Architecture, paleosols and cyclicity of the Middle- Late Pennsylvanian proximal fluvial system (Nyřany Member, Pilsen Basin, Czech Republic)


Authors: Lojka R, Rosenau NA, Sidorinova T, Strnad L

Published in: Bulletin of Geosciences, volume 91, issue 1; pages: 111 - 140; Received 12 March 2014; Accepted in revised form 4 December 2015; Online 23 February 2016

Keywords: alluvial cycles, perennial braided streams, Vertisol, tree trunk silicification, Pennsylvanian,

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Photopanel of the western face of the Kaznějov quarry showing detailed drawing of strata organization, architectural components and bounding surfaces



The Nyřany Member in the Pilsen Basin records the evolution of a broad paleotropical alluvial plain that preserves amalgamated lenticular to sheet sandstone bodies separated by basin-wide floodplains. Facies and architectural element analysis in conjunction with well-log correlation was employed in order to reconstruct fluvial system stacking patterns and decipher the controls responsible for the preserved fluvial architectures and identify the possible influence of allogenic processes on basin fill architectures. The main architectural components identified include: 1) sheet-like and lenticular pebbly to cobbly conglomerate thalweg fill representing the lowermost portion of channels that are preferentially preserved; 2) inclined gravel-sand and sandy strata of barforms and rarely preserved (3) mudstone units representing floodplains and abandoned channel fills. These architectural elements combine to form a hierarchy of alluvial cycles represented by channel-bar systems (3-10 m thick), channel-belts (4-15 m thick) and stacked channel-belt complexes (10-35 m thick). Autogenic processes of lateral migration and local and regional avulsion of braided channels of intermediate sinuosity (1.5) controlled the formation of the smaller scale cycles. While the geometry of stacked channel belt complexes (sandbodies) appear to be driven by variations in subsidence rates, their cyclic alternation with extensive floodplains is considered to be related to allogenic processes of variable seasonality of precipitation, which affected sedimentation rates and water-table level in the basin. Their maximum periodicity of 140 k.y. indicate that eccentricity paced changes of Earth’s orbit may be a driving force controlling climate stability in the Pennsylvanian paleotropics.


Adams, J.S., Kraus, M.J. & Wing, S.L. 2011. Evaluating the use of weathering indices for determining mean annual precipitation in the ancient stratigraphic record. Palaeogeography, Palaeoclimatology, Palaeoecology 309, 358-366.View article

Allen, J.R.L. 1983. Studies in fluviatile sedimentation: bars, bar-complexes and sandstone sheets (low-sinuosity braided streams) in the brownstones (L. Devonian), Welsh Borders. Sedimentary Geology 22, 237-293.View article

Allen, J.P. & Fielding, C.R. 2007. Sedimentology and stratigraphic architecture of the Late Permian Betts Creek Beds, Queensland, Australia. Sedimentary Geology 202, 5-34.View article

Allen, J.P., Fielding, C.R., Gibling, M.R. & Rygel, M.C. 2011. Fluvial response to paleo-equatorial climate fluctuations during the late Paleozoic ice age. Geological Society of America Bulletin 123(7-8), 1524-1538.View article

Ashmore, P. E. 1993. Anabranch confluences kinetics and sedimentation processes in gravel-braided streams, 129-146. In Best, J.L. & Bristow, C.S. (eds) Braided Rivers. Special Publication 75, Geological Society Publishing House, Bath.

Atchley, S.C., Nordt, L.C. & Dworkin, S.I. 2004. Eustatic control on alluvial sequence stratigraphy: a possible example from the Cretaceous-Tertiary transition of the Tornillo Basin, Big Bend National Park, west Texas, U.S.A. Journal of Sedimentary Research 74, 391-404.View article

Bashforth, A.R., Drábková, J., Opluštil, S., Gibling, M.R. & Falcon-Lang, H.J. 2011. Landscape gradients and patchiness in riparian vegetation on a middle Pennsylvanian braided-river plain prone to flood disturbance (Nýřany Member, Central and Western Bohemian Basin, Czech Republic). Review of Paleobotany and Palynology 163, 153-189.View article

Best, J.L., Ashworth, P.J., Bristow, C.S. & Roden, J. 2003. Three-dimensional sedimentary architecture of a large, mid-channel sand braid bar, Jamuna River, Bangladesh. Journal of Sedimentary Research 76(5), 731-770.View article

Birgenheier, L.P., Fielding, C.R., Rygel, M.C., Frank, T.D. & Roberts, J. 2009. Evidence for dynamic climate change on sub 106-year scales from the late Paleozoic glacial record, Tamworth Belt, New South Wales, Australia. Journal of Sedimentary Research 79(2), 56-82.View article

Blum, M.D. & Tornqvist, T.E. 2000. Fluvial response to climate and sea-level: a review and look forward. Sedimentology 47, 1-48.View article

Bridge, J.S. 1993a. Description and interpretation of fluvial deposits. Sedimentology 40, 801-810.View article

Bridge, J.S. 1993b. The interaction between channel geometry, water flow, sediment transport, erosion and deposition in braided rivers, 13-71. In Best, J.L. & Bristow, C.S. (eds) Braided Rivers. Special Publication 75, Geological Society Publishing House, Bath.View article

Bridge, J.S. & Leeder, M.R. 1979. A simulation model of alluvial stratigraphy. Sedimentology 26, 617-644.View article

Bridge, J.S. ? Mackey, S.D. 1993a. A revised alluvial stratigraphy model, 319-337. In Marzo, M. ? Puigdefabregas (eds) Alluvial sedimentation. International Association of Sedimentologists, Special Publication 17.

Bridge, J.S. ? Mackey, S.D. 1993b. A theoretical study of fluvial sandstone body dimensions, 213-236. In Flint, S.S. & Bryant, I.D. (eds) Geological modeling of hydrocarbon reservoirs. International Association of Sedimentologists, Special Publication 15.

Bridge, J.S. ? Tye, R.S. 2000. Interpreting the dimensions of ancient fluvial channel bars, channels and channel belts from wireline logs and cores. Bulletin of American Association of Petroleum Geologists 84(8), 1205-1228.

Bristow, C.S. & Best, J.L. 1993. Braided rivers: perspective and problems, 1-11. In Best, J.L. & Bristow, C.S. (eds) Braided Rivers. Special Publication 75, Geological Society Publishing House, Bath.

Bullock, P., Federoff, N., Jongerius, A., Stoops, G. & Tursina, T. 1985. Handbook for Soil Thin Section Description. 152 pp. Waine Research Publications, Wolverhampton.

Buol, S.W., Southard, R.J., Graham, R.C. & McDaniel, P.A. 2003. Soil Genesis and Classification. Fifth edition. 494 pp. Iowa State University Press, Ames.

Chamberlin, E.P. & Hajek, E.A. 2015. Interpreting paleo-avulsion dynamics from multistory sand bodies. Journal of Sedimentary Research 85, 82-94.View article

Cleal, C.J., James, R.M. & Zodrow, E.L. 1999. Variation in stomatal density in the Late Carboniferous gymnosperm frond Neuropteris ovata. Palaios 14, 180-185.View article

Cleal, C.J. & Thomas, B.A. 2005. Palaeozoic tropical rainforests and their effect on global climates: is the past the key to the present? Geobiology 3, 13-31.View article

Deconinck, J.F., Strasser, A. & Debrabant, P. 1988. Formation of illitic minerals at surface temperatures in Purbeckian sediments (lower Berrasian, Swiss and French Jura). Clay Minerals 23, 91-104.View article

DiMichele, W.A., Pfefferkorn, H.W. & Gastaldo, R.A. 2001. Response of Late Carboniferous and Early Permian plant communities to climate change. Annual Review of Earth and Planetary Sciences 29, 461-487.View article

Dixon, J.B. & Skinner, H.C.W. 1992. Manganese minerals in surface environments, 31-50. In Skinner, H.C.W. & Fitzpatrick, R.W. (eds) Biomineralization Processes of Iron and Manganese. Catena-Verlag, Cremlingen-Destedt.

Driese, S.G., Nordt, L.C., Lynn, W., Stiles, C.A., Mora, C.I. & Wilding, L.P. 2005. Distinguishing climate in the soil record using chemical trends in a Vertisol climosequence from the Texas Coastal Prairie, and application to interpreting Paleozoic paleosols in the Appalachian Basin, U.S.A. Journal of Sedimentary Research 75(3), 340-353.View article

Elznic, A., Cháb, J. & Pešek, J. 1974. A graben structure striking north-northeast-south-southwest in the Plzeň and the Žihle basins. Folia Musei rerum naturalium Bohemiae occidentalis, Geologica 4.

Etheridge, F.G. & Schumm, S.A. 1978. Reconstructing palaeochannel morphologic and flow characteristics: methodology, limitations and assessment, 703-721. In Miall, A.D. (ed.) Fluvial sedimentology. Canadian Society of Petroleum Geologists Memoir 5.

Feldman, H.R., Franseen, E.K., Joeckel, R.M. & Heckel, P.H. 2005. Impact of longer-term modest climate shifts on architecture of high-frequency sequences (cyclothems), Pennsylvanian of midcontinent U.S.A. Journal of Sedimentary Research 75(3), 350-368.View article

Ferguson, R.I. 1993. Understanding braiding processes in gravel bed rivers: progress and unsolved problems, 73-87. In Best, J.L. & Bristow, C.S. (eds) Braided Rivers. Special Publication 75, Geological Society Publishing House, Bath.View article

Friend, P.F. 1983. Towards the field classification of alluvial architecture or sequence, 531-542. In Collinson, J.D. & Lewin J. (eds) Modern and ancient fluvial systems. International Association of Sedimentologists, Special Publication 6.

Friend, P.F., Slater, M.J. & Williams, R.C. 1979. Vertical and lateral building of river sandstone bodies, Ebro Basin, Spain. Journal of Geological Sociaety of London 136, 39-46.View article

Ghosh, P. 2000. Estimation of channel sinuosity from paleocurrent data: a method using fractal geometry. Journal of Sedimentary Research 70(3), 449-455.View article

Gibling, M.R. 2006. Width and thickness of fluvial channel bodies and valley fills in the geological record: a literature compilation and classification. Journal of Sedimentary Research 76(5), 731-770.View article

Gibling, M.R. & Bird, J.D. 1994. Late Carboniferous cyclothems and alluvial paleovalleys in the Sydney Basin, Nova Scotia. Geological Society of America Bulletin 106(1), 105-117.View article

Godin, P. 1991. Fining-upwards cycles in the sandy-braided river deposits of the Westwater Canyon Member (Upper Jurassic), Morrison Formation, New Mexico. Sedimentary Geology 70, 61-82.View article

Gulbranson, E.L., Montanez, I.P., Tabor, N.J. & Limarino, O.C. 2015. Late Pennsylvanian aridification on the southwestern margin of Gondwana (Paganzo Basin, NW Argentina): A regional expression of a global climate pertubation. Palaeogeography, Palaeoclimatology, Palaeoecology 417(1), 220-235.View article

Gustavson, T.C. 1978. Bed forms and stratification types of modern gavel meander lobes, Nueces River, Texas. Sedimentology 25, 401-426.View article

Hajek, E.A., Heller, P.L. & Sheets, B.A. 2010. Significance of channel-belt clustering in alluvial basins. Geology 38(6), 535-538.View article

Havlena, V. 1977. Late Paleozoic basins of the Bohemian Massif, 173-182. In Holub, W.M. & Wagner, R.H. (eds) Symposium on Carboniferous Stratigraphy. Ústřední ústav geologický, Prague.

Havlena, V. & Pešek, J. 1980. Stratigrafie, paleogeografie a základní strukturní členění limnického permokarbonu Čech a Moravy. Sborník Příroda 34. Pilsen. [in Czech]

Heller, P.L. & Paola, C. 1996. Downstream changes in alluvial architecture: an exploration of controls on channel-stacking patterns. Journal of Sedimentary Research 66(2), 297-306.

Holbrook, J. 2001. Origin, genetic interrelationships, and stratigraphy over the continuum of fluvial channel-form bounding surfaces: an illustration from middle Cretaceous strata, southeastern Colorado. Sedimentary Geology 144, 179-222.View article

Hooke, R. LeB. 2000. Toward a uniform theory of clastic sediment yield in fluvial systems. Geological Society of America Bulletin 112(12), 1778-1786.View article

Horton, D.E., Poulsen, C.J., Montanez, I.P. & DiMichele, W.A. 2012. Eccentricity-paced late Paleozoic climate change. Palaeogeography, Palaeoclimatology, Palaeoecology 331-332, 150-161.View article

Huggett, J.M. & Cuadros, J. 2003. Low-temperature illitization of smectite in the late Eocene and early Oligocene of the Isle of Wight (Hampshire Basin), U.K. American Mineralogist 90, 1192-1202.View article

Johnson, W.M. & Maxwell, J.A. 1981. Rock and Mineral Analysis. 489 pp. Wiley, New York.

Kraus, M.J. 1997. Lower Eocene alluvial Paleosols: pedogenic development, stratigraphic relationships, and paleosol/landscape associations. Palaeogeography, Palaeoclimatology, Palaeoecology 129, 387-406.View article

Kraus, M.J. 1999. Paleosols in clastic sedimentary rocks: their geologic significance. Earth-Science Reviews 47, 41-70.View article

Khadkikar, A.S. 1999. Trough cross-bedded conglomerate facies. Sedimentary Geology 128(1-2), 39-49.View article

Krs, M. & Pruner, P. 1995. Palaeomagnetism and palaeogeography of the Variscan formations of the Bohemian Massif, comparison with other European regions. Journal of Czech Geological Society 40, 3-46.

Kužvart, M., Neužil, J., Pešek, J. & Šindelář, J. 1975. Vznik a stáří ložisek kaolínu v plzeňské pánvi. Sborník geologických věd 17, Ložisková geologie, 125-241. [in Czech]

Leclair, S. ? Bridge, J.S. 2001. Quantitative interpretation of sedimentary structures formed by rived dunes. Journal of Sedimentary Research 71(5), 713-716.View article

Leddy, J.O., Ashworth, P.J. & Best, J.L 1993. Mechanisms of anabranch avulsion within gravel-bed braided rivers: observations from a scaled physical model, 119-127. In Best, J.L. & Bristow, C.S. (eds) Braided Rivers. Special Publication 75, Geological Society Publishing House, Bath.View article

Leeder, M.R., Harris, T. & Kirby, M.J. 1998. Sediment supply and climate change: implications for basin stratigraphy. Basin Research 10, 7-18.View article

Leleu, S., Hartley, A.J. & Williams, B.P.J. 2009. Large-scale alluvial architecture and correlation in a Triassic pebbly braided river system, lower Wolfville Formation (Fundy Basin, Nova Scotia, Canada). Journal of Sedimentary Research 79(5), 265-286.View article

Lewin, J. & Macklin, M.G. 2003. Preservation potential for Late Quarternary river alluvium. Journal of Quarternary Science 18, 107-120.View article

Lojka, R., Sýkorová, I., Laurin, J., Matysová, P. & Grygar, T.M. 2010. Lacustrine couplet-lamination: evidence for Late Pennsylvanian seasonality in central equatorial Pangaea (Stephanian B, Mšec Member, Central and Western Bohemian basins). Bulletin of Geosciences 85(4), 709-734.View article

López-Gómez, J. & Arche, A. 1993. Architecture of the Caniyar fluvial sheet sandstones, Early Triassic, Iberian Ranges, Eastern Spain, 363-381. In Marzo, M. & Puigdefabregas, C. (eds) Alluvial Sedimentation. International Association of Sedimentologists, Special Publication 17.

Lunt, I.A, Bridge, J.S. & Tye, R.S. 2004. A quantitative, three-dimensional depositional model of gravelly braided rivers. Sedimentology 51, 377-414.View article

Mack, G.H., James, W.C. & Monger, H.C. 1993. Classification of paleosols. Geological Society of America Bulletin 105, 129-136.View article

Marriott, S.B. & Wright, V.P. 1993. Paleosols as indicators of geomorphic stability in two Old Red Sandstone alluvial suites, South Wales. Journal of Geological Society of London 150, 1109-1120.View article

Matysová, P., Rössler, R., Götze, J., Leichmann, J., Forbes, G., Taylor, E.R., Sakala, J. & Grygar, T. 2010. Alluvial and volcanic pathways to silicified plant stems (Upper Carboniferous-Triassic) and their taphonomic and palaeoenvironmental meaning. Palaeogeography, Palaeoclimatology, Palaeoecology 292, 127-143.View article

McLaurin, B.T. & Steel, R.J. 2007. Architecture and origin of an amalgamated fluvial sheet sand, lower Castlegate Formation, Book Cliffs, Utah. Sedimentary Geology 197, 291-311.View article

Miall, A.D. 1980. Cyclicity and the facies model concept in fluvial deposits. Bulletin of Canadian Petroleum Geology 28, 59-80.

Miall, A.D. 1988. Architectural elements and bounding surfaces in fluvial depostis: Anatomy of Kayenta Formation (lower Jurrasic), southwest Colorado. Sedimentary Geology 55, 233-262.View article

Miall, A.D. 1996. The geology of fluvial deposits. 582 pp. Springer-Verlag, New York.

Mohrig, D., Heller, P.L., Paola, C. & Lyons, W.J. 2000. Interpreting avulsion process from ancient alluvial sequences: Gaudalope-Matarranya system (northern Spain) and Wasatch Formation (western Colorado). Geological Society of America Bulletin 112, 1787-1803.View article

Nemec, W. & Postma, G. 1993. Quarternary alluvial fans in southwestern Crete: sedimentation processes and geomorphic evolution, 235-276. In Marzo, M. & Puigdefabregas, C. (eds) Alluvial Sedimentation. International Association of Sedimentologists, Special Publication 17.

Němejc, F. 1953. Úvod do floristické stratigrafie kamenouhelných oblastí ČSR. 173 pp. Academia, Praha.

Nesbitt, H.W. & Young, G.M. 1982. Early Proterozoic climates and plate motions inferred from major element chemistry of lutites. Nature 299, 715-717.View article

Nordt, L.C. & Driese, S.D. 2010. New weathering index improves paleorainfall estimates from Vertisols. Geology 38, 407-410.View article

Nowak, J., Florek, M., Kwiatek, W., Lekki, J., Chevalier, P., Zięba, E., Mestres, N., Dutkiewicz, E.M. & Kuczumow, A. 2005. Composite structure of wood cells in petrified wood. Materials Science and Engineering C 25, 119-130.View article

Olsen, T., Steel, R., Hogseth, K., Skar, T. & Roe, S.L. 1995. Sequential architecture in a fluvial succession: sequence stratigraphy in the Upper Cretaceous Mesaverde Group, Price Canyon, Utah. Journal of Sedimentary Research B 65(2), 265-280.View article

Opluštil, S. 2005. Evolution of the Middle Westphalian river valley drainage system in central Bohemia (Czech Republic) and its palaeogeographic implication. Palaeogeography, Palaeoclimatology, Palaeoecology 222(3-4), 223-258.View article

Opluštil, S., Martínek, K. & Tasáryová, Z. 2005. Facies and architectural analysis of fluvial deposits of the Nýřany Member and the Týnec Formation (Westphalian D - Barruelian) in the Kladno-Rakovník and Pilsen basins. Bulletin of Geosciences 80(1), 45-66.

Opluštil, S. & Pešek, J. 1998. Stratigraphy, palaeoclimatology and palaeogeography of the Late Paleozoic continental deposits in the Czech Republic, 597-620. In Crasquin-Soleau, S., Izart, A., Vaslet, D. & De Wever, P. (eds) Peri-Tethys: Stratigraphic Correlations 2. Geodiversitas 20(4).

Opluštil, S., Schmitz, M., Cleal, C.J. & Martínek, K. 2016. A review of the Middle-Late Pennsylvanian west European regional substages and floral biozones, and their correlation to the Geological Time Scale based on new U-Pb ages. Earth-Science Reviews 154, 301-335.View article

Pašek, J. & Urban, M. 1990. The tectonic evolution of the Plzeň Basin (Upper Carboniferous, Western Bohemia): a review and reinterpretation. Folia Musei rerum naturalium Bohemiae occidentalis, Geologica 32, 3-56.

Peizhen, Z., Molnar, P. & Downs, W.R. 2001. Increased sedimentation rates and grain sizes 2±4 Myr ago due to the influence of climate change on erosion rates. Nature 410, 891-897.View article

Pešek, J. 1968. Geologická stavba a vývoj sedimentů plzeňské černouhelné pánve. Sborník Příroda 2. Pilsen. [in Czech]

Pešek, J. 1994. Carboniferous of Central and Western Bohemia (Czech Republic). 60 pp. Czech Geological Survey, Prague.

Pešek, J., Holub, V., Malý, L., Martínek, K., Prouza, V., Spudil, J. & Tásler, R. 2001. Geologie a ložiska svrchnopaleozoických limnických pánví ČR. 243 pp. Czech Geological Survey, Prague.

Pešek, J., Opluštil, S., Kumpera, O., Holub, V., Skoček, V., Dvořák, J., Prouza, V. & Tásler, R. 1998. Paleogeographic Atlas: Late Paleozoic and Triassic Formations, Czech Republic. 53 pp. Czech Geological Survey, Prague.

Potts, P.J. 1995. A Handbook of Silicate Rock Analysis. 622 pp. Blackie Academic and Professional, London.View article

Ramos, A. & Sopena, A. 1983. Gravel bars in low-sinuosity streams (Permian and Triassic, central Spain), 301-312. In Collinson, J.D. & Lewin, J. (eds) Modern and ancient fluvial systems. International Association of Sedimentologists, Special Publication 6.

Reynolds, R.C. Jr. 1985. NEWMOD©, a computer program for the calculation of one dimensional diffraction patterns of mixed-layered clays. R.C. Reynolds, Jr., 8 Brook Road, Hanover, New Hampshire 03755, USA.

Robinson, D. & Wright, V.P. 1987. Ordered illite-smectite and kaolinite-smectite: pedogenic minerals in a Lower Carboniferous paleosol sequence, South Wales. Clay Minerals 22, 109-118.View article

Rosenau, N.A., Tabor, N.J., Elrick, S.D. & Nelson, W.J. 2013. Polygenetic history of paleosols in middle-upper Pennsylvanian cyclothems of the Illinois Basin, U.S.A.: Part I. Characterization of paleosol types and interpretation of pedogenic processes. Journal of Sedimentary Research 83(8), 606-636.View article

Rygel, M.C., Fielding, C.R., Frank, T.D. & Birgenheier, L.P. 2008. The magnitude of late Paleozoic glacioeustatic fluctuations: a synthesis. Journal of Sedimentary Research 78, 500-511.View article

Schneider, J.W., Korner, F., Roscher, M. & Kroner, U. 2006. Permian climate development in the northern peri-Tethys area - The Lodeve Basin, French Massif Central, compared in a European and global context. Palaeogeography, Palaeoclimatology, Palaeoecology 240, 161-183.View article

Scotese, C.R. & McKerrow, W.S. 1990. Revised world maps and introduction, 1-21. In Mc Kerrow, W.S. & Scotese, C.R. (eds) Paleozoic Paleogeography and Biogeography. Geological Society of London Memoir 12.

Šetlík, J. 1968. Fytopaleontologie nýřanských vrstev (zpracování vrtného materiálu) - dílčí závěrečná zpráva. Ústřední ústav geologický, Prague. [unpublished report]

Šetlík, J. 1977. Results on recent investigations on the Carboniferous flora of Bohemia, 315-340. In Holub, V.M. & Wagner, R.H. (eds) Symposium on Carboniferous Stratigraphy. Ústřední ústav geologický, Prague.

Šetlík, J. 1980. Makrofytopaleontologie. In Malán, O. et al. (eds) Plzeňská pánev - černé uhlí - studie. Ústřední ústav geologický, Prague. [unpublished report]

Shanley, K.W. & McCabe, P.J. 1994. Perspectives on the sequence stratigraphy of continental strata. American Association of Petroleum Geologists Bulletin 78, 544-568.

Sheldon, N.D., Retallack, G.J. & Tabor, N.J. 2002. Geochemical climofunctions from North America soils and application to paleosols across the Eocene-Oligocene boundary in Oregon. Journal of Geology 110, 687-696.View article

Sheldon, N.D. & Tabor, N.J. 2009. Quantitative paleoenvironmental and paleoclimatic reconstruction using paleosols. Earth-Science Reviews 95(1-2), 1-52.View article

Skoček, V. 1968. Svrchnokarbonské varvity ve středočeských kamenouhelných pánvích. Věstník Ústředního ústavu geologického 43, 113-121. [in Czech with English abstract]

Skoček, V. 1970. Silicified wood in the Central Bohemian Permo-Carboniferous. Věstník Ústředního ústavu geologického 45, 87-94. [in Czech with English abstract]

Skoček, V. 1990. Stephanian lacustrine-deltaic sequence in central and northeast Bohemia. Sborník geologických věd, Geologie 45, 91-122. [in Czech with English abstract]

Siegenthaler, C. & Huggenberger, P. 1993. Pleistocene Rhine gravel: deposits of a braided river system with dominant pool preservation, 147-162. In Best, J.L. & Bristow, C.S. (eds) Braided rivers. Special Publication 75, Geological Society Publishing House, Bath.View article

Tabor, N.J. & Poulsen, C.J. 2008. Palaeoclimate across the Late Pennsylvanian-Early Permian tropical palaeolatitudes: A review of climate indicators, their distribution, and relation to palaeophysiographic climate factors. Palaeogeography, Palaeoclimatology, Palaeoecology 268, 293-310.View article

Tanner, C.B. & Jackson, M.L. 1948. Nomographs of sedimentation times for soil particles under gravity or centrifugal acceleration. Soil Science Society of America Proceedings 12, 60-65.View article

Ullah, M.S., Bhattacharya, J.P. & Dupre, W.R. 2015. Confluence scours versus incised valleys: examples from the Cretaceous Ferron Notom Delta, southeastern Utah, U.S.A. Journal of Sedimetary Research 85(5), 445-458.View article

Watts, W.L. 1980. Quaternary pedogenic calcretes from Kalahari (southern Africa): mineralogy, genesis and diagenesis. Sedimentology 27, 661-686.View article

Weibel, R. 1996. Petrified wood from an unconsolidated sediment, Voervadsbro, Denmark. Sedimentary Geology 101, 31-41.View article

Weithofer, K.A. 1896. Die geologischen Verhältnisse des Bazer-Schachtes und benachbarten teiles der Pilsner Kohlenmulde. Österreichische Zeitschrift für Berg- und Hüttenwesen 44(25-28), 317-321, 331-335, 345-349, 355-357.

Wilding, L.P. & Tessier, D. 1988. Genesis of Vertisols: shrink-swell phenomena, 55-81. In Wilding, L.P. & Puentes, R. (eds) Vertisols: their distribution, properties, classification and management. Texas A&M University Publishing Center, College Station, Texas.

Willis, B.J. 1993. Ancient river systems in the Himalayan fordeep, Chinji village area, northern Pakistan. Sedimentary Geology 88, 1-76.View article

Wilson, M.J. 1999. The origin and formation of clay minerals in soils: past, present and future perspectives. Clay Minerals 34, 7-25.View article

Wright, V.P. & Marriott, S.B. 1993. The sequence stratigraphy of fluvial depositional systems: the role of floodplain sediment storage. Sedimentary Geology 86, 203-210.View article

Yaalon, D.H. & Kalmar, D. 1978. Dynamics of cracking and swelling clay soils: displacement of skeletal grains, optimum depth of slickensides, and rate of intrapedonic turbation. Earth Surface Processes and Landforms 3, 31-42.View article

Yagishita, K. 1997. Paleocurrent and fabric analyses of fluvial conglomerates of theView article

Paleogene Noda Group, northeast Japan. Sedimentary Geology 109, 53-71.View article

Žáček, V. & Cháb, J. 1993. Metamorphism in the Teplá Upland, Bohemian Massif, Czech Republic (Preliminary report). Věstník Českého geologického ústavu 68(3), 33-37.

Ziegler, P.A. 1990. Geological Atlas of Western and Central Europe. Second edition. 239 pp. Shell Internationale Petroleum Maatschappij B.V., The Hague.