VIII. LIST OF WORKS TO WHICH REFERENCE IS MADE

Aurousseau, M., 1926. Analyses of Three Australian Rocks. Proc. Linn. Soc. N.S.W., li, 614–626.Google Scholar
Bowen, N. L., 1928. The Evolution of the Igneous Rocks. Princeton.Google Scholar
Crookshank, H., 1938. The Western Margin of the Eastern Ghats in Southern Jeypore. Rec. Geol. Surv. India, 73, pt. 3, 398–436.Google Scholar
Dunn, J. A., 1942. Granite and magmation and metamorphism. Econ. Geol., xxxvii, 231–8.10.2113/gsecongeo.37.3.231CrossRefGoogle Scholar
Groves, A. W., 1935. The Charnockite Series of Uganda, British East Africa. Quart. Journ. Geol. Soc, xci, 150–207.CrossRefGoogle Scholar
Henry, N. F. M., 1935. Some data on the iron-rich hypersthenes. Min. Mag., 24, 221–6.Google Scholar
Hess, H. H., 1941. Pyroxenes of common mafic magmas, part 2. Amer. Min., 26, 573–594.Google Scholar
Holland, T. H., 1900. The Charnockite Series, a group of Archean hypersthenic rocks in Peninsular India. Mem. Geol. Surv. India, xxxviii.Google Scholar
Holmes, A., 1928. Nomenclature of Petrology. London.Google Scholar
Prider, R. T., 1940. Cordierite-anthophyllite rocks associated with spinel-hypersthenites from Toodyay, Western Australia. Geol. Mag., lxxvii, 364–382.CrossRefGoogle Scholar
Prider, R. T., 1941. The Contact between the Granitic rocks and the Cardup Series at Armadale. Journ. Roy. Soc. West. Aust., xxvii, 27–55.Google Scholar
Prider, R. T., 1944. The Petrology of part of the Toodyay District. Journ. Roy. Soc. West. Aust., xxviii for 1941–2, 83–137.Google Scholar
Prider, R. T., 1945. Granitic Rocks from Canning Dam. Journ. Roy. Soc. West. Aust., xxix (for1942–3), 137–149.Google Scholar
Prider, R. T., 1945. Sapphirine from Dangin, Western Australia. Geol. Mag., lxxxii, 49–54.10.1017/S0016756800077955CrossRefGoogle Scholar
Read, H. H., 1935. The Gabbros and associated Xenolithic Complexes of the Haddo House District, Aberdeenshire. Quart. Journ. Geol. Soc, xci, 591–638.Google Scholar
Simpson, E. S. The Minerals of Western Australia (unpublished).Google Scholar
Stillwell, F. L., 1918. The Metamorphic Rocks of Adelie Land. Section 1. Aust. Antarctic Exp., 1911–14, iii, pt. 1.Google Scholar
Tilley, C. E., 1921. The Granite Gneisses of the Southern Eyre Peninsula (South Australia), and their Associated Amphibolites. Quart. Journ. Geol. Soc, lxxvii, 75–134.10.1144/GSL.JGS.1921.77.01-04.06CrossRefGoogle Scholar
Tilley, C. E., 1936. Enderbite, a new member of the Charnockite Series. Geol. Mag., lxxiii, 312–16.Google Scholar
TrÖger, W. E., 1935. Spezielle Petrographie der Eruptivgesteine. Berlin.Google Scholar
Tyrrell, G. W., 1926. Principles of Petrology. London.Google Scholar
Vogt, J. H. L., 1924. Physical Chemistry of the Magmatic Differentiation of Igneous Rocks. Vidensk.-selsk. Skrift. Kristiania, i, No. 15, p. 52.Google Scholar
Vredenburg, E. W., 1918. Considerations regarding a possible relationship between the Chamockites and the Dharwars. Journ. Asiatic. Soc. Bengal, n.s., vol. xiv, p. 433.Google Scholar
Walker, T. L., and Collins, W. H., 1907. Petrological study of some rocks from the Hill Tracts, Vizagapatam District, Madras Presidency. Rec Geol. Surv. India, xxxvi, 1–18.Google Scholar
Washington, H. S., 1916. The Charnockite Series of Igneous Rocks. Amer. Journ. Sci., 41, 323–338 10.2475/ajs.s4-41.244.323CrossRefGoogle Scholar