Hostname: page-component-586b7cd67f-dlnhk Total loading time: 0 Render date: 2024-11-23T08:31:51.840Z Has data issue: false hasContentIssue false
  • English
  • Français

Pyrophyllite-bearing flint clay from the Cambewarra area, New South Wales

Published online by Cambridge University Press:  09 July 2018

F. C. Loughnan  and
C. R. Ward
F. C. Loughnan
Affiliation:
School of Applied Geology, University of New South Wales, Box 1. P.O. Kensington, Sydney, N.S.W., Australia
C. R. Ward
Affiliation:
School of Applied Geology, University of New South Wales, Box 1. P.O. Kensington, Sydney, N.S.W., Australia
Get access Rights & Permissions [Opens in a new window]

Abstract

A thick deposit of flint clay in the Permian I llawarra Coal Measures of the southern part of the Sydney Basin, New South Wales, is described. The flint clays which have affinities with those of the Pennsylvanian of North America and with the kaolin coal tonsteins of the Westphalian, are associated with red-brown claystones that contain in addition to hematite, an abundance of a regular mixed layer clay mineral. Pyrophyllite generally forms a minor constituent only of the flint clays but in one part of the deposit it is more abundant than kaolinite. Although there are many puzzling aspects concerning the origin of the deposit, evidence suggests that the kaolinite and the pyrophyllite in the flint clays are detrital.

Type
Research Article
Information
Clay Minerals , Volume 9 , Issue 1 , July 1971 , pp. 83 - 95
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1971

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

Beneslavsky, S.J. (1959) Acta Geol. Acad. Sci. Hung. 6, 55.Google Scholar
Biscaye, P.E. (1965) Bull. geol. Soc. Am. 76, 803.Google Scholar
Brown, G. (1961) The X-ray Identification and Crystal Structures of Clay Minerals. G. Brown, editor, Chapter 13, p. 475. The Mineralogical Society, London.Google Scholar
Deer, W.A., Howie, R.A. & Zussmann, J. (1962) Rock Forming Minerals, Vol. 3 Longmans, London.Google Scholar
Diessel, C.F.K. (1965) Max Richter Festschrift, Clausthal-Zellerseld, 149.Google Scholar
Grim, R.E. (1968) Clay Mineralogy p. 557 2nd Ed. McGraw Hill, New York.Google Scholar
Harper, L.F. (1915) Geol. Survey N.S.W., Memoir 7 N.S.W. Dept. Mines. Sydney.Google Scholar
Hemley, J.J. & Jones, W.R. (1964) Econ. Geol. 59, 538.Google Scholar
Loughnan, F.C. (1962) Neues Jahrb. Miner. Abh. 99, 29.Google Scholar
Loughnan, F.C. (1963) J. geol. Soc. Austral. 10, 177.CrossRefGoogle Scholar
Loughnan, F.C. (1966) J. sedim. Petrol. 36, 1016.Google Scholar
Loughnan, F.C. (1970) J. sedim. Petrol. 40, 822.Google Scholar
Mielenz, R.C., Schieitz, N.C. & King, M.E. (1953) Clays and clay minerals. 2nd Conf. Nat. Acad. Sect. 327, 285.Google Scholar
Millot, G. (1964) Geologie des Argiles p. 383, Maison et Cie, Paris.Google Scholar
Raam, A. (1969) J. geol. Soc. Austral. 16, 366.Google Scholar
Reed, B.L. & Hemley, J.S. (1966) U.S. geol. Surv. Prof. Paper 550C, 162.Google Scholar
Wilson, G.V. (1922) The Ayrshire Bauxitic Clay. Mem. geol. Surv. Scotland, p. 8.Google Scholar