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Mostrando 21 - 36 Resultados de 36 Para Buscar 'delta fluvial', tiempo de consulta: 0.36s Limitar resultados
  1. 21
    “…Sedimentological and palynostratigraphical studies were performed on 189 ditch-cutting samples composited at 50 ft intervals from four well sections located in KW field, onshore western Niger Delta Basin, Nigeria, using sieving and visual microscopic observations, hydrochloric and hydrofluoric acids digestion methods to determine their lithological character and palynologic content of the sedimentary successions. …”
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    Sedimentological and palynostratigraphical modeling of sediments penetrated by KW field wells, onshore western Niger Delta Basin, Nigeria
  2. 22
    “…The crude oils and their source rocks from Niger Delta basin, Nigeria were investigated by optical microscopy for the maceral compositions and by gas chromatography - mass spectrometry (GC-MS) for the composition, distribution and abundances of saturated and aromatic biomarkers. …”
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    Occurrence and geochemical significance of fluorene and alkylfluorenes in crude oils and source rock extracts from Niger Delta basin, Nigeria
  3. 23
    “…Here we evaluate geomorphic evolution during and after the sediment pulse, presenting a 5-year sediment budget and morphodynamic analysis of the Elwha River and its delta. Approximately 65% of the sediment was eroded, of which only ~10% was deposited in the fluvial system. …”
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    Morphodynamic evolution following sediment release from the world’s largest dam removal
  4. 24
    “…Palynology-based multivariate datasets including geological, ecological, and geochemical data identified the relative importance of the underlying drivers of critical stressors to coastal wetlands by identifying and distinguishing between fluvial flooding, saline water intrusion, delta switching, and the landward migration of coastal plants. …”
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    The use of multivariate PCA dataset in identifying the underlying drivers of critical stressors, looking at global problems through a local lens
  5. 25
    “…Deltaic systems developed in S1–S2 are relatively coarse in grain size, and the delta plain deposits are dominated by thickly stacked (100–180 m) distributary channel sand bodies and interpreted as braided delta depositional system. …”
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    Sedimentary evolution and controlling factors of Early-Mid Miocene Deltaic systems in the Northern Pearl River Mouth Basin, South China Sea
  6. 26
    “…Both mud and vegetation settle on intertidal bars and on the fluvial bay‐head delta, thereby contributing to bar stabilization and further estuary infilling, pointing at effective strategies to keep up with future sea‐level rise. …”
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    Building and Raising Land: Mud and Vegetation Effects in Infilling Estuaries
  7. 27
    “…We propose that I. duncani inhabited upper and lower delta plains near the Eromanga Sea in life. Their carcasses were buried in sediment-laden floodwaters in delta plain overbank and distributary channel deposits. …”
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    Taphonomy of Isisfordia duncani specimens from the Lower Cretaceous (upper Albian) portion of the Winton Formation, Isisford, central-west Queensland
  8. 28
    “…Over the last century humans have altered the export of fluvial materials leading to significant changes in morphology, chemistry, and biology of the coastal ocean. …”
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    Early Anthropogenic Transformation of the Danube-Black Sea System
  9. 29
    “…Detailed investigation of landforms and their underlying deposits on the eastern margin of Fenland, East Anglia, demonstrated that they represent a series of glaciofluvial delta-fan and related sediments. Associated with these deposits are glacially dislocated sediments including tills, meltwater and pre-existing fluvial sediments. …”
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    Pleistocene glaciation of Fenland, England, and its implications for evolution of the region
  10. 30
    “…Concentrations of Ba and Br, along with six elemental ratios (Ca/Rb, Zr/Rb, Ti/Rb, K/Ti, Mn/Rb, S/Rb), were employed to infer proxies for a range of environmental conditions (waterlogging, redox levels), depositional processes (fluvial vs marine or in situ), and sediment characteristics (grain size). …”
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    An integrated methodology for assessing ecosystem response to environmental stressors under changing climatic conditions in coastal wetlands
  11. 31
    “…Much attention has been focused on fine‐grained sediments carried as suspended load in rivers due to their potential to transport, disperse, and preserve organic carbon (OC), while the transfer and fate of OC associated with coarser‐grained sediments in fluvial systems have been less extensively studied. …”
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    Vegetal Undercurrents—Obscured Riverine Dynamics of Plant Debris
  12. 32
    “…BACKGROUND: Both frequency and intensity of flood events are expected to increase as a result of global climate change in the upcoming decades, potentially resulting in increased re-suspension of sediments in fluvial systems. Contamination of these re-suspended sediments with legacy contaminants, including dioxins and dioxin-like compounds (DLCs), as well as polycyclic aromatic hydrocarbons (PAHs) is of great ecotoxicological concern. …”
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    Toward understanding the impacts of sediment contamination on a native fish species: transcriptional effects, EROD activity, and biliary PAH metabolites
  13. 33
    “…Based on the lithofacies assemblages, these sediments represent fluvial deposits, possibly of an anastomosing river system. …”
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    Late Miocene sedimentary environments in south-western Amazonia (Solimões Formation; Brazil)
  14. 34
    “…The presence of water‐formed features, including fluvial Gilbert and sapping deltas fed by sapping valleys, constitute strong evidence of groundwater upwelling resulting in long term standing bodies of water inside the basins. …”
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    Geological Evidence of Planet‐Wide Groundwater System on Mars
  15. 35
    por Margolis, Liat
    Publicado 2007
    Tabla de Contenidos: “…DIGESTIVE : Bio-remediation park design : Former British Petroleum Park, Sydney, Australia / McGregor + Partners -- Fluvially integrated effluent wetlands : Environmental restoration of Besós River, Barcelona / Barcelona Regional Agéncia Metropolitana de Desenvolupament Urbanístic i d'Infraestructures S.A. -- Water-cleansing biotope : DaimlerChrysler Plaza, Potsdamer Platz, Berlin / Atelier Dreiseitl -- On-site sewage-treatment system : Sidwell Friends School, Washington, DC / Andropogon Associates + Kieran Timlerlake Associates + Natural Systems International -- Ground reconstitution strategy : Urban Outfitters Navy Yard Headquarters, Philadelphia, / D.I.R.T. …”
    Libro
    Living systems : innovative materials and technologies for landscape architecture /
  16. 36
    “…We identify the location of immediate pre-glacial fluvially derived sandy systems where rivers from the Norwegian mainland built marine deltas. …”
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    3D sedimentary architecture showing the inception of an Ice Age
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