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The Coalgate Bentonite. A ferriferous-beidellite deposit from Canterbury, New Zealand

Published online by Cambridge University Press:  09 July 2018

J. R. Carlson  and
K. A. Rodgers
J. R. Carlson
Affiliation:
Department of Geology, University of Auckland, Auckland 1, New Zealand
K. A. Rodgers
Affiliation:
Department of Geology, University of Auckland, Auckland 1, New Zealand
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Abstract

The Coalgate Bentonite deposit has been formed by the alteration of cryptocrystalline basaltic ash erupted in Upper Miocene to Pliocene times and deposited in a freshwater lake on a land surface of earlier tholeiitic flows. Physical and chemical analysis shows the bentonite to consist essentially of non-swelling (Ca2+ and Mg2+) ferriferous-beidellite with minor ferriferous montmorillonite. The process of montmorillonitization probably involved a crystal chemical structural reorganization without solution or precipitation and occurred in a mildly alkaline environment in which initial reducing conditions become oxidizing.

Type
Research Article
Information
Clay Minerals , Volume 10 , Issue 3 , July 1974 , pp. 153 - 172
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1974

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References

Anderson, D.M. & Reynolds, R.C. (1966) Am. Miner. 51, 1443.Google Scholar
Anderson, D.M. & Reynolds, R.C. (1967) J. sedim. Petrol. 37, 966.Google Scholar
Biscaye, P.E. (1965) Bull. geol. Soc. Am. 76, 803.Google Scholar
Bonnatti, E. (1967) Researches in Geochemistry 2 (Ed. by P. H. Abelson), p. 453. John Wiley & Sons, New York.Google Scholar
Carlson, J.R. (1971) Thesis, University of Auckland.Google Scholar
Carlson, J.R. & Rodgers, K.A. (1973) Tane, 19, 221.Google Scholar
Carozzi, A.V. (1960) Microscopic Sedimentary Petrography. John Wiley & Sons, New York.Google Scholar
Croft, J.B. & Zeissink, H.E. (1968) J. geol. Soc. Aust. 14, 239.CrossRefGoogle Scholar
Dapples, E.C. (1967) Developments in Sedimentology, Vol. 8. Elsevier, New York.Google Scholar
Greene-Kelly, R. (1953) J. Soil Sci. 4, 233.CrossRefGoogle Scholar
Greene-Kelly, R. (1957) In : The Differential Thermal Investigation of Clays (Ed. by R.C. Mackenzie), Chap. V. The Mineralogical Society, London.Google Scholar
Gregg, D.R. (1964) Geological Map of New Zealand, Sheet 18. Department of Scientific and Industrial Research, Wellington, New Zealand.Google Scholar
Grim, R.E. (1953) Clay Mineralogy. McGraw-Hill, New York.Google Scholar
Grim, R.E. & Kulbicki, G. (1961) Am. Miner. 46, 1329.Google Scholar
Gruner, J.W. (1940) Econ. Geol. 35, 867.Google Scholar
Jackson, M.L. (1956) Soil Chemical Analysis—Advanced Course. University of Wisconsin.Google Scholar
Jackson, M.L. & Mackenzie, R.C. (1964) Soil Clay Mineralogy (Ed. by C.I. Rich and G.W. Kunze). Chapel Hill, University of North Carolina Press.Google Scholar
Jackson, M.L. & Sherman, G.D. (1953) Adv. Agron. 5, 219.Google Scholar
Knebel, H.J., Kelly, J.C. & Whetten, J.T. (1968) J. sedim. Petrol. 38, 600.Google Scholar
Lerbekmo, J.F. (1968) Can. J. Earth Sci. 5, 1505.Google Scholar
Macewan, D.M.C. (1961) In: The X-ray Identification and Crystal Structures of Clay Minerals (Ed. by G. Brown), Chap. IV. The Mineralogical Society, London.Google Scholar
Marshall, B.R. (1961) Bull. geol. Soc. Am. 72, 1493.CrossRefGoogle Scholar
Millot, G. (1949) Géol. Appi, et Prospect. Minière, 2 (2-4), 352.Google Scholar
Molloy, M.W.G. & Kerr, P.F. (1961) Am. Miner. 46, 583.Google Scholar
Muller, G. (1967) Developments in Sedimentology, Vol. 8. Elsevier, New York.Google Scholar
Nelson, C.S. & Cochrane, R.H.A. (1970) Tane, 16, 151.Google Scholar
Pettuohn, F.J. (1956) Sedimentary Rocks. Harper and Row.Google Scholar
Ritchie, J.A. & Gregg, D.R. (1965) Proc. 8th Commonwealth Mining Metallurgy Congr. 7 (208), 1.Google Scholar
Ritchie, J.A., Gregg, D.R. & Ewart, A. (1969) N.Z. Jl Geol. Geophys. 12, 583.Google Scholar
Ross, C.S. & Hendricks, S.B. (1945) Prof. Pap. U.S. geol. Surv. 205-B.Google Scholar
Shultz, L.G. (1966) Clays Clay Miner. In: Proc. 13th Conf. (Ed. by W.F. Bradley and S.W. Bailey), p. 275. Pergamon Press, London.Google Scholar
Slaughter, M. & Early, J.W. (1965) Spec. Pap. geol. Soc. Am. 83.Google Scholar
Smith, D.G.W. (1967) Can. Miner. 9, 141.Google Scholar
Trauth, N. & Lucas, J. (1967) Bull. Grpefr. Argiles, 19, 11.Google Scholar
Weaver, C.E. (1953) Bull. geol. Soc. Am. 64, 921.Google Scholar