Hostname: page-component-cd9895bd7-gvvz8 Total loading time: 0 Render date: 2024-12-18T21:48:03.057Z Has data issue: false hasContentIssue false
  • English
  • Français

Fluid Inclusion Studies on the Ecton Hill Copper Deposits, North Staffordshire

Published online by Cambridge University Press:  05 July 2018

R. Masheder  and
A. H. Rankin
R. Masheder
Affiliation:
Mining Geology Division, Department of Geology, Royal School of Mines, Imperial College, London SW7 2BP
A. H. Rankin
Affiliation:
Mining Geology Division, Department of Geology, Royal School of Mines, Imperial College, London SW7 2BP
Get access Rights & Permissions [Opens in a new window]

Abstract

Thermometric and D-ICP analysis of fluid inclusions in calcite and fluorite show that the fluids responsible for extensive carbonate-hosted copper mineralization in the Ecton Hill area were low-temperature (< 100 °C), high-salinity (19.5 to 23 wt. % NaCl equivalents) brines strongly enriched in calcium (mean Ca:Na wt. ratio = 1.9). Compared with the fluids responsible for classical ‘Mississippi Valley type’ lead-zinc deposits elsewhere in the south Pennine orefield, the Ecton ore-fluids were of lower temperature and slightly more enriched in potassium. Despite these subtle differences, the data are consistent with a basinal brine model for ore genesis in this western part of the orefield similar to that envisaged for the remainder of the orefield. These Ca-Na-K-Cl, copper-bearing brines were most probably derived from the Cheshire basin located to the west of the Derbyshire Dome.

Keywords

fluid inclusionsEcton Hill copper depositsnorth Staffordshire
Type
Petrology and Geochemistry
Information
Mineralogical Magazine , Volume 52 , Issue 367 , September 1988 , pp. 473 - 482
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1988

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

Aitkenhead, N., Chisholm, J.I., and Stevenson, I.P. (1985) Geology of the country around Buxton, Leek and Bakewell. Mere. Br. Geol. Surv. for Sheet 111. H.M.S.O., London, 168 pp.Google Scholar
Alderton, D.H.M., Thompson, M.J., Rankin, A.H., and Chryssoulis, S.L. (1982) Chem. Geol. 37, 203-13.CrossRefGoogle Scholar
Allen, P.M. (1982) Copper Mineralization in Great Britain. In Spec. Pubf. UNESCO-IGCP Projects 169 and 63, no. 1 (Jankovic, S. and Sillitoe, R.H., eds.) SGADept. Economic Geology, Belgrade Joint Publ., 266- 76.Google Scholar
Astrop, R. (1987) B.Sc. Thesis, Mining Geology, Imperial College, University of London.Google Scholar
Atkinson, P., Moore, J. McM., and Evans, A.M. (1982) Bull. B.R.G.M. Sect. 11, no. 2, 149-56.Google Scholar
Borisenko, A.S. (1977) Soviet Geol. and Geophys. 18, 18-19.Google Scholar
Brown, G.C., Ixer, R.I., Plant, J.A., and Webb, P.C. (1987) Trans. Inst. Mining Metal., Sect. B, 96, 65-76.Google Scholar
Carpenter, A.B., Trout, M.L., and Pickett, E.E. (1974) Econ. Geol. 69, 119-120..CrossRefGoogle Scholar
Critchley, M.F. (1979) Bull. Peak Distr. Mines Hist. Soc. 7, 177-91.Google Scholar
Davidson, C.F. (1966) Trans. Inst. Mining Metall, Sect. B, 84, 215-25.Google Scholar
Dunham, K.C. (1983) Ore Genesis in the English Pennines: a fluoritic subtype. In Proc. 2nd Internat. Conf. on Mississippi Valley type lead-zinc deposits (Kisvarsanyi, G. et al. eds.) Rolla, Missouri, Univ. Missouri Press, 86-112.Google Scholar
Ford, T.D. (1976) In Handbook of stratabound and stratiform ore deposits, 5 (K. H. Wolff, ed.) Elsevier, 161-95.Google Scholar
Ineson, P.R. and Ford, T.D. (1982) Mercian Geol. 8, 285-303.Google Scholar
Mostaghel, M.A. (1985) Ibid. 10, 27-38.Google Scholar
Mostaghel, M.A. and Ford, T.D. (1986) Ibid. 10, 209-24.Google Scholar
Ohle, E.L. (1980) Econ. Geol. 75, 161-72.CrossRefGoogle Scholar
Potter, R.W.I. (1977) J. Res. U.S. Geol. Surv. 5, 60-37.Google Scholar
Clynne, M.A., and Brown, D.L. (1978) Econ. Geol. 73, 284-5.Google Scholar
Rankin, A.H. and Criddle, A. (1985) Trans. Inst. Mining MetaIl., Sect. B, 94, 126-32.Google Scholar
Robey, J. and Porter, L. (1972) The copper and lead mines of Ecton Hill. Staffordshire. Moorland Publishing Co., Harlington, England.Google Scholar
Robinson, B.W. and Ineson, P.R. (1979) Trans. Inst. Mining Metall., Sect. B, 88, B107–17.Google Scholar
Roedder, E. (1984) Fluid Inclusions. Min. Soc. Am., Reviews in Mineralogy, 12, 644 pp.Google Scholar
Rogers, P.J. (1977) Trans. Inst. Mining MetaU., Sect. B, 86, 128-32.Google Scholar
Sangster, D.F. (1983) Mississippi Valley type deposits: a geological melange. In Proc. 2nd lnternat. Conf. on Mississippi Valley type leadzinc deposits (G. Kisvarsanyi et al., eds.) Rolla, Missouri, Univ. Missouri Press, 7-19.Google Scholar
Shepherd, T.J., Rankin, A.H., and Alderton, D.H.M. (1985) A Practical Guide to Fluid Inclusion Studies. Blackie and Sons, Glasgow, 239 pp.Google Scholar
Thompson, M.J. and Walsh, J.N. (1983) A Handbook of ICP Spectrometry. Blackie and Sons, Glasgow, 280 pp.Google Scholar
Truesdell, A.H. (1984) Chapter 3. In FluidMineral Equilibria in Hydrothermal Systems. Revs. in Econ. Geol. 1 (Henley, R.W. et al., eds.), Econ. Geol. Publishing Co., El Paso, Texas, 31-44.Google Scholar