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  • 1
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Sedimentology. ; Petrology. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (254 pages)
    Edition: 1st ed.
    ISBN: 9781444313154
    Language: English
    Note: EDITORIAL -- Fluvial responses to climate and sea-level change: a review and look forward -- Dolomite formation and biogeochemical cycles in the Phanerozoic -- The structure and fluid mechanics of turbidity currents: a review of some recent studies and their geological implications -- Spatial and temporal distribution of diagenetic alterations in siliciclastic rocks: implications for mass transfer in sedimentary basins -- Quantitative models of sedimentary basin filling -- Microbial carbonates: the geological record of calcified bacterial-algal mats and biofilms -- Deposition and early alteration of evaporites -- Continental margin sedimentation, with special reference to the north-east Atlantic margin.
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  • 2
    Online Resource
    Online Resource
    Newark :John Wiley & Sons, Incorporated,
    Keywords: Braided rivers. ; Electronic books.
    Type of Medium: Online Resource
    Pages: 1 online resource (400 pages)
    Edition: 1st ed.
    ISBN: 9781444304381
    Series Statement: International Association of Sedimentologists Series ; v.21
    DDC: 333.9162
    Language: English
    Note: Intro -- Acknowledgements -- Braided rivers: where have we come in 10 years? Progress and future needs GREG SAMBROOK SMITH*, JIM BEST † , CHARLIE BRISTOW ‡ and GEOFF PETTS* -- Depositional models of braided rivers JOHN S. BRIDGE and IAN A. LUNT 1 -- A sedimentological model to characterize braided river deposits for hydrogeological applications PETER HUGGENBERGER and CHRISTIAN REGLI -- Scaling and hierarchy in braided rivers and their deposits: examples and implications for reservoir modelling SEAN KELLY -- Approaching the system-scale understanding of braided river behaviour STUART N. LANE -- Cellular modelling of braided river form and process A.P. NICHOLAS, R. THOMAS and T.A. QUINE -- Numerical modelling of alternate bars in shallow channels A. BERNINI, V. CALEFFI and A. VALIANI -- Methods for assessing exploratory computational models of braided rivers ANDREA B. DOESCHL* ,1 , PETER E. ASHMORE † and MATT DAVISON* -- Bed load transport in braided gravel-bed rivers CHRISTIAN MARTI and GIAN RETO BEZZOLA -- Sediment transport in a microscale braided stream: from grain size to reach scale P. MEUNIER and F. MÉTIVIER -- Morphological analysis and prediction of river bifurcations GUIDO ZOLEZZI, WALTER BERTOLDI and MARCO TUBINO -- Braided river management: from assessment of river behaviour to improved sustainable development HERVÉ PIÉGAY*, GORDON GRANT † , FUTOSHI NAKAMURA ‡ and NOEL TRUSTRUM -- Bank protection and river training along the braided Brahmaputra-Jamuna River, Bangladesh ERIK MOSSELMAN -- Morphological response of the Brahmaputra-Padma-Lower Meghna river system to the Assam earthquake of 1950 MAMINUL HAQUE SARKER* and COLIN R. THORNE †. , Use of remote-sensing with two-dimensional hydrodynamic models to assess impacts of hydro-operations on a large, braided, gravel-bed river: Waitaki River, New Zealand D. MURRAY HICKS*, U. SHANKAR*, M.J. DUNCAN*, M. REBUFFÉ † and J. ABERLE ‡ -- Effects of human impact on braided river morphology: examples from northern Italy NICOLA SURIAN -- Ecology of braided rivers KLEMENT TOCKNER*, ACHIM PAETZOLD* ,† , UTE KARAUS*, CÉCILE CLARET ‡ and JÜRG ZETTEL -- Riparian tree establishment on gravel bars: interactions between plant growth strategy and the physical environment ROBERT A. FRANCIS*, ANGELA M. GURNELL*, GEOFFREY E. PETTS † and PETER J. EDWARDS ‡ -- Index.
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  • 3
    Keywords: Phosphate deposits ; Phosphates ; Konferenzschrift ; Phosphorit ; Phosphoritlagerstätte ; Phosphoritlagerstätte
    Type of Medium: Online Resource
    Pages: 1 Online-Ressource (IX, 326 Seiten)
    ISBN: 0903317532
    Series Statement: Geological Society special publication 52
    DDC: 553.6/4
    RVK:
    Language: English
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  • 4
    Keywords: Phosphate deposits ; Phosphates ; Konferenzschrift 1988 ; Aufsatzsammlung ; Konferenzschrift ; Phosphorit ; Phosphoritlagerstätte ; Phosphorit ; Phosphoritlagerstätte ; Phosphoritlagerstätte
    Type of Medium: Book
    Pages: IX, 326 S. , Ill., graph. Darst., Kt.
    ISBN: 0903317532
    Series Statement: Special publication / Geological Society 52
    DDC: 553.64
    RVK:
    Language: English
    Note: Papers contributed to the 11th and Final International Field Workshop and Symposium of the International Geological Correlation Programme (IGCP) Project 156: Phosphorites, which was held at Hertford College, Oxford, England, 5-8 September, 1988"--P. v , Includes bibliographical references and index
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Sedimentology 49 (2002), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Sedimentology 47 (2000), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Sedimentology 39 (1992), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: Santonian-Lower Campanian and Lower Maastrichtian phosphatic chalks in northern France, southern England and Belgium are Europe's largest sedimentary phosphatc deposits. The stratigraphy, sediment-ology, petrography, mineralogy and geochemistry of the lithofacies are reviewed and new data presented. Depositional and diagenetic models for phosphatic chalk deposits are developed using published experimental work and from observations of modern high- and low-productivity phosphogenic systems. It is concluded that phosphatic chalks were deposited in well-oxygenated, current-swept environments. Phosphatization required a delicate balance to be maintained between moderate organic carbon and carbonate sedimentation rates, reduced bulk sediment accumulation rate and an enhanced rate of bioturbation. Precipitation of carbonate-fluorapatite (francolite) accompanied the bacterially mediated decomposition of organic matter, occurring within centimetres of the sediment-seawater interface, and taking place preferentially within microbial bodies and coatings. In addition to the organically derived component, pore water phosphate levels were enhanced by phosphate absorbed on ferric oxyhydroxides which was liberated during iron reduction. Mineralization was probably a dominantly post-oxic process, but occurred in a thick sediment mixed layer in which marine organic matter was undergoing intense mixed aerobic and anaerobic microbial degradation. Phosphogenesis occurred predominantly on the NE margins of the Anglo-Paris Basin where shallower sea floors and suitable palaeoceanographic conditions prevailed. Phosphogenic episodes were limited by sea level fluctuations'which controlled the effectiveness of the erosional currents that formed and maintained the phosphatic basins and may have stimulated local productivity.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Science Ltd
    Sedimentology 50 (2003), S. 0 
    ISSN: 1365-3091
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Geostandards and geoanalytical research 12 (1988), S. 0 
    ISSN: 1751-908X
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Geosciences
    Notes: The rare-earth elements (REE) and yttrium have been determined in 37 international rock and mineral reference materials. Samples were prepared using conventional rock-dissolution techniques, and the REE and yttrium were separated from the other constituents using cation-exchange chromatography. The REE (La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb, Lu) and yttrium were determined simultaneously by inductively coupled plasma-atomic emission spectrometry (ICP-AES). Results for four well-characterised USGS standard rocks agree favourably with “recommended” values and with REE determinations made previously by workers using ICP-AES, isotope dilution mass spectrometry, instrumental neutron activaton analysis and X-ray fluorescence spectrometry.Les éléments de terres rares (TR) et yttrium ont été dosés dans 37 échantillons internationaux de réféence. Les échantillons ont été décomposés par dissolution acide et les TR séparés par résine échangeuse de cations. Les TR (La, Ce, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Yb, Lu) et yttrium ont été dosés simultanément par la spectrométrie d'émission-plasma inductif. Les résultats obtenus pour quatre échantillons de référence bien charactérisés de I'USGS se comparent favorablement avec ceux obtenus par la spectrométrie d'émission-plasma, la dilution isotopique, I'activation neutronique et par la spectrométrie d'é fluorescence-X.
    Type of Medium: Electronic Resource
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  • 10
    Publication Date: 2023-03-14
    Description: A high-resolution carbonate C-isotope (δ13Ccarb) stratigraphy for the Aptian is presented for the Cau core from Alicante, Spain. The studied succession, lower to upper Aptian, embraces the record of the Early Aptian OAE 1a. The data provided includes δ13Ccarb, δ18O isotopes, Total Organic Carbon (TOC) and CaCO3. Four overlapping cores (D1 to D4) were drilled with an almost 100% recovery of a total (corrected for dip) thickness of 143 m. The cores were split in two parts. One half was described, photographed and scanned, and then sampled with a drill to obtain powdered samples for geochemical analyses. Also, small solid samples were taken from the drill for biostratigraphic characterization of the nannofossil and planktonic foraminifera associations. Second half was stored for archive and future research.
    Keywords: Almadich formation; Aptian; Automatic calcimeter (DREAM Électronique SAS , Pessac, France); Calcium carbonate; C and O isotopes; Carbon, organic, total; Cau_Core-D1; Cau_Core-D2; Cau_Core-D3; Cau_Core-D4; Cau-core; CO3Ca; DEPTH, sediment/rock; Event label; Hemipelagic sedimentation; Mass spectrometer, Finnigan, MAT 253; coupled with Carbonate preparation device, Finnigan, KIEL IV; OAE 1a; RDC; Rock drill core; Sample ID; Shimadzu TOC-V CSH total organic carbon analyzer; TOC; δ13C; δ18O
    Type: Dataset
    Format: text/tab-separated-values, 3121 data points
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