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Clay mineralogy of onshore UK Carboniferous mudrocks

Published online by Cambridge University Press:  09 July 2018

D. A. Spears*
Affiliation:
Centre for Analytical Sciences, Department of Chemistry, University of Sheffield, Dainton Building, Sheffield S3 7HF, UK

Abstract

The Carboniferous in Britain is diverse and this is reflected in the clay mineral assemblages. Several factors affecting the assemblages are identified including climate, rates of weathering and erosion, source rocks in the hinterland, preservation of palaeosols, whether the source rocks are nearby or distant, sorting during transportation, the presence of altered volcanic ash-falls in the depositional environment and the extent of burial diagenesis. There are temporal and geographic variations in the clay mineral assemblages in the mudrocks as a result of these controls. There are also clay-rich rocks that differ from the normal mudrocks and a knowledge of the clay mineralogy of these is a necessary prerequisite to a full understanding of their origins. Mudrocks falling in this category, and described below, include bauxitic clays, flint clays, fragmental clay rocks, tonsteins and K-bentonites and various palaeosols.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2006

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References

Ashley, G.H. (1928) Bituminous coalfields of Pennsylvania, pt. 1. Pennsylvania Topographic and Geologic Survey, Series 4, Bulletin, M-6, 24 pp.Google Scholar
Barnsley, G.B., Clowes, J.M. & Fowler, W. (1966) Kaolin tonsteins in the Westphalian of North Staffordshire. Geological Magazine, 103, 508–521.CrossRefGoogle Scholar
Besly, B.M. (1987) Palaeogeographic implications of late Westphalian to early Permian red-beds, Central England. Pp. 200–221 in: Sedimentation in a Synorogenic Basin Complex: the Upper Carboniferous of Northwest Europe (Besly, B.M. and Keeling, G., editors). Blackie, Glasgow and London.Google Scholar
Besly, B.M. & Cleal, C.J. (1997) Upper Carboniferous stratigraphy of the West Midlands (UK) revised in the light of borehole geophysical logs and detrital compositional suites. Geological Journal, 32, 85–118.3.0.CO;2-O>CrossRefGoogle Scholar
Blackmore, R. (1995) Low-grade metamorphism in the upper Palaeozoic Munster Basin, southern Ireland. Irish Journal of Earth Sciences, 14, 115–133.Google Scholar
Bohor, B.F. & Triplehorn, D.M. (1993) Tonsteins: altered volcanic ash layers in coal-bearing sequences. Geological Society of America, Special Paper, 285, 44 pp.Google Scholar
Bouroz, A. (1967) Correlations des tonsteins d'origine volcanique entre les bassins houillers de Sarre-Lorraine et du Nord-Pas-de-Calais. Comptes Rendus Series D, Academie des Sciences, Paris, 264, 2729–2732.Google Scholar
Brindley, G.W. & Robinson, K. (1946) The structure of kaolinite. Mineralogical Magazine, 27, 242–253.Google Scholar
Brindley, G.W. & Robinson, K. (1947) X-ray studies of some kaolinitic fireclays. Transactions of the British Ceramic Society, 46, 49–62.Google Scholar
Clayton, G. (1989) Vitrinite reflectance data from the Kinsale Harbour–Old Head of Kinsale area, southern Ireland, and its bearing on the interpretation of the Munster Basin. Journal of the Geological Society, London, 146, 611–616.CrossRefGoogle Scholar
Cockett, A.S. (1966) Clay mineralogy of Irish Namurian sediments. Unpublished PhD thesis, University of Southampton, UK.Google Scholar
Cope, J.C.W., Ingham, J.K. & Rawson, P.F. (1992) Atlas of Palaeogeography and Lithofacies. Memoir No 13, Geological Society, London, 153 pp.Google Scholar
Creaney, S. (1980) Petrographic texture and vitrinite reflectance variation on the Alston Block, north-east England. Proceedings of the Yorkshire Geological Society, 42, 553–580.Google Scholar
Diessel, C.F.K. (1985) Tuffs and tonsteins in the Coal Measures of New South Wales, Australia. 10th Congres International de Stratigraphie et de Geologie du Carbonifere, Madrid, 1983, 4, 197–210.Google Scholar
Dopita, M. & Kralik, J. (1977) Coal tonsteins in Ostrava-Karvina coal basin. (Uhelme tonsteiny Ostravsko-Karvinskeho reviru). Ostrava, Czechoslovakia, 213 pp.Google Scholar
Eden, R.A., Elliot, R.W., Elliot, R.E. & Young, B.R. (1963) Tonstein bands in the coalfield of the East Midlands. Geological Magazine, 100, 47–58.Google Scholar
Fisher, R.V. & Schmincke, H.U. (1984) Pyroclastic Rocks. Springer Verlag, Berlin, 472 pp.Google Scholar
Flint, S.S., Aitken, J.F. & Hampson, G.J. (1995) The application of sequence stratigraphy to coal-bearing, fluvial successions: Implications for the UK Coal Measures. Pp. 1–16 in: European Coal Geology (Whateley, M.K.G. and Spears, D.A., editors). Special Publication, 82, Geological Society, London.Google Scholar
Forsman, N.F. (1984) Misuse of the term 'bentonite' for ash beds of Devonian age in the Appalachian basin. Discussion and reply. Geological Society of American Bulletin, 95, 124–125.Google Scholar
Francis, E.H. (1961) Thin beds of graded kaolinitized tuff and tuffaceous siltstones in the Carboniferous of Fife. Bulletin of the Geological Survey of Great Britain, 17, 191–215.Google Scholar
Garrels, R.M. & Christ, C.L. (1965) Solutions, Minerals and Equilibria. Harper and Row, New York, 450 pp.Google Scholar
George, T.N., Johnson, G.A.L., Mitchell, M., Prentice, J.E., Ramsbottom, W.H.C., Sevastopulo, G.D. & Wilson, R.B. (1976) . correlation of Dinantian Rocks in the British Isles. Special Report No 7, Geological Society, London, 87pp.Google Scholar
Gill, W.D., Khalaf, F.I. & Massoud, F.I. (1977) Clay minerals as an index of metamorphism of the carbonate and terrigenous rocks of the South Wales Coalfield. Sedimentology, 24, 675–691.Google Scholar
Grainger, P. & Witte, G. (1981) Clay mineral assemblages of Namurian shales in Devon and Cornwall. Proceedings of the Ussher Society, 5, 168–178.Google Scholar
Grimshaw, R.W., Heaton, E. & Roberts, A.L. (1945) Refractory Clays. Tranactions of the British Ceramic Society, 44, 69–92.Google Scholar
Hampson, G.J., Elliott, T. & Flint, S.S. (1996) Critical application of high resolution sequence stratigraphic concepts to the Rough Rock Group Upper Carboniferous of Northern England. Pp. 221–246 in: High Resolution Sequence Stratigraphy Innovations and Applications (Howell, J.A. and Aitken, J.F., editors). Special Publication, 104, Geological Society, London.Google Scholar
Hampson, G.J., Elliott, T. & Davies, S.J. (1997) The application of sequence stratigraphy to Upper Carboniferous fluvio-deltaic strata of the onshore UK and Ireland: Implications for the southern North Sea. Journal of the Geological Society, London, 154, 719–733.Google Scholar
Hetfeld, K. & Clayton, G. (1998/9) The effect of strain on illite and chlorite crystallinity: preliminary results from the Munster Basin. In: Abstracts of the 42nd Annual Irish Geological Research Meeting, Trinity College, Dublin. Irish Journal of Earth Sciences, 17, 123–140.Google Scholar
Hicks, D. & Nagelschmidt, G. (1943) The chemical and X-ray diffraction analysis of the roof and clod of some South Wales coal seams and of the mineral matter in coal. Medical Research Council Special Report, 244, 153–186.Google Scholar
Highler, D.E. (1982) Fireclay. Mineral Resources Consultative Committee, Mineral Dossier, 24, HMSO, London, 71 pp.Google Scholar
Hoehne, K. (1953) Kaolinkristalle und Quarzneubild-ungen im indischen Steinkohlen. Chemie der Erde, 16, 211–222.Google Scholar
Hoehne, K. (1964) Zur Entstehung und stratigraphschen Verbreitung der Kaolin-Kohlentonsteine in den wichtigsten Kohlenrevieren der Erde. Fortschrilte in der Geologie von Rheinland und Westfalen, 12, 487–517.Google Scholar
Hower, J.C. and Gayer, R.A. (2002) Mechanisms of coal metamorphism: case studies from Paleozoic coalfields. International Journal of Coal Geology, 50, 215–245.Google Scholar
Hubbard, F.H., Dhir, R.K. & Ellis, M.S. (1985) Pulverised fuel ash for concrete: Compositional characterisation of United Kingdom PFA. Cement and Concrete Research, 15, 185–198.Google Scholar
Huff, W.D. (1983) Misuse of the term 'bentonite' for ash beds of Devonian age in the Appalachian basin. Discussion and reply. Geological Society of America Bulletin, 94, 681–683.Google Scholar
Huff, W.D. & Morgan, D.J. (1990) Stratigraphy, mineralogy and tectonic setting of Silurian K-bentonites in southern England and Wales. Proceedings, 9th International Clay Conference, Strasbourg 1989 Farmer, V.C. and Tardy, Y., editors). Scientifique Geologie Memoirs, 88, 33–42.Google Scholar
Keller, W.D. (1967) Flint clays and flint-clay facies. Clays and Clay Minerals, 16, 113–128.Google Scholar
Kelm, U. (1986) Mineralogy and illite crystallinity of the pelitic Devonian and Carboniferous strata of north Devon and western Somerset. Proceedings of the Ussher Society, 6, 338–343.Google Scholar
Kelm, U. & Robinson, D. (1989) Variscan regional metamorphism in north Devon and west Somerset. Proceedings of the Ussher Society, 7, 146–151.Google Scholar
Kimpe, W.F.M. (1966) Occurrence, development and distribution of Upper Carboniferous tonsteins in the paralic West German and Dutch coalfields, and their use as stratigraphical marker horizons. Mededelingen van de Geologische Stichting, Nieuwe Serie, 18, 3–10.Google Scholar
Lapparent J., de (1936) Boehmite and diaspore in the bauxitic clays of Ayrshire. Summary of Progress, Geological Survey Great Britain, for 1934, pt. 2, pp. 1–7.Google Scholar
Meere, P.A. (1994) Sub-greenschist facies metamorphism from the Variscides of SW Ireland: an early syn-extensional peak thermal event. Journal of the Geological Society, London, 152, 511–521.CrossRefGoogle Scholar
Merriman, R.J. (2006) Clay mineral assemblages in British Lower Palaeozoic mudrocks. Clay Minerals, 41, 473–512.Google Scholar
Monro, S.K., Loughman, F.C. & Walker, M.C. (1983) The Ayrshire Bauxitic Clay: an allochthonous deposits. Pp. 47–58 in: Residual Deposits: Surface-related Weathering Processes and Materials (Wilson, R.C.L., editor). Special Publications 11, Geological Society of London.Google Scholar
Moore, D.M. & Reynolds, R.C. (1997) X-ray Diffraction and the Identification and Analysis of Clay Minerals. 2nd edition. Oxford University Press, New York, 378 pp.Google Scholar
Moore, L.R. (1964) The microbiology, mineralogy and genesis of a tonstein. Proceedings of the Yorkshire Geological Society, 34, 235–292.Google Scholar
Perrin, R.M.S. (1971) The Clay Mineralogy of British Sediments. Mineralogical Society, London, 247 pp.Google Scholar
Petrascheck, W. (1942) Vulkanische Tuff im Karbon von Oberschlesien und Westfalen. Neues Jahrbuch für Mineralogie und Geologie, 86, 299–313.Google Scholar
Primmer, T.J. (1985) The pressure-temperature history of the Tintagel district, Cornwall: Metamorphic evidence on the tectonic evolution of the area. Proceedings of the Ussher Society, 6, 218–233.Google Scholar
Ramsbottom, W.H.C., Calver, M.A., Eagar, R.M.C., Hodson, F., Holliday, D.W., Stubblefield, C.J. & Wilson, R.B. (1978) A correlation of Silesian Rocks in the British Isles. Geological Society of London, Special Report No 10, 82 pp.Google Scholar
Richardson, G. & Francis, E.H. (1971) Fragmental clayrock (FCR) in coal-bearing sequences in Scotland and north-east England. Proceedings of the Yorkshire Geological Society, 38, 229–260.Google Scholar
Ridgeway, J.M. (1982) Common clay and shale. Mineral Resources Consultative Committee, Mineral Dossier 22, HMSO, London, 163 pp.Google Scholar
Riley, N.J., Claoue-Long, J., Higgins, A.C., Owens, B., Spears, A., Taylor, L. & Varker, W.J. (1993) Geochronometry and geochemistry of the European mid-Carboniferous boundary global stratotype proposal, Stonehead Beck, North Yorkshire, UK. Annales de la societe geologique de Belgique, T.116, 275–289.Google Scholar
Rippon, J.H. (1996) Sand body orientation, palaeoslope analysis and basin-fill implications in the Westphalian A-C of Great Britain. Journal of the Geological Society, London, 153, 881–900.Google Scholar
Rippon, J.H. and Spears, D.A. (1989) The sedimentology and geochemistry of the sub-Clowne cycle (Westphalian B) of north-east Derbyshire, UK. Proceedings of the Yorkshire Geological Society, 47, 181–198.Google Scholar
Robinson, D. & Wright, V.P. (1987) Ordered illite-smectite and kaolinite-smectite: pedogenic minerals in a Lower Carboniferous palaeosol sequence, South Wales. Clay Minerals, 22, 109–118.CrossRefGoogle Scholar
Robinson, D., Wade, D.N. & Burnett, R. (1987) Correlation between organic and inorganic thermal maturation indices in Palaeozoic basins of Britain. Pp. 235–244 in: Petroleum Geology of North West Europe (Brooks, J., and Glennie, K., editors). Graham and Trotman, London.Google Scholar
Roen, J.B. & Hosterman, J.W. (1982) Misuse of the term 'bentonite' for ash beds of Devonian age in the Appalachian basin. Geological Society of America Bulletin, 93, 921–925.2.0.CO;2>CrossRefGoogle Scholar
Rogers, G.S. (1914) The occurrence and genesis of a persistent parting in a coal bed of Lance Formation. American Journal of Science, 37, 4 ser., 299–304.Google Scholar
Salter, D.L. (1964) New occurrences of tonsteins in England and Wales. Geological Magazine, 101, 517–519.Google Scholar
Schmitz-Dumont, W. (1894) Die Saarbrucker Tonsteine. Tonindustrie-Zig, 18, 714.Google Scholar
Sezgin, H.I. (1982) The occurrence and formation of kaolinite and other minerals in Coal Measures rocks from the East Pennine Coalfield. Unpublished PhD thesis, University of Sheffield, UK.Google Scholar
Smart, G. & Clayton, T. (1985) The progressive illitization of interstratified illite-smectite from Carboniferous sediments of northern England and its relationship to organic maturity indicators. Clay Minerals, 20, 455–466.Google Scholar
Spears, D.A. (1980) Towards a classification of shales. Journal of the Geological Society, London, 137, 125–129.Google Scholar
Spears, D.A. (1987a) Mineral matter in coals, with special reference to the Pennine Coalfields. Pp. 171–185 in: Coal and Coal-bearing Strata: Recent Advances (Scott, A.C., editor). Special Publication, 32, Geological Society, London.Google Scholar
Spears, D.A. (1987b) Clay minerals and sedimentary facies in the Upper Carboniferous Pennine Basin, England: a review. Proceedings of the International Clay Conference, Denver, 1985. Clay Minerals Society, Bloomington, Indiana, pp. 105–110.Google Scholar
Spears, D.A. (2000) Role of clay minerals in UK coal combustion. Applied Clay Science, 16, 87–95.Google Scholar
Spears, D.A. (2003) Bentonites and tonsteins. Pp. 61–63 in: Encyclopedia of Sediments and Sedimentary Rocks (Middleton, G.V.. editor). Kluwer Academic Publishers, Dordecht, Boston and London.Google Scholar
Spears, D.A. & Amin, M.A. (1981a) Geochemistry and mineralogy of marine and non-marine Namurian black shales from the Tansley Borehole, Derbyshire. Sedimentology, 28, 407–417.Google Scholar
Spears, D.A. & Amin, M.A. (1981b) A mineralogical and geochemical study of turbidite sandstones and interbedded shales, Mam Tor, Derbyshire. Clay Minerals, 16, 333–345.Google Scholar
Spears, D.A. & Kanaris-Sotiriou, R. (1979) A geochemical and mineralogical investigation of some British and other European tonsteins. Sedimentology, 26, 407–425.Google Scholar
Spears, D.A. & Lyons, P.C. (1995) An up-date on British tonsteins. Pp. 137–146 in: European Coal Geology (Whateley, M.K.G. and Spears, D.A., editors). Special Publication 82, Geological Society, London.Google Scholar
Spears, D.A. & Sezgin, H.I. (1985) Mineralogy and geochemistry of the G. subcrenatum Marine Band and associated sediments, Langsett, South Yorkshire. Journal of Sedimentary Petrology, 55, 570–578 Google Scholar
Spears, D.A., Kanaris-Sotiriou, R., Riley, N. & Krause, P. (1999) Namurian bentonites in the Pennine Basin, UK – Origin and magmatic af finities. Sedimentology, 46, 385–401.Google Scholar
Strauss, P.G. (1971) Kaolin rich rocks in the East Midlands coalfields of England. Compte Rendu 6e Congres International de Stratigraphie et de Geologie du Carbonifere, Sheffield 1967, 4, 1519–1532.Google Scholar
Taylor, R.K. & Spears, D.A. (1970) The breakdown of British Coal Measures Rocks. International Journal of Rock Mechanics and Mining Science, 17, 481–501.Google Scholar
Trewin, N.H. (1968) Potassium bentonites in the Namurian of Staffordshire. Proceedings of the Yorkshire Geological Society, 37, 73–91.Google Scholar
Trewin, N. & Holdsworth, B.K. (1972) Further K-bentonites from the Namurian of Staffordshire. Proceedings of the Yorkshire Geological Society, 39, 87–88.Google Scholar
Wade, D.N. & Robinson, D. (1987) Diagenetic studies of Lower Carboniferous mudstones from the Alston Block and Northumberland Trough, Northern England. Pp. 235–244 in: Petroleum Geology of North West Europe (Brooks, J. and Glennie, K., editors). Graham and Trotman, London.Google Scholar
Walkden, G.M. (1972) The mineralogy and origin of interbedded clay wayboards in the Lower Carboniferous of the Derbyshire Dome. Geological Journal, 8, 143–160.Google Scholar
Walkden, G.M. (1974) Palaeokarstic surfaces in Upper Visean (Carboniferous) Limestones of the Derbyshire Block, England. Journal of Sedimentary Petrology, 44, 1232–1247.Google Scholar
Weaver, C.E. (1953) Mineralogy and petrology of some Ordovician K-bentonites and related limestones. Geological Society of America Bulletin, 64, 921–943.Google Scholar
Williams, E.G., Bergenback, R.E., Falla, W.S. & Vdegawa, S. (1968) Origin of some Pennsylvanian underclays in Western Pennsylvania. Journal of Sedimentary Petrology, 38, 1179–1193.Google Scholar
Williamson, I.A. (1961) Tonsteins: A possible additional aid to coalfield correlation. Mining Magazine, 104, 9–14.Google Scholar
Wilson, G.V. (1922) The Ayrshire Bauxitic clay. Memoir of the Geological Survey, Scotland, 28 pp.Google Scholar
Wilson, M.J. (1965) The origin and geological significance of the South Wales underclays. Journal of Sedimentary Petrology, 35, 91–99.Google Scholar
Wilson, M.J., Bain, D.C., McHardy, W.J. & Berrow, M.L. (1972) Clay mineral studies on some Carboniferous sediments in Scotland. Sedimentary Geology, 8, 137–150.Google Scholar
Wright, V.P. (1982) Calcrete palaeosols from the Lower Carboniferous Llanelly Formation, South Wales. Sedimentary Geology, 33, 1–33.Google Scholar
Wright, V.P. (1990) Equatorial aridity and climatic oscillations during the early Carboniferous, southern Britain. Journal of the Geological Society, London, 147, 359–263.Google Scholar
Wright, V.P., Vanstone, S.D. & Robinson, D. (1991) Ferrolysis in Arundian alluvial palaeosols: evidence of a shift in the early Carboniferous monsoonal system. Journal of the Geological Society, London, 148, 9–12.Google Scholar