Westphalian-Stephanian macrofloras of the Southern Pennines Basin, UK

• Autorzy: Cleal C.J.
• Języki publikacji: EN

Abstrakty

EN

The southern part of the Pennines Basin (Warwickshire, South Staffordshire and Wyre Forest coalfields) has a condensed succession of middle Langsettian to upper Asturian or lower Cantabrian strata. The Langsettian-Duckmantian part of the succession is in a grey coal-bearing facies, in which many coal seams have become vertically accreted, and in which macrofloras of the Laveineopteris loshii Subzone, Lonchopteris rugosa Zone and Neuropteris semireticulata Subzone can be recognised. Species composition and Total Species Richness diversity curves compare well with those from the Central Pennines Basin to the north, suggesting that they represent an essentially unified area of vegetation. Red beds of the Etruria Formation appear in the lower Bolsovian Substage (stratigraphically lower in the marginal southernmost part of the basin). The Etruria Formation macrofloras are not abundant, but where they do occur are not significantly less species-rich than in the contemporaneous grey coal-bearing sequence in the Central Pennines. The Etruria Formation macrofloras belong to the N. semireticulata Subzone, and there is no evidence of the overlying Laveineopters rarinervis Subzone that would indicate a late Bolsovian age. The grey, mainly arenaceous Halesowen Formation unconformably overlies the Etruria Formation, and yields low- diversity macrofloras that probably indicate the late Asturian Dicksonites plueckenetii Subzone. The succeeding red-beds of the Salop Formation yield even lower diversity macrofloras, but there is some evidence that they may belong to the Cantabrian O. cantabrica Zone. A comparison of these new data with the evidence from the Central Pennines helps confirm the robustness of Total Species Richness as a proxy for environmental change in Late Carboniferous palaeotropical coal-bearing sequences.

Słowa kluczowe

EN

Carboniferous; palaeobotany; biostratigraphy; diversity-analysis

• Wydawca: Instytut Nauk Geologicznych PAN
• Czasopismo: Studia Geologica Polonica
• Rocznik: 2008
• Tom: Vol. 129
• Strony: 25--41
• Opis fizyczny: bibliogr. 33 poz. tab., wykr.

Twórcy

autor

Cleal C.J.

• Department of Biodiversity & Systematic Biology, National Museum Wales, Cathays Park, Cardiff CF10 3NP, UK.,

Bibliografia

• Arber, E. A. N., 1914. On the fossil floras of the Wyre Forest, with special reference to the geology of the coal field and its relation ships to the neighbouring coal measure areas. Philosophical Transactions of the Royal Society of London, Series B, 204: 364-445.
• Arber, E. A. N., 1916. On the fossil floras of the Coal Measures of south Staffordshire. Philosophical Transactions of the Royal Society of London, Series B, 208: 127-155.
• Besly, B. M., 1988. Palaeogeographic implications of late Westphalian to early Permian red-beds, Central England. In: Besly, M. M. & Kelling, G. (eds), Sedimentation in a synorogenic basin complex. The Upper Carboniferous of North west England. Blackie, Glasgow and London: 200-221.
• 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.
• Besly, B. M. & Turner, P., 1983. Origin of red beds in a moist tropical climate (Etruria Formation, Upper Carboniferous, UK). Special Publications of the Geological Society, London, 11: 131-147.
• Bridge, D. McC., Carney, J. N., Lawley, R. S. & Rushton, A. W. A., 1998. Geology of the country around Coven try and Nuneaton. British Geological Survey, Keyworth (Memoir): 185 pp.
• Burek, C. V. & Cleal, C. J., 2005. The life and work of Emily Dix (1904-1972). In: Bowden, A. J., Burek, C. V. & Wilding, R (eds), History of palaeobotany: selected essays. Geological Society of London, Special Publication, 241: 181-196.
• Cleal, C. J., 1986. Fossil plants of the Severn Coal field and their biostratigraphical significance. Geological Magazine, 123: 553-568.
• Cleal, C. J., (ed.), 1991. Plant fossils in Geological investigation: the Palaeozoic. Ellis Horwood, Chichester: 233 pp.
• Cleal, C. J., 2005. The Westphalian macrofloral record from the cratonic Central Pennines Basin, UK. Zeitschrift der Deutschen Gesellschaft für Geowissenschaften, 156: 387-410.
• Cleal, C. J., 2007. The Westphalian-Stephanian macrofloral record from the South Wales Coalfield, UK. Geological Magazine, 144: 465-486.
• Cleal, C. J. & Thomas, B. A., 1994. Plant fossils of the British Coal Mea sures. Palaeontological Association, London (Field Guide to Fossils No. 6): 222 pp.
• Cope, K. G. & Jones, A. R. L., 1970. The Warwickshire Thick Coal and its mining environment.
• Compte rendu 6e Congres International de la Géologie et de Stratigraphie du Carbonifere (Sheffield, 1967), 2: 585-598.
• Crookall, R. 1955-1976. Fossil plants of the Carboniferous rocks of Great Britain [Second Section]. Memoirs of the Geological Survey of Great Britain, Palaeontology, 4: 1-1004.
• Dix, E., 1935. Note on the flora of the high est "Coal Mea sures" of Warwickshire. Geological Magazine, 72: 555-557.
• Dix, E., 1941. The general sequence of strata in the Warwickshire Coal field (with detailed descriptions of some of the more important sections). Proceedings of the Geological Society of London, 1382: 8-14.
• Fulton, I. M. & Williams, H., 1988. Palaeogeographical change and controls on Namurian and Westphalian A/B Sedimentation at the southern margin of the Pennine Basin, Central England. In: Besly, M. M. & Kelling, G. (eds), Sedimentation in a synorogenic basin complex. The Upper Carboniferous of Northwest England. Blackie, Glasgow and London: 179-199.
• Galtier, J., Scott, A. C., Powell, J. H., Glover, B. W. & Wa ter, C. N., 1992. Anatomically preserved conifer-like stems from the Upper Carboniferous of England. Proceedings of the Royal Society of London, Series B, 247: 211-214.
• Glover, B. W., Powell, J. H. & Waters, C. N., 1993. Etruria Formation (Westphalian C) palaeoenvironments and volcanicity on the southern margins of the Pennine Basin, south Staffordshire, England. Journal of the Geological Society, 150: 737-750.
• Jongmans, W. J., 1940. Die Kohlenfelder von Gross Britannien. Mededelingen van de Geologische Stichting, 1938: 15-222.
• Kidston, R., 1888. On the fossil flora of the Staffordshire Coal Fields. Transactions of the Royal Society of Edinburgh, 35: 317-335.
• Kidston, R., 1891. On the fossil flora of the Staffordshire Coal Fields. Transactions of the Royal Society of Edinburgh, 36: 63-98.
• Kidston, R., 1914. On the fossil flora of the Staffordshire Coal Fields. Part III. The fossil flora of the Westphalian Series of the South Staffordshire Coal Field. Transactions of the Royal Society of Edinburgh, 50: 73-190.
• Kidston, R., 1923-1925. Fossil plants of the Carboniferous rocks of Great Britain. Memoirs of the Geological Survey of Great Britain, Palaeontology, 2: 1-670.
• Kidston, R., Cantrill, T. C. & Dixon, E. E. L., 1917. The Forest of Wyre and Titterstone Clee Hill Coal Fields. Transactions of the Royal Society of Edinburgh, 51: 999-1084.
• Powell, J. H., Glover, B. W. & Waters, C. N., 2000a. Geology of the Birmingham area. British Geological Survey, Keyworth (Memoir): 132 pp.
• Powell, J. H., Chisholm, J. I., Bridge, D. M., Rees, J. G., Glover, B. W. & Besly, B. M., 2000b. Stratigraphical frame work for Westphalian to Early Permian red-bed successions of the Pennine Basin. Research Report of the British Geological Survey, R/00/01: 1-28.
• 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, 10: 1-82.
• Wagner, R. H., 1984. Megafloral zones of the Carboniferous. Compte rendu 9e Congres International de Stratigraphie et de Géologie du Carbonifere (Washington, 1979), 2: 109-134.
• Waters, C. N., Glover, B. W. & Powell, J. H., 1994. Structural synthesis of S Staffordshire, UK: implications for the Variscan evolution of the Pennine Basin. Journal of the Geological Society, London, 151: 697-713.
• Whitehead, T. H. & Pocock, R. W., 1947. Dudley and Bridgnorth. Geological Survey of Great Britain, London (Memoir): 226 pp.
• Wood, A., 1936. New records of plants from the Coal Measures in North Wales. Proceedings of the Liverpool Geological Society, 17, 29-44.