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Pb-Zn and minor U mineralization at Tyndrum, Scotland

Published online by Cambridge University Press:  05 July 2018

Richard A. D. Pattrick
Richard A. D. Pattrick*
Affiliation:
Department of Geology, University of Manchester, Manchester M13 9PL
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Abstract

The Tyndrum Pb-Zn mineralization occurs as veins and vein breccias in NE-SW trending fractures associated with the Tyndrum-Glen-Fyne fault. The major minerals are quartz, galena, and sphalerite with minor chalcopyrite and baryte. Tetrahedrite (sometimes silver-and cadmium-rich), pyrargyrite, marcasite, and pyrite occur as small inclusions (< 100 µm) in the galena-rich veins. Sphalerite formed early in the depositional sequence, mainly in breccias, with increasing amounts of galena and chalcopyrite deposited in the later vein stages of mineralization. Uraniferous veins post-date the main Pb-Zn mineralization and contain uraninite, calcite, baryte, galena, sphalerite, chalcopyrite, argentite, chalcocite, tetrahedrite, and safflorite.

Fluid inclusion studies reveal that the mineralizing solutions contained c.20 wt. % equivalent NaCl + KCl, had an Na/K ratio of 3 : 1 and were boiling during mineral precipitation.

The Tyndrum fault controlled the upward flow of the hydrothermal solutions and its intersection with fractures in quartzites favoured the siting of the veins. The depositional sequence is explained by an increase in temperature during the mineralizing episode. The uraniferous veins may be a late oxidized stage of the main Pb-Zn mineralization.

Keywords

Pb-Zn mineralizationuranium veinsTyndrumScotlandfluid inclusions
Type
Research Article
Information
Mineralogical Magazine , Volume 49 , Issue 354 , December 1985 , pp. 671 - 681
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1985

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References

Amcoff, O. (1976) Neues Jahrb. Mineral. Mh. 247-61.Google Scholar
Arnorsson, S. (1978) Contrib. Mineral. Petrol. 66, 21-8.CrossRefGoogle Scholar
Barton, P. B., Bethke, P. M., and Roedder, E. (1977) Econ. Geol. 72, 1-25.CrossRefGoogle Scholar
Bethke, P. M., and Barton, P. B., (1971a) Ibid. 66, 140-63.CrossRefGoogle Scholar
Bethke, P. M., and Barton, P. B., (1971b) Am. Mineral. 56, 2034-9.Google Scholar
Bischoff, J. L., and Seyfreid, W. E., Jr. (1978) Am. J. Sci. 278, 838-60.CrossRefGoogle Scholar
Brown, P. R. L., and Ellis, A. J. (1970) Ibid. 269, 97-131.Google Scholar
Bush, P. R. (1980) 4th Australian Geological Congress, Hobart; Abstracts. Geol. Soc. Austral. 5.Google Scholar
Cambi, L., Elli, M., and Tangerini, I. (1966) Chim. Ind. (Milan), 48, 567-75.Google Scholar
Crerar, D. A., and Barnes, H. L. (1976) Econ. Geol. 71, 772-94.CrossRefGoogle Scholar
Darnley, A. G. (1962) Geol. Surv. GB Age Determination Report, 21.Google Scholar
Darnley, A. G., Smith, G. H., Chandler, T. R. D., and Preece, E. R. (1960) Geol. Surv. G.B. Age Determination Report, 13.Google Scholar
Davidson, C. F. (1966) Trans. Inst. Mining Metall. B, 75, 237-41.Google Scholar
Ellis, A. J. (1979) Chem. Geol. 25, 219-26.CrossRefGoogle Scholar
Ellis, A. J. and Mahon, W. A. J. (1977) Chemistry and Geo- thermal Systems. Academic Press, Inc. 392 pp.Google Scholar
Fleischer, M. (1975) Am. Mineral. 60, 489.Google Scholar
Frondel, C. (1958) Systematic mineralogy of uranium and thorium. US Geol. Surv., Bulletin 1064.Google Scholar
Halliday, L. B. (1962) Reports of Surveys at Tyndrum. On file at IGS, Edinburgh.Google Scholar
Harrison, R. K. (1956) Report on the preliminary survey of radioactivity in the Tyndrum mining area. Geol. Surv. GB Atomic Energy Division, Report No. 186.Google Scholar
Hemley, J. J., and Jones, W. R. (1964) Econ. Geol. 59, 539-67.CrossRefGoogle Scholar
Henley, R. W. (1973) Trans. Inst. Mining Metall. B, 82, 1–8.Google Scholar
Ludwig, K. Z., and Grauch, R. I. (1980) Econ. Geol. 75, 296-302.CrossRefGoogle Scholar
McLennan, S. M., and Taylor, S. R. (1979) Nature, 282, 247-50.CrossRefGoogle Scholar
Odernheimer, F. (1841) Trans. Highland Soc. 7, 541-56.Google Scholar
Orville, P. M. (1963) Am. J. Sci. 261, 201-37.CrossRefGoogle Scholar
Pattrick, R. A. D. (1978) Mineral Mag. 42, 286-8.CrossRefGoogle Scholar
Pattrick, R. A. D. (1981) The vein mineralization at Tyndrum, Scotland, and a study of substitutions in tetrahedrites. Ph.D. thesis, University of Strathclyde.Google Scholar
Pattrick, R. A. D. and Hall, A. J. (1983) Mineral. Mag. 47, 441-51.CrossRefGoogle Scholar
Pattrick, R. A. D., Coleman, M. L., and Russell, M. J. (1983) Mineral. Deposita. 18, 477-85.CrossRefGoogle Scholar
Petruk, W. (1971) Can. Mineral. 11, 196-231.Google Scholar
Philips, W. J. (1972) J. Geol. Soc. Lond. 128, 337-55.CrossRefGoogle Scholar
Raybould, J. G. (1974) Trans. Inst. Mining Metall. B, 88, 112-19.Google Scholar
Rich, R. A., Holland, H. D., and Petersen, U. (1977) Hydrothermal Uranium Deposits. Elsevier, 264 pp.Google Scholar
Richardson, S. W., and Powell, R. (1976) Scott. J. Geol. 12, 237-68.CrossRefGoogle Scholar
Riley, J. F. (1974) Mineral Deposita. 9, 117-24.CrossRefGoogle Scholar
Roedder, E., and Bodnar, R. J. (1980) Ann. Rev. Earth Planet. Sci. 8, 263-301.CrossRefGoogle Scholar
Russell, M. J. (1978) Trans. Inst. Mining Metall. B, 87, 167-71.Google Scholar
Russell, M. J. (1983) In Sediment Hosted Stratiform Lead-Zinc Deposits (Sangster, D. F., ed.). Short Course Handbook 8, MAC, 251-82.Google Scholar
Russell, M. J. and Samson, I. M. (1982) MDSG Meeting, University of Strathclyde, Abstracts, 4.Google Scholar
Russell, M. J., Solomon, M., and Walshe, J. L. (1981) Mineral. Deposita. 16, 113-27.CrossRefGoogle Scholar
Rye, R. O., and Haffty, J. (1969) Econ. Geol. 69, 468 81.Google Scholar
Sato, T. (1973) Geochem. J. 7, 245-70.CrossRefGoogle Scholar
Sawkins, F. J. (1969) Econ. Geol. 65, 613-17.CrossRefGoogle Scholar
Senior, A., and Leake, B. E. (1978) J. Petrol. 19, 584–825.CrossRefGoogle Scholar
Seyfreid, W. E., Jr., and Bischoff, J. F. (1979) Geochim. Cosmochim. Acta, 43, 1937-49.CrossRefGoogle Scholar
Steacy, H. R., and Kaiman, S. (1978) In Uranium Deposits. Their Mineralogy and Origin (Kimberley, M. M., ed.). Short Course Handbook, 3, MAC 107 39.Google Scholar
Steiner, A. (1970) Mineral. Mag. 37, 916-22.CrossRefGoogle Scholar
Thost, C. H. G. (1860) Proc. Geol. Soc. 421-8.Google Scholar
White, D. E., Hern, J. D., and Waring, G. A. (1963) U.S. Geol. Surv. Prof. pap. 440-F.Google Scholar
Wilson, G. V., and Flett, D. S. (1921) The lead, zinc, copper and nickel ores of Scotland. Mem. Geol. Surv. Scotland. Special Report on the mineral resources of Great Britain, 17.Google Scholar
Wilson, J. S. G., and Cadell, M. (1884) R. Phys. Soc. Edinb. 8, 189–207.Google Scholar