Relevant bibliographies by topics / Estuarine sedimentology

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  2. Dissertations / Theses
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  4. Book chapters

Academic literature on the topic 'Estuarine sedimentology'

Author: Grafiati
Published: 4 June 2021
Last updated: 5 February 2022

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Journal articles on the topic "Estuarine sedimentology"

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Goldberg, Paul, K. Pye, and J. R. L. Allen. "Coastal and Estuarine Environments: Sedimentology, Geomorphology and Geoarchaeology." American Journal of Archaeology 106, no. 1 (January 2002): 114. http://dx.doi.org/10.2307/507196.

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McGlashan, Derek J. "Coastal and Estuarine Environments: Sedimentology, Geomorphology And Geoarchaeology." Geomorphology 46, no. 3-4 (August 2002): 308–9. http://dx.doi.org/10.1016/s0169-555x(01)00169-6.

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Asp, Nils Edvin, Carlos Augusto França Schettini, Eduardo Siegle, Marcio Sousa da Silva, and Roney Nonato Reis de Brito. "The dynamics of a frictionally-dominated Amazonian estuary." Brazilian Journal of Oceanography 60, no. 3 (September 2012): 391–403. http://dx.doi.org/10.1590/s1679-87592012000300011.

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The hydrodynamics, morphology and sedimentology of the Taperaçu estuary were investigated. This is one of several estuaries located within the largest mangrove fringe in the world, bordering the Amazon region, subject to a macrotidal regime and regionally atypical negligible fresh water supply. The results reveal widespread sand banks that occupy the central portion of the estuarine cross-section. Well-sorted very fine sandy sediments of marine origin prevail. Shorter flood phases, with substantially higher current velocities, were observed in the upper sector of Taperaçu, as expected for a shallow, friction-dominated estuary. However, ebb domination can be expected for estuaries with large associated mangrove areas and substantial estuarine infilling, both of which situations occur on the Taperaçu. The tidal asymmetry favoring flood currents could be the result of the absence of an effective fluvial discharge. Furthermore, it was observed that the Taperaçu is connected by tidal creeks to the neighboring Caeté estuary, allowing a stronger flux during the flood and intensifying the higher flood currents. As a whole, the results have shown a complex interaction of morphological aspects (friction, fluvial drainage, connections with neighbor estuaries, infilling and large storage area) in determining hydrodynamic patterns, thus improving the understanding of Amazon estuaries.
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Ehlers, T. A., and M. A. Chan. "Tidal sedimentology and estuarine deposition of the Proterozoic Big Cottonwood Formation, Utah." Journal of Sedimentary Research 69, no. 6 (November 1, 1999): 1169–80. http://dx.doi.org/10.2110/jsr.69.1169.

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Shawler, Justin L., Christopher J. Hein, Elizabeth A. Canuel, James M. Kaste, Gregory G. Fitzsimons, Ioannis Y. Georgiou, and Debra A. Willard. "Tidal erosion and upstream sediment trapping modulate records of land-use change in a formerly glaciated New England estuary." Anthropocene Coasts 2, no. 1 (January 1, 2019): 340–61. http://dx.doi.org/10.1139/anc-2018-0034.

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Land clearing, river impoundments, and other human modifications to the upland landscape and within estuarine systems can drive coastal change at local to regional scales. However, as compared with mid-latitude coasts, the impacts of human modifications along sediment-starved formerly glaciated coastal landscapes are relatively understudied. To address this gap, we present a late-Holocene record of changing sediment accumulation rates and sediment sources from sediment cores collected across a tidal flat in the Merrimack River estuary (Mass., USA). We pair sedimentology, geochronology, bulk- and stable-isotope organic geochemistry, and hydrodynamic simulations with historical data to evaluate human and natural impacts on coastal sediment fluxes. During the 17th to 19th centuries, accumulation rates increased by an order of magnitude in the central tidal flat, likely in response to enhanced delivery of terrestrial sediment resulting from upland deforestation. However, the overall increase in accumulation (0.56–2.6 mm/year) within the estuary is subtle and spatially variable across the tidal flats because of coincident anthropogenic land clearing and dam building, upland sediment storage, and estuarine hydrodynamics. This study provides insight into the response of formerly glaciated fluvial-coastal systems to human modifications, and underscores the role of estuarine environmental conditions in modifying upland signals of land-use change.
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Lindqvist, JK, HJL Gard, and DE Lee. "Geological setting, sedimentology and biota of the estuarine late Oligocene Pomahaka Formation, New Zealand." New Zealand Journal of Geology and Geophysics 59, no. 2 (April 2, 2016): 352–65. http://dx.doi.org/10.1080/00288306.2016.1150862.

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MACK, G. H., M. LEEDER, M. PEREZ-ARLUCEA, and B. D. J. BAILEY. "Sedimentology, Paleontology, and Sequence Stratigraphy of Early Permian Estuarine Deposits, South-Central New Mexico, USA." PALAIOS 18, no. 4-5 (October 1, 2003): 403–20. http://dx.doi.org/10.1669/0883-1351(2003)018<0403:spasso>2.0.co;2.

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Andsbjerg, Jan. "Sedimentology and sequence stratigraphy of the Bryne and Lulu Formations, Middle Jurassic, northern Danish Central Graben." Geological Survey of Denmark and Greenland (GEUS) Bulletin 1 (October 28, 2003): 301–47. http://dx.doi.org/10.34194/geusb.v1.4676.

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The Middle Jurassic Bryne and Lulu Formations of the Søgne Basin (northern part of the Danish Central Graben) consist of fluvially-dominated coastal plain deposits, overlain by interfingering shoreface and back-barrier deposits. Laterally continuous, mainly fining-upwards fluvial channel sandstones that locally show evidence for tidal influence dominate the alluvial/coastal plain deposits of the lower Bryne Formation. The sandstones are separated by units of fine-grained floodplain sediments that show a fining-upwards – coarsening-upwards pattern and locally grade into lacustrine mudstones. A regional unconformity that separates the lower Bryne Formation from the mainly estuarine upper Bryne Formation is defined by the strongly erosional base of a succession of stacked channel sandstones, interpreted as the fill of a system of incised valleys. Most of the stacked channel sandstones show abundant mud laminae and flasers, and rare herringbone structures, suggesting that they were deposited in a tidal environment, probably an estuary. Several tens of metres of the lower Bryne Formation may have been removed by erosion at this unconformity. The estuarine channel sandstone succession is capped by coal beds that attain a thickness of several metres in the western part of the Søgne Basin, but are thin and poorly developed in the central part of the basin. Above the coal beds, the Lulu Formation is dominated by various types of tidally influenced paralic deposits in the western part of the basin and by coarsening-upwards shoreface and beach deposits in central parts. Westwards-thickening wedges of paralic deposits interfinger with eastwards-thickening wedges of shallow marine deposits. The Middle Jurassic succession is subdivided into nine sequences. In the lower Bryne Formation, sequence boundaries are situated at the base of laterally continuous fluvial channel sandstones whereas maximum flooding surfaces are placed in laterally extensive floodplain or lacustrine mudstones. The unconformity that separates the alluvial plain deposits of the lower Bryne Formation from the estuary deposits of the upper Bryne Formation is interpreted as a sequence boundary that bounds a system of incised valleys in the western and southern parts of the basin. Sequence boundaries in the Lulu Formation are situated at the top of progradational shoreface units or at the base of estuarine channels. Maximum flooding surfaces are located within marine or lagoonal mudstone units. Marine highstand deposits are partitioned seawards, in the eastern part of the basin, whereas paralic transgressive deposits are partitioned landwards, in the west. This marked sediment partitioning in the uppermost part of the succession resulted from the alternation of episodes of fault-induced half-graben subsidence with periods of slow uniform subsidence.
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Harris, J. P. "The sedimentology of a Middle Jurassic lagoonal delta system: Elgol Formation (Great Estuarine Group), NW Scotland." Geological Society, London, Special Publications 41, no. 1 (1989): 147–66. http://dx.doi.org/10.1144/gsl.sp.1989.041.01.12.

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KAWASAKI, Takashi, Kazuaki OHTSUKI, Yasuo NIHEI, Yutaro HIROSE, Yusuke YOSHIMORI, Takuro HANASAKI, Hiroki IYOOKA, and Norio ONIKURA. "MONITORING AND EVALUATION OF SEDIMENTOLOGY ON RESERVOIR TO ESTUARINE TIDAL FLAT FOR ASSESSMENT OF DAM REMOVAL EFFECTS." Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering) 71, no. 4 (2015): I_979—I_984. http://dx.doi.org/10.2208/jscejhe.71.i_979.

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Dissertations / Theses on the topic "Estuarine sedimentology"

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Bass, Jonathan. "The sedimentology and basin evolution of the Upper Marine Molasse of the Rhone-Alp region France." Thesis, University of Oxford, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302955.

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Manning, Andrew James. "Study of the effect of turbulence on the properties of flocculated mud." Thesis, University of Plymouth, 2001. http://hdl.handle.net/10026.1/491.

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Algan, A. Oya. "Sedimentology and geochemistry of fine-grained sediments in the Solent Estuarine System." Thesis, University of Southampton, 1993. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.241246.

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DeBoer, Darron G. "Deposition and preservation of estuarine sediment, Turnagain Arm, Cook Inlet, Alaska." Thesis, Kansas State University, 2009. http://hdl.handle.net/2097/1430.

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Master of Science
Department of Geology
Allen W. Archer
Turnagain Arm is the hypertidal (commonly exceeding 9 m) west-east trending extension of Cook Inlet in south-central Alaska. The inlet formed from a drowned glacial valley that was subsequently filled with tidal deposits of silt and fine sand. The tidal system is semidiurnal with a prominent diurnal inequality. There are also variations due to spring and neap tides. Turnagain Arm is home to a tidal bore generated during spring tides that can reach heights of up to 2 m and travel at speeds of up to 5 m/s. Current reversals can be dramatic with ebb tidal velocities of 6 m/s changing to flood velocities of 10 m/s over a period of a few minutes. During the initial flood tide, highly turbid water can rise as fast as 10 cm/min. This combination of elements results in a highly dynamic depositional setting. Measurements taken in the inner estuary during several neap-spring cycles in the summers of 2007-08 documented deposition upon mud bars of as much as 8.9 cm per tidal event. Conversely, erosion of up to 13.5 cm per tidal event has been measured. The highest rates of deposition and erosion occurred during the spring tides while much lower rates occur during the neap tides. Some portions of the inner estuary are only submerged during the extreme high tides. The magnitude of the high tide needed to cover each site increases with increasing distance into the upper estuary. Even if submerged, deposition does not always occur. Such a high percentage of non-depositional events has real implications when interpreting tidal cyclicity of the rhythmites found at these sites.
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Souza, Pricilla. "Evolution and stratigraphic architecture of tidal point bars with and without fluvial input: influence of variable flow regimes on sediment and facies distribution, and lateral accretion." ScholarWorks@UNO, 2019. https://scholarworks.uno.edu/td/2705.

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Tide-influenced point bars represent a significant proportion of shallow-marine deposits, commonly developed along meandering channels in most backbarrier and estuarine systems. However, sedimentological studies to characterize this type of deposit are still emerging. They often present very heterogeneous internal architectures which development is controlled by the complex flow patterns operating in tidal environments. The study of the sedimentological and morphological characteristics of these features provides better understanding of the hydrodynamic processes that shape coastal systems and control their evolution as well as it contributes to better reservoir potential prediction and production strategy optimization, as tidal point bars may represent hydrocarbon reservoirs in subsurface and their heterogeneous characteristics directly impact reservoir quality. In this study, we investigated six modern tidal point bars located along distinct estuarine tidal channels in Georgia. Using core data, 2D shallow seismic data and current measurements and flow velocity profiles, we discussed the main hydrodynamic controls on sediment transport and distribution, and determined how they affect the morphology, the internal architecture and the sediment distribution within these bars. We confirmed that the influence of fluvial input in tidal channels plays an important role on the development of the morphology and the heterogeneous architecture of point bars as it adds more complexity to the system hydrodynamics, promoting more asymmetric variations in water level fluctuations and huge variations of current velocities. We proved that point bars developed in distinct tide-influenced channels and estuaries, although present very different sedimentary facies distribution, may have sedimentary facies in common, which organization is analogous to surface processes operating at each environment. We demonstrated that differences in tidal asymmetries between the ebb and flood channels produce sedimentological differences between the different parts of the bar. This study showed that tidal point bars present distinct heterogeneous sediment distributions, morphologies and internal architectures that do not conform to the existing theoretical models of fluvial point bars and highlighted that, despite the differences in local hydrodynamic conditions, similarities identified between the different bars permitted us to distinguish the sedimentological responses to regional allogenic events, which can be mistakenly interpreted as sedimentological responses to local autogenic events.
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Hudson, Austin Scott. "Applications of Remote Sensing to the Study of Estuarine Physics: Suspended Sediment Dynamics in the Columbia River Estuary." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/2093.

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Estuarine circulation and its associated transport processes drive the environmental integrity of many near-shore habitats (the coastal ocean, rivers, estuaries and emergent wetlands). A thorough understanding and consideration of this circulation is, therefore, vital in the proper management of these habitats. The aim of this study is to bring together theory and new satellite observations in the Columbia River Estuary to increase our understanding of estuarine circulation and transport. Surface reflectance measurements gathered by the Moderate Imaging Spectroradiometer (MODIS) are first compared to in situ observations to develop an empirical model for remotely derived surface turbidity. Results indicate that MODIS data significantly correlate with in situ measurements of turbidity throughout the CRE (R2 = 0.96). Remote estimates of turbidity are then used to explore the physical processes that drive their spatial distribution. Although the response to different hydrodynamic conditions varies throughout the system, global levels of turbidity are most sensitive to fluvial and tidal inputs and increase during spring tides and high river flow. As a result, the turbidity field has temporal cycles that are consistent with the frequency of these processes. The location of the estuarine turbidity maximum (ETM) is highly dynamic and typically migrates downstream as the tidal velocity or river flow increases. The ETM becomes trapped near the Megler Bridge (river kilometer 20), however, and the presence of strong topography in this region suggests there exists an interaction between bottom topography and sediment transport. A 2-D semi-analytical model, developed herein from the simplified Navier-Stokes equations, confirms that topographic features exhibit substantial influence on longitudinal turbidity distributions. The model considers the coupled, tidally-averaged velocity (composed of gravitational circulation, internal tidal asymmetry, and river flow) and salinity fields and assumes a condition of morphodynamic equilibrium to estimate the distribution of sediment for arbitrary channel configurations. Model simulations demonstrate that topographic highs tend to increase local seaward sediment fluxes, and that topographic lows increase local landward sediment fluxes. Sediment flux convergence near topographic highs compresses the local turbidity distribution, whereas flux divergence near topographic lows dilates the distribution and, under appropriate conditions, produces multiple ETMs. In summary a combination of the model and satellite data has given valuable new insights into the sediment dynamics of estuarine environments; in particular, both show that turbidity distribution and ETM location vary considerably with tidal and river flow conditions, fluctuating on a variety of timescales, and are heavily influenced by bottom topography.
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Linde, Tamara Causer. "Relational Database Analysis of Dated Prehistoric Shorelines to Establish Sand Partitioning in Late Holocene Barriers and Beach Plains of the Columbia River Littoral Cell, Washington and Oregon, USA." PDXScholar, 2014. https://pdxscholar.library.pdx.edu/open_access_etds/1696.

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Studies of episodic shoreline accretion of the Columbia River Littoral Cell (CRLC) have been ongoing since 1964. In this study, the sediment volumes in the late Holocene barriers and beach plains are compiled and formatted in GIS compatible databases for the four sub-cells of the CRLC. Initial evaluation involved the creation of a geodatabase of 160 dated retreat scarp positions, that were identified on across-shore GPR and borehole profiles. Ten primary timelines were identified throughout the CRLC (0-4700 ybp) and those were used to develop polygon cells. Elevation, distance measurements, and position information were all linked to the polygon through a centroid location within the geodatabase. Once the geodatabase was completed, data was imported into MSAccessTM to create a relational database that would allow for examination of the littoral cell in its entirety or of the individual sub-cells. Within the database, sediment volumes, ages, accretion rates, sediment thicknesses, and timeline relationships were calculated and recorded. Using the database, the accretion history of the Columbia River Littoral Cell was evaluated and this examination illustrated the complexity of the system. Northern littoral transport was shown to be an important factor in the development of the littoral cell as a whole. Total sediment volume in the littoral cell was calculated to be 1.74 x 109 m3, with a mean accretion rate of 1.90 x 104 m3/yr, which is significantly less than some previous studies. This is due to a more detailed analysis of the beach and foredune facies themselves. This is likely the result of the higher precision of beach and foredune surface information using LiDAR. The database shows that the developmental history of the CRLC is dependent on temporal and spatial constraints that can be coupled with reverse modeling to predict shoreline erosion trends from impounded river sediments and potential global sea level rise. The North Beaches and Grayland Plains sub-cells have the greatest potential for future erosion; followed by the Clatsop Plains sub-cell.
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Moftakhari, Rostamkhani Hamed. "A Novel Approach to Flow and Sediment Transport Estimation in Estuaries and Bays." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2185.

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Reliable estimates of river discharge and sediment transport to the ocean from large tidal rivers are vital for water resources management, efficient river and harbor management, navigational purposes, and climate analyses. Due to the difficulties inherent in measuring tidal-river discharge, hydrological and sedimentological records are typically too short to adequately characterize long-term (decadal) trends. Also, uncertainties associated with observation and calibration of hydrological models suggest a need for more accurate methods based on longer records of hydrodynamic parameters (e.g. tides). Tidal theory indicates that tides and river discharge interact through quadratic bed friction, which diminishes and distorts the tidal wave as discharge increases. In this study, using tidal constituents, astronomical forcing and a model of the frictional interaction of flow and tides, I propose a novel Tidal Discharge Estimate (TDE) to predict freshwater discharge with an approximate averaging interval of 18 days for time periods with tidal data but no river flow records. Next, using continuous wavelet analysis of tidal properties, I develop a method of estimating river discharge using tides measured on multiple gages along tidal rivers to improve the time-resolution and accuracy of TDE. The applicability of the Multiple-gauge Discharge Estimate (MTDE) is first demonstrated in the two largest tidal-fluvial systems of the Pacific Northwest, the Columbia River Estuary (CRE) and Fraser River Estuary (FRE). A numerical model of an idealized estuary with similar forcing as the FRE and CRE is next run under different hydrologic and morphologic scenarios to evaluate the effect of convergence, friction, and river flow variations on the applicability of MTDE. The TDE method was applied to the San Francisco Bay, using the continuous hourly tide record available since 1858. Results show that TDE reproduces known San Francisco (SF) Bay delta inflows from 1930-present with a Nash-Sutcliffe coefficient of 0.81 and is a useful method for hindcasting historical flows from 1858 - 1929, a period that predates direct measurement of delta discharge. I also recover and digitize ~80 years of Sacramento River daily water level data between 1849 and 1946, from which river discharge to SF Bay is estimated on a daily basis, after adjusting for changes to the river channel. This discharge combined with Net Delta Outflow Index estimates (1930 - 2011) and flow estimates from tidal data (1858 - 2011) provides a more accurate version of SF Bay historic daily inflows from 1849 - 2011. Next, the history of sediment transport and discharge into SF Bay from 1849-present is reevaluated using the daily discharge estimates. A non-stationary rating curve between river flow and sediment transport is developed, with net sedimentation observed during five bathymetric surveys that were used to constrain the total integrated sediment discharge. Results show that ~1600±320 million-tons of sediment have been delivered to SF Bay between 1850 and 2011. There has been an approximately 25 - 30% reduction of annual flow since the 19th century, along with decreased sediment supply. This has resulted in a ~60% reduction in annual sediment delivery to SF Bay. The annual hydrograph of inflow to SF Bay and the seasonality of sediment flux have changed considerably over time, due to both human alteration and climate change. Significant historic spring-melt peak floods have disappeared in the modern system and now peak flows mostly occur in winter. My flow estimation methods also confirm that the flood of January 1862 had the largest daily sediment load and the second largest daily discharge since 1849.
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Mestrinho, Suely Schuartz Pacheco. "Estudo do comportamento geoquímico dos metais pesados nos sedimentos da região estuarina do Rio Paraguaçu - Bahia." Universidade de São Paulo, 1998. http://www.teses.usp.br/teses/disponiveis/44/44133/tde-22102015-153535/.

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Este estudo foi desenvolvido na região estuarina do rio Paraguaçu, caracterizada por um sistema transicional de influências fluvial, controlada pela descarga da barragem de Pedra do Cavalo, e marinha, proveniente das águas da baía de Todos os Santos. Com o objetivo de verificar a distribuição e o comportamento geoquímico do Cu, Cd, Pb, Cr, Zn, Fe, Al e Mn no material particulado em suspensão e nos sedimentos de fundo, quinze pontos de amostragem foram investigados ao longo do complexo estuarino, durante oito campanhas planejadas, entre o período 1994-1995, de acordo com a sazonalidade e a dinâmica das marés de sizígia e quadratura. Um ponto fixo foi monitorado para o material particulado em suspensão e parâmetros físico-químicos associados, durante doze horas, em diferentes ciclos de marés enchente e vazante. Os resultados sugerem que a distribuição dos metais é influenciada pelos efluentes locais e dinâmica das marés. Durante as marés de sizígia os metais são importados da baía de Todos os Santos, junto ao material particulado em suspensão que entra no sistema estuarino. O sedimento de fundo parece estar atuando como reservatório semi-permanente e acumulador de metais no ecossistema. Também nas marés de sizígia, o material fino do sedimento é ressuspenso e incorporado ao material particulado em suspensão, presente na coluna d\'água. As variações não são significantes, conforme os fluxos e refluxos diários da maré. O processo de acumulação resulta em concentrações particularmente elevadas de metais, que se encontram no sedimento de fundo sob formas pouco disponíveis para a biota aquática. Os valores mais altos de Cu, Zn, Cr e Fe são encontrados próximos as cidades de Cachoeira e São Félix e de Cu, Cd, Pb, Zn, Cr, Fe e Mn na foz do rio na baía de Todos os Santos, o que sinaliza a influência das ações antrópicas nestas áreas. Considerando-se a hidrodinâmica do sistema, a metodologia usada mostra-se adequada para o monitoramento de zonas estuarinas em ambientes tropicais. Os valores médios registrados para o ano de 1995, são referências importantes para acompanhar as mudanças produzidas por um aumento na contaminação.
This present study was carried out on Paraguaçu River estuarine área. This area is characterized by having a transitional system of fluvial and marine influences, controlled by discharges come from both Pedra do Cavalo dam and waters from Todos os Santos Bay. Fifteen sampling sites along the estuarine complex were investigated on eight planned campaigns between 1994 and 1995, in order to verify the distribution and geochemical behavior of Cu, Cd, Pb, Cr, Zn, Fe, Al, Mn considering seasonably and dynamics of spring and neap tides. One specific site was monitored for suspended particulate material as well as physical-chemical parameters during twelve hours covering different cycles of flood and ebb tide. Results indicate that distribution of metals is influenced by local waste and tide dynamics. Metals are imported from Todos os Santos Bay during spring tide along with suspended particulate material flushed into the estuarine system. The bottom sediment apparently acts as a semi-permanent reservoir, accumulating metals in the eco-system. Also, during spring tide, the sediment\'s fine material is re-suspended and therefore incorporates the suspended particulate material floating in the water. Variations due to daily changes in the flow of tides are not significant. The accumulation process results in particularly high concentrations of metals lying in bottom sediments under circumstances which make them hardly available for the aquatic biota. Highest values of Cu, Zn, Cr, Fe were found at sites closest to cities of Cachoeira and São Felix while highest values of Cu, Cd, Pb, Zn, Cr, Fe, Mn were found by the mouth of the river at Todos os Santos Bay, indicating these areas are influenced by surrounding antropogenic activity. Considering the system\'s hydro-dynamics, the methodology applied proves itself adequate for monitoring estuarine zones in tropical environments. Average values registered during the year of 1995 are important references in order to understand changes produced by increase in contamination.
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José, de Oliveira Barbosa Maria. "Estudos sedimentológicos do estuário do rio Timbó-PE." Universidade Federal de Pernambuco, 2006. https://repositorio.ufpe.br/handle/123456789/6528.

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Made available in DSpace on 2014-06-12T18:05:47Z (GMT). No. of bitstreams: 2 arquivo6818_1.pdf: 6399289 bytes, checksum: 564494a576e6874c1daa548cf4f0a717 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2006
O estuário do rio Timbó está localizado na praia de Maria Farinha, Pernambuco, abrangendo uma área de quase 1 400ha. Visando preencher uma lacuna de conhecimento sobre aspectos sedimentológicos desta zona estuarina, análises texturais, granulométricas, morfoscópicas e cálculo de parâmetros estatísticos foram realizados em 46 pontos de amostragem, em transectos de uma margem à outra. Estas análises subsidiaram a elaboração de mapas temáticos. A fração areia prepondera, com maiores concentrações na desembocadura e nas áreas de deságüe dos arroios Desterro e da Fábrica. Resultados platicúrticos e muito platicúrticos são observados no estuário médio e sudeste do estuário superior, indicando áreas de moderada energia e menor grau de seleção. Os valores leptocúrticos a muito leptocúrticos prevalecem no inferior sugerindo maior atuação de energia, apesar de os sedimentos não se apresentarem bem selecionados. As amostras revelaram assimetria desde muito negativa a muito positiva, indicando mistura de sedimentos de diversas fontes, e vários processos geológicohidrodinâmicos contribuindo na configuração dos depósitos sedimentares. Apresentam quartzo transparente, subanguloso a anguloso, com esfericidade de baixa à média. Os componentes biogênicos são representados por foraminíferos bentônicos, planctônicos marinhos, ostracodes mixohalinos, fragmentos de biválvios, gastrópodos, espinhos rolados de equinóides marinhos e restos lenhosos. As características ambientais do estuário do rio Timbó têm aspectos de grande potencial. As informações sedimentológicas adquiridas poderão auxiliar na adequada gestão ambiental do ecossistema, e fundamentar estudos sobre sua gênese e evolução
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Books on the topic "Estuarine sedimentology"

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Coon, William F. Hydrology, sedimentology, and biology of Ellison Park wetland at the mouth of Irondequoit Creek near Rochester, New York. Ithaca, N.Y: U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

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Nearshore and Estuarine Cohesive Sediment Transport Conference (4th 1994 Wallingford, England). Cohesive sediments: 4th Nearshore and Estuarine Cohesive Sediment Transport Conference, INTERCOH '94, 11-15 July 1994, Wallingford, England, UK. Chichester: John Wiley, 1997.

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Sedimentología del estuario del río Guadiana: (S.O. España-Portugal). Huelva: Industrias Químicas y Básicas, 1995.

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(Editor), Duncan M. FitzGerald, and Jasper Knight (Editor), eds. High Resolution Morphodynamics and Sedimentary Evolution of Estuaries (Coastal Systems and Continental Margins) (Coastal Systems and Continental Margins). Springer, 2005.

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Uncles, R. J., and S. B. Mitchell. Estuarine and Coastal Hydrography and Sedimentology. Cambridge University Press, 2017.

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6

Coastal and estuarine environments: Sedimentology, geomorphology and geoarchaeology. London: Geological Society, 2000.

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7

(Editor), Kenneth Pye, and John R. L. Allen (Editor), eds. Coastal and Estuarine Environments: Sedimentology, Geomorphology and Geoarchaeology (Geological Society Special Publication, Number 175). Geological Society of London, 2000.

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8

E, Perillo G. M., ed. Geomorphology and sedimentology of estuaries. Amsterdam: Elsevier, 1995.

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9

E, Perillo G. M., ed. Geomorphology and sedimentology of estuaries. Amsterdam: Elsevier, 1996.

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Geomorphology and Sedimentology of Estuaries. Elsevier, 1995. http://dx.doi.org/10.1016/s0070-4571(05)x8019-0.

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Book chapters on the topic "Estuarine sedimentology"

1

MacDonald, Donald D., and Christopher G. Ingersoll. "Tools for Assessing Contaminated Sediments in Freshwater, Estuarine, and Marine Ecosystems." In Sedimentology of Aqueous Systems, 171–99. Oxford, UK: Wiley-Blackwell, 2010. http://dx.doi.org/10.1002/9781444317114.ch7.

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Chamley, Hervé. "Estuaries and Deltas." In Clay Sedimentology, 97–116. Berlin, Heidelberg: Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-85916-8_5.

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Tessier, Bernadette. "Stratigraphy of Tide-Dominated Estuaries." In Principles of Tidal Sedimentology, 109–28. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0123-6_6.

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Dalrymple, Robert W., Duncan A. Mackay, Aitor A. Ichaso, and Kyungsik S. Choi. "Processes, Morphodynamics, and Facies of Tide-Dominated Estuaries." In Principles of Tidal Sedimentology, 79–107. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0123-6_5.

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Jay, D. A., S. A. Talke, A. Hudson, and M. Twardowski. "Estuarine turbidity maxima revisited." In Developments in Sedimentology, 49–109. Elsevier, 2015. http://dx.doi.org/10.1016/b978-0-444-63529-7.00004-3.

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Dalrymple, Robert W., and Robert N. Rhodes. "Chapter 13 Estuarine Dunes and Bars." In Developments in Sedimentology, 359–422. Elsevier, 1995. http://dx.doi.org/10.1016/s0070-4571(05)80033-0.

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Bynum, Gretchen Luepke. "Chapter 23 Heavy-Mineral Provenance in an Estuarine Environment, Willapa Bay, Washington, USA: Palaeogeographic Implications and Estuarine Evolution." In Developments in Sedimentology, 587–605. Elsevier, 2007. http://dx.doi.org/10.1016/s0070-4571(07)58023-4.

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Flemming, B. W. "Geology, Morphology, and Sedimentology of Estuaries and Coasts." In Treatise on Estuarine and Coastal Science, 7–38. Elsevier, 2011. http://dx.doi.org/10.1016/b978-0-12-374711-2.00302-8.

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9

Gingras, Murray K., James A. MacEachern, Shahin E. Dashtgard, John-Paul Zonneveld, Jesse Schoengut, Michael J. Ranger, and S. George Pemberton. "Estuaries." In Developments in Sedimentology, 463–505. Elsevier, 2012. http://dx.doi.org/10.1016/b978-0-444-53813-0.00016-2.

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Cooper, Andrew, Ian Wright, and Tom Mason. "Geomorphology and sedimentology." In Estuaries of South Africa, 5–26. Cambridge University Press, 1999. http://dx.doi.org/10.1017/cbo9780511525490.002.

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