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Sulphur isotope variations in diagenetic pyrite from core plug to sub-millimetre scales

Published online by Cambridge University Press:  09 July 2018

P. McConville ,
A. J. Boyce ,
A. E. Fallick ,
B. Harte  and
E. M. Scott
P. McConville
Affiliation:
Isotope Geosciences Unit, ScottishUniversities Research and Reactor Centre, East Kilbride, Glasgow G75 0QF
A. J. Boyce
Affiliation:
Isotope Geosciences Unit, ScottishUniversities Research and Reactor Centre, East Kilbride, Glasgow G75 0QF
A. E. Fallick*
Affiliation:
Isotope Geosciences Unit, ScottishUniversities Research and Reactor Centre, East Kilbride, Glasgow G75 0QF
B. Harte
Affiliation:
Department of Geology & Geophysics, University of Edinburgh, West Mains Road, Edinburgh EH9 3JW
E. M. Scott
Affiliation:
Department of Statistics, University of Glasgow, Glasgow G12 8QQ, UK
*
*E-mail: [email protected]
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Abstract

Sulphur isotope ratio measurements (δ34S) of diagenetic pyrite are commonly used to identify S sources and mechanisms of sulphide formation in basinal sediments. This study reports such data for a diagenetic pyrite nodule from the Brent Group sandstones of the northern North Sea at three sampling scales: 50 cm (core subsample), 500 μm (laser microprobe) and 50 μm (ion microprobe). Similar δ34S variations are found by the laser and ion microprobe techniques. There is a very wide range in δ34S (<−10% to >+50%) within the nodule and isotopically heavy S (δ34S >+20%) is common at all scales. The nodule δ34S distribution does not fit a Rayleigh fractionation pattern. The laser microprobe sampling at 100–500 μm scales seems to be adequate to characterize S isotope variations in this material.

Keywords

S isotope ratiospyritebasinal sedimentsion microprobelaser probe
Type
Research Article
Information
Clay Minerals , Volume 35 , Issue 1 , March 2000 , pp. 303 - 311
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2000

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References

Berner, R.A. (1970) Sedimentary pyrite formation. Am. J. Sci. 268, 268–1.Google Scholar
Berner, R.A. (1984) Sedimentary pyrite formation: an update. Geochim. Cosmochim. Ada, 48, 48–605. Boyce, A.J., Fallick, A.E., McConville, P., Brint, J.F. & Marshall, J. (1993) Patterns of δ34S and precipitation mechanisms for North Sea diagenetic pyrite. Terra Abs. 5, 368.Google Scholar
Canfield, D.E. & Raiswell, R. (1991) Pyrite formation and fossil preservation. Pp. 337–387 in: Taphonomy: Releasing the Data Locked in the Fossil Record (Allison, P.A. & Briggs, D.E. editors). Topics in Geobiology, 9. Plenum Press, New York.Google Scholar
Canfield, D.E., Raiswell, R. & Bottrell, S. (1992) The reactivity of sedimentary iron minerals towards sulfide. Am. J. Sci. 292, 292–659.Google Scholar
Cannon, S.J.C, Giles, M.R., Whitaker, M.F., Please, P.M. & Martin, S.V. (1992) A regional reassessment of the Brent Group, UK sector, North Sea. Pp. 81-107 in: Geology of the Brent Group (Morton, A.C., Haszeldine, R.S., Giles, M.R. & Brown, S. editors). Geological Society, London. Spec. Publ. 61.Google Scholar
Chambers, L.A. & Trudinger, P.A. (1979) Microbiological fractionation of stable sulphur isotopes: a review and critique. Geomicrobiol. J. 1, 1–249.Google Scholar
Claypool, G.E., Holser, W.T., Kaplan, I.R., Sakai, H. & Zak, I. (1980) The age curves of sulfur and oxygen isotopes in marine sulfate and their mutual interpretation. Chem. Geol. 28, 28–199.Google Scholar
Crowe, D.E., Valley, J.W. & Baker, K.L. (1990) Microanalysis of sulphur isotope ratios and zonation by laser microprobe. Geochim. Cosmochim. Ada, 54, 54–2075.Google Scholar
Fallick, A.E., McConville, P., Boyce, A.J., Burgess, R. & Kelley, S.P. (1992) Laser microprobe stable isotope measurements on geological materials: some experimental considerations (with special reference to δ34S in sulphides). Chem. Geol. 101, 101–53.Google Scholar
Giles, M.R., Stevenson, S., Martin, S.V., Cannon SJ.C, Hamilton, P.I, Marshall, J.D. & Samways, G.M. (1992) The reservoir properties and diagenesis of the Brent Group: a regional perspective. Pp. 289–327 in: Geology of the Brent Group (Morton, A.C., Haszeldine, R.S., Giles, M.R. & Brown, S. editors). Geological Society, London. Spec. Publ. 61.Google Scholar
Goldhaber, M.B. & Kaplan, I.R. (1975) Controls and consequences of sulfate reduction rates in recent marine sediments. Soil Sci. 119, 119–42.Google Scholar
Johnson, R.A. & Bhattacharyya, G.K. (1992) Statistics: Principles and Methods, 2nd edition. John Wiley, New York.Google Scholar
Jørgensen, B.B., Isaksen, M.F. & Jannasch, H.W. (1992) Bacterial sulfate reduction above 100°C in deep-sea hydrothermal vent sediments. Science, 258, 258–1756.Google Scholar
Kalbfleisch, J.G. (1985) Probability and Statistical Inference, 2nd edition. Springer, New York.Google Scholar
Kelley, S.P. & Fallick, A.E. (1990) High precision spatially resolved analysis of δ34S in sulphides using a laser extraction technique. Geochim. Cosmochim. Ada, 54, 54–883.Google Scholar
Kelley, S.P., Fallick, A.E., McConville, P. & Boyce, A.J. (1992) High precision, high spatial resolution analysis of sulfur isotopes by laser combustion of natural sulfide materials. Scan. Micr. 6, 6–129.Google Scholar
McConville, P., Fallick, A.E., Boyce, A.J., Brint, J.F. & Marshall, J. (1993) Sulphur isotope characterisation of North Sea pyrite. Terra Abs. 5, 374.Google Scholar
McConville, P., Fallick, A.E. & Boyce, A.J. (1997) Origin of isotopically heavy sulphur in North Sea pyrite. Terra Abs. 9, 541.Google Scholar
Ohmoto, H. & Rye, R.O. (1979) Isotopes of sulfur and carbon. Pp. 509–567 in: Geochemistry of Hydrothermal Ore Deposits, 2nd edition (Barnes, H.L., editor). John Wiley, New York.Google Scholar
Orr, W.L. (1974) Changes in sulfur content and isotope ratios of sulfur during petroleum maturation–study of Big Horn basin paleozoic oils. Bull. Am. Assoc. Petrol. Geol, 58, 58–2295.Google Scholar
Prosser, D.J., Daws, J.A., Fallick, A.E. & Williams, B.P.J. (1994). The occurrence and δ34S of authigenic pyrite in Middle Jurassic Brent Group Sediments. J. Petrol. Geol. 17, 17–407.Google Scholar
Raiswell, R. (1997) A geochemical framework for the application of stable sulphur isotopes to fossil pyritization. J. Geol. Soc. 154, 154–343.Google Scholar
Raiswell, R. & Canfield, D.E (1998) Sources of iron for pyrite formation in marine sediments. Am. J. Sci. 298, 298–219.Google Scholar
Robinson, B.S. & Kusakabe, M. (1975) Quantitative preparation of sulfur dioxide for δ34S/δ32S analyses from sulfides by combustion with cuprous oxide. Anal. Chem. 47, 47–1179.Google Scholar
Schwarcz, H.P. & Burnie, S.W. (1973) Influence of sedimentary environments on sulfur isotope ratios in clastic rocks: a review. Mineral. Deposita (Berl.), 8, 8–264.Google Scholar
Stott, J.F.D. & Herbert, B.N. (1986) The effect of pressure and temperature on sulphate-reducing bacteria and the action of biocides in oilfield water injection systems. J. Appl. Baderiol. 60, 60–57.Google Scholar
Struijk, A.P. & Green, R.T. (1991) The Brent Field, Block 211/29, UK North Sea. Pp. 63-72 in: United Kingdom Oil and Gas Fields, 25th Anniversary Volume (Abbotts, I.L., editor). Geological Society, London, Memoir 14.Google Scholar
Thode, H.G. (1991) Sulphur isotopes in nature and the environment: an overview. Pp. 1–26 in: Stable Isotopes: Natural and Anthropogenic Sulphur in the Environment (Krouse, H.R. & Grinenko, V.A., editors). SCOPE 43. John Wiley, New York.Google Scholar