Bibliografie tematiche / Sediment

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Letteratura scientifica selezionata sul tema "Sediment"

Autore: Grafiati
Pubblicato: 4 giugno 2021
Ultima modifica: 25 luglio 2025

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Articoli di riviste sul tema "Sediment"

1

Kamiludin, Udaya, and Yudi Darlan. "KARAKTERISTIK PASIR DI PANTAI DAN LEPAS PANTAI BINUANGEUN, LEBAK-BANTEN." JURNAL GEOLOGI KELAUTAN 11, no. 2 (2016): 79. http://dx.doi.org/10.32693/jgk.11.2.2013.235.

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Abstract (sommario):
Pasir merupakan sesuatu penomena yang menarik karena padanya tersimpan misteri bagaimana partikel itu terendapkan sesuai dengan lingkungannya, apakah merupakan pasir pada lingkungan marin, pantai atau sungai. Untuk mengetahui lingkungan pengendapan tersebut maka dilakukan identifikasi karakteristik pasirnya. Metoda penelitan meliputi pengambilan contoh, analisis besar butir, klasifikasi nomenklatur sedimen dan parameter statistik. Klasifikasi nomenklatur sedimen pada endapan sedimen permukaan dasar laut, gisik pasir, tanggul gisik dan endapan sungai aktif didapat pasir sebanyak, masing masing
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2

Hasteti, Mita, Tri Apriadi, and Winny Retna Melani. "Komposisi dan Kepadatan Mikroplastik di Sedimen Perairan Pulau Los, Kota Tanjungpinang, Kepulauan Riau." Journal of Marine Research 12, no. 3 (2023): 455–64. http://dx.doi.org/10.14710/jmr.v12i3.36691.

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Abstract (sommario):
Penelitian ini dilatarbelakangi oleh adanya keberadaan sampah plastik di sedimen perairan Pulau Los, Kota Tanjungpinang. Tujuan dari penelitian ini adalah untuk mengetahui komposisi dan kepadatan jenis mikroplastik serta perbedaan antara nilai rata-rata kepadatan mikroplastik pada setiap jenis sedimen di Pulau Los, Kota Tanjungpinang. Penelitian ini dilaksanakan pada bulan Mei-Juli 2022. Pengambilan sampel menggunakan metode Random Sampling di 30 titik dengan satu kali pengambilan sampel. Sampel sedimen diambil menggunakan transek kuadran ukuran 0,5x0,5 m pada kedalaman 5 cm. Sampel sedimen ke
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3

Hasteti, Mita, Tri Apriadi, and Winny Retna Melani. "Komposisi dan Kepadatan Mikroplastik di Sedimen Perairan Pulau Los, Kota Tanjungpinang, Kepulauan Riau." Journal of Marine Research 12, no. 3 (2023): 455–64. http://dx.doi.org/10.14710/jmr.v12i3.36691.

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Abstract (sommario):
Penelitian ini dilatarbelakangi oleh adanya keberadaan sampah plastik di sedimen perairan Pulau Los, Kota Tanjungpinang. Tujuan dari penelitian ini adalah untuk mengetahui komposisi dan kepadatan jenis mikroplastik serta perbedaan antara nilai rata-rata kepadatan mikroplastik pada setiap jenis sedimen di Pulau Los, Kota Tanjungpinang. Penelitian ini dilaksanakan pada bulan Mei-Juli 2022. Pengambilan sampel menggunakan metode Random Sampling di 30 titik dengan satu kali pengambilan sampel. Sampel sedimen diambil menggunakan transek kuadran ukuran 0,5x0,5 m pada kedalaman 5 cm. Sampel sedimen ke
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4

Ooi, Jieun Lin, Lee Woen Ean, Bashar S. Mohammed, et al. "Study on the Properties of Compressed Bricks Using Cameron Highlands Reservoir Sediment as Primary Material." Applied Mechanics and Materials 710 (January 2015): 25–29. http://dx.doi.org/10.4028/www.scientific.net/amm.710.25.

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Abstract (sommario):
This research is to investigate the properties of compressed building bricks producedfrom Cameron Highlands reservoir sediment. The particle size distribution of the sediments are graded as silt and sand. The sediments used were as total replacement of the normal soils used in the compressed soil bricks. This paper presents the compilation of experimental brick properties; compressive strength, water absorption, microstructure and heavy metal leachingof the compressed sediment bricks. The experimental results shows that increasing use of reservoir sediments decrease the compressive strength an
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5

Kurnio, Hananto, and Noor C. D. Aryanto. "THE RELATIONSHIP OF SEAFLOOR SURFACIAL SEDIMENT WITH SEABOTTOM MORPHOLOGY OF LEMKUTAN ISLAND WATER, WEST KALIMANTAN." BULLETIN OF THE MARINE GEOLOGY 28, no. 2 (2016): 13. http://dx.doi.org/10.32693/bomg.28.2.2013.56.

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Abstract (sommario):
Sea floor sediment surrounding Lemukutan Island, West Kalimantan is distributed on rather steep sea bottom morphology. The steep bottom seems a continuation of rugged morphology of the island, especially at the northeast and southeast parts. This paper discusses the relation between sediment grain sizes and the steepness of sea bottom morphology. Grain size analyses of sediment shows various sediment types such as slightly gravelly muddy sand, gravel mostly composed of coral and lithic, and gravelly sand. Results show that steepness of sea bottom slope control deposited sediment types, coarse
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6

Hernawan, Undang, and Kris Budiono. "KARAKTERISTIK DAN DISTRIBUSI LUMPUR SIDOARJO SEPANJANG SUNGAI, ESTUARI DAN PERAIRAN PORONG." JURNAL GEOLOGI KELAUTAN 11, no. 2 (2016): 91. http://dx.doi.org/10.32693/jgk.11.2.2013.234.

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Abstract (sommario):
Semburan lumpur Sidoarjo (Lusi) di daerah Porong menambah fungsi Sungai Porong menjadi sarana untuk mengalirkan lumpur ke arah laut, karena kemampuan tanggul – tanggul penghalang di sekitar lokasi semburan sangat terbatas. Kondisi ini berdampak pula terhadap terbawanya lumpur lapindo ke perairan Porong. Penelitian ini bermaksud untuk mengetahui sebaran sedimen di sungai, muara dan perairan sekitar Porong terutama yang bersumber dari luapan lumpur Sidoarjo.
 Materi yang digunakan dalam penelitian ini adalah sebanyak 30 sampel sedimen hasil sampling yang diambil di lokasi sungai – muara
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7

Setiady, Deny, and Ediar Usman. "KANDUNGAN MINERAL PADA SEDIMEN PANTAI DAN LAUT, HUBUNGANNYA DENGAN BATUAN SUMBER DI PESISIR KABUPATEN REMBANG, JAWA TENGAH." JURNAL GEOLOGI KELAUTAN 9, no. 3 (2016): 135. http://dx.doi.org/10.32693/jgk.9.3.2011.206.

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Sedimen di sepanjang pantai Kabupaten Rembang terdiri atas sedimen muda (aluvial) dan sedimen tua (breksi dan batugamping). Sedimen muda merupakan sedimen lepas dan terdapat di daerah sedimentasi. Sedimen tua berupa sedimen kompak yang secara fisik mempunyai resisitensi tinggi terhadap abrasi
 Batuan yang terdapat di kawasan pesisir adalah: pasir kuarsa, andesit, tras kaolin, batugamping, batubara dan lempung. Peta sebaran sedimen dasar laut perairan Kabupaten Rembang, menunjukkan dominasi endapan pasir, lanau (pasir halus) dan lanau pasiran (pasir halus - kasar). 
 Kandungan mineral
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Hamidah, Siti, Sugeng Widada, Sri Yulina Wulandari, and Lilik Maslukah. "Sebaran Sedimen Dasar Di Perairan Teluk Awur Jepara, Jawa Tengah." Buletin Oseanografi Marina 13, no. 2 (2024): 261–70. http://dx.doi.org/10.14710/buloma.v13i2.53955.

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Berbagai aktivitas manusia di Pesisir Teluk Awur yang berupa kegiatan pertambakan, pariwisata, pemukiman, pertanian dan operasional kampus pendidikan (Marine Science Teckno Park/MSTP) berpengaruh terhadap proses geomorfologi pantai dan masukan bahan pencemar ke perairan. Proses geomorfologi pantai dan sebaran bahan pencemar tersebut dipengaruh oleh sedimen yang tertranport dan terendapkan sebagai sedimen dasar. Oleh karena itu perlu dipetakan sebaran sedimen dasar di Perairan Teluk Awur tersebut yang ditetapkan sebagai tujuan dalam penelitian ini. Penelitian ini dilakukan pada Bulan Oktober 20
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9

Najamuddin, Najamuddin, Irmalita Tahir, Rustam E. Paembonan, and Inayah Inayah. "Pengaruh Karakteristik Sedimen terhadap Distribusi dan Akumulasi Logam Berat Pb dan Zn di Perairan Sungai, Estuaria, dan Pantai." Jurnal Kelautan Tropis 23, no. 1 (2020): 1. http://dx.doi.org/10.14710/jkt.v23i1.5315.

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Abstract (sommario):
The purpose of the study was to analyze the effect of surface sediment characteristics including texture, organic carbon content, and redox potential of sediments on the distribution and accumulation of heavy metals Pb and Zn in three different water zones of each river, estuary and coast. Sediment texture was determined by pipette method, organic carbon content in sediments using Walkley and Black method, redox potential of sediments measured by Eh Meter, and concentrations of heavy metals Pb and Zn in sediments with Atomic Absorption Spectrophotometer with graphite furnace system. The result
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Suryono, Chrisna Adhi, Ibnu Pratikto, and Ajeng Rusmaharani. "Logam Berat Anthropogenik Pb dan Cu pada Lapisan Sedimen Permukaan dan Dasar Muara Sungai di Kota Semarang, Jawa Tengah Indonesia." Jurnal Kelautan Tropis 22, no. 1 (2019): 87. http://dx.doi.org/10.14710/jkt.v22i1.3223.

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Abstract (sommario):
Semarang coastal areas as specially on river down stream have been develop to industrial, dumpping areas and human settlement. Its will be caused increasing sedimentation and anthropogenic heavy metals accumulation in sediments. In order to assess Pb, and Cu on diferent layers of sediments on three down stream rivers on Semarang, samples of surface and bed sediment were collected for analyzed by ICPMS. The result showed that the heavy metal of Pb on bed layer was higher than Pb on surface sediment, on the other hand Cu on surface sediment was higher than Cu on bed sediments. Unfraternally the
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Tesi sul tema "Sediment"

1

Bornemann, André, Thomas C. Brachert, and Werner Ehrmann. "SEDIMENT 2011 Sediments: Archives of the Earth System: SEDIMENT 2011Sediments: Archives of the Earth System." ?, 2011. https://ul.qucosa.de/id/qucosa%3A11218.

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Abstract (sommario):
This volume comprises ninety-one contributions to the Sediment 2011 conference of the Central European section of the Society for Sedimentary Geology (SEPM-CES) and the Geologische Vereinigung (GV) at the University of Leipzig held in June 2011. The central theme of this meeting was “Sediments: Archives of the Earth System” in order to bring together young and established researchers from all fields of soft-rock geology and beyond to shape a stimulating interdisciplinary program on the role of sediments in understanding the System Earth and the evolution of paleoenvironments and climate throug
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2

Sherwood, Christopher R. "Measurements and modeling of suspended-sediment transport on the northern California continental shelf /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/11014.

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Guerra, Josefa Varela. "Interannual variability of nearbed sediment flux and associated physical processes on the Eel River shelf, Northern California, USA /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/11000.

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4

Suedel, Burton C. (Burton Craig). "Sediment Characteristics and Bioavailability of Sorbed Neutral Organic Compounds." Thesis, University of North Texas, 1989. https://digital.library.unt.edu/ark:/67531/metadc500652/.

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Abstract (sommario):
Several sediment characteristics were analyzed to determine their suitability for use as potential normalization factors for the bioavailability of neutral organic compounds sorbed to sediments. Percent organic carbon, cation exchange capacity and particle surface area were measured sediment characteristics that varied sufficiently to encompass the range in observed sediment toxicity. Laboratory sediment toxicity test data using fluoranthene suggest that there is no biologically significant correlation between sediment toxicity and sediment characteristics (organic carbon, cation exchange capa
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5

Franz, Claudia. "Sediments in a fast urbanizing catchment in Central Brazil – an analysis of anthropogenic impacts on sediment geochemistry and sediment sources." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-171959.

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Abstract (sommario):
Over the last decades, fast urban sprawl and accelerated land use change have drastically increased the pressure on water resources of the capital Brasília and its surrounding area. The water supply of the metropolitan region of Brasília depends largely on surface water collected in reservoirs. There are increasing concerns regarding water shortages due to sediment aggradations, and of water quality due to geochemical modification of sediments from human activities. The complexity of various socio-environmental problems, such as non-point source pollution, soil erosion or silting of water rese
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6

Tarekegn, Tesfaye Haimanot. "Downstream suspended sediment dynamics of reservoir sediment flushing." Thesis, Queen Mary, University of London, 2016. http://qmro.qmul.ac.uk/xmlui/handle/123456789/12963.

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Abstract (sommario):
Reservoir sediment flushing is increasingly considered beneficial to reduce sedimentation of reservoirs and maintain sediment supply downstream of impounded rivers. Nevertheless, flushing of the accumulated sediments downstream of the dam also bears numerous negative impacts. In this study, first the most important downstream impacts of fine sediment releases of flushing were identified based on previously published research of twenty case studies in eleven countries. The results showed that the long-term as well as short term biological and physical impacts decreased with distance from the da
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Tarekegn, Tesfaye Haimanot. "Downstream suspended sediment dynamics of reservoir sediment flushing." Doctoral thesis, Università degli studi di Trento, 2015. https://hdl.handle.net/11572/369112.

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Abstract (sommario):
Reservoir sediment flushing is increasingly considered beneficial to reduce sedimentation of reservoirs and maintain sediment supply downstream of impounded rivers. Nevertheless, flushing of the accumulated sediments downstream of the dam also bears numerous negative impacts. In this study, first the most important downstream impacts of fine sediment releases of flushing were identified based on previously published research of twenty case studies in eleven countries. The results showed that the long-term as well as short term biological and physical impacts decreased with distance from the da
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Tarekegn, Tesfaye Haimanot. "Downstream suspended sediment dynamics of reservoir sediment flushing." Doctoral thesis, University of Trento, 2015. http://eprints-phd.biblio.unitn.it/1646/1/TesfayeTarekegn_PhDThesis_2015.pdf.

Testo completo
Abstract (sommario):
Reservoir sediment flushing is increasingly considered beneficial to reduce sedimentation of reservoirs and maintain sediment supply downstream of impounded rivers. Nevertheless, flushing of the accumulated sediments downstream of the dam also bears numerous negative impacts. In this study, first the most important downstream impacts of fine sediment releases of flushing were identified based on previously published research of twenty case studies in eleven countries. The results showed that the long-term as well as short term biological and physical impacts decreased with distance from the da
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9

Kularatne, Kottabogoda Angidigedera Samantha Rangajeewa. "Factors influencing sediment re-suspension and cross-shore suspended sediment flux in the frequency domain." University of Western Australia. School of Environmental Systems Engineering, 2006. http://theses.library.uwa.edu.au/adt-WU2007.0005.

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Abstract (sommario):
[Truncated abstract] With rapidly increasing population densities along coastlines and rising global sea levels, coastal protection has become a major concern for coastal communities. Predicting sediment transport in nearshore regions, however, is one of the most challenging tasks faced by coastal researchers in designing coastal structures or beach nourishment schemes. Although nearshore sediment transport mainly occurs in the longshore direction, cross-shore sediment transport is crucial in determining the shoreline evolution and beach morphology . . . This study investigated the factors inf
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Sell, Karen S. "Temporal influences of seasonal hypoxia on sediment biogeochemistry in coastal sediments." Thesis, Texas A&M University, 2003. http://hdl.handle.net/1969.1/1142.

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Bottom water hypoxia and its influence on the environment have been topics of increasing concern for many coastal regions. This research addresses both spatial and temporal variability in sediment biogeochemistry at the southeastern region of Corpus Christi Bay, TX, where seasonal (summer) hypoxia occurs. Traditional techniques for determination of a variety of dissolved and solid components, benthic oxygen demand, and sulfate reduction rates were augmented by measurements using solid state microelectrodes to simultaneously determine concentrations of dissolved O2, Mn2+, Fe2+, and [sigma]H2S
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Più fonti

Libri sul tema "Sediment"

1

Rose, William J. Sediment transport, particle size, and loads in North Fish Creek in Bayfield County, Wisconsin, water years 1990-91. U.S. Dept. of the Interior, U.S. Geological Survey, 1996.

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2

Banasik, Kazimierz. Model sedymentogramu wezbrania opadowego w małej zlewni rolniczej. Wydawn. SGGW, 1994.

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3

Partheniades, Emmanuel. Cohesive sediments in open channels: Properties, transport, and applications. Butterworth-Heinemann, 2009.

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4

1951-, Gray John R., Glysson G. Douglas, and Geological Survey (U.S.), eds. Introduction to suspended-sediment sampling. U.S. Geological Survey, 2005.

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5

Burkham, D. E. An approach for appraising the accuracy of suspended-sediment data. U.S. G.P.O., 1985.

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6

Burkham, D. E. An approach for appraising the accuracy of suspended-sediment data. Dept. of the Interior, U.S. Geological Survey, 1985.

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7

Neuendorf, Josefine. Urine Sediment. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-15911-5.

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Burt, Timothy P., and Robert J. Allison, eds. Sediment Cascades. John Wiley & Sons, Ltd, 2010. http://dx.doi.org/10.1002/9780470682876.

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9

Heininger, Peter, and Johannes Cullmann, eds. Sediment Matters. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14696-6.

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Ginsberg, Silvia Susana. Sediment transport. INTECH, 2014.

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Capitoli di libri sul tema "Sediment"

1

Boyd, Claude E. "Sediment." In Bottom Soils, Sediment, and Pond Aquaculture. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1785-6_7.

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Gooch, Jan W. "Sediment." In Encyclopedic Dictionary of Polymers. Springer New York, 2011. http://dx.doi.org/10.1007/978-1-4419-6247-8_10420.

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Schmieder, Robert William. "Sediment." In Heard Island. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-20343-5_15.

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Riedler, P., and Karl Donabaum. "Sediment." In The Alte Donau: Successful Restoration and Sustainable Management. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93270-5_7.

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Bährle-Rapp, Marina. "Sediment." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_9250.

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Pikelj, Kristina, and Nina Furčić. "Impact of cliff erosion on marine sediment composition - indication of local coastline evolution (Vrgada Island, Croatia)." In Proceedings e report. Firenze University Press, 2020. http://dx.doi.org/10.36253/978-88-5518-147-1.46.

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Erosive coastal cliffs formed in soft-rocks sediments along the generally carbonaceous Eastern Adriatic are a rare feature. The one from the Vrgada Island gave rise to the idea that local seabed surface sediment may reflect the composition of the cliff sediment. First results of sedimentological analyses showed that sediment samples collected on both sides of the cliff contain material eroded mostly from the eastern side of the cliff. Subsequent longshore drift caused by dominant waves likely sort fallen material, transporting its finer fractions to the northern side and further into the sea.
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Douglas, Audrey R., Paul A. Montagna, and Timothy Dellapenna. "Influence of Inflows on Estuary Sediments." In Estuaries of the World. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-70882-4_6.

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AbstractRivers deliver sediments, organic matter/carbon, contaminants, and nutrients from watersheds. Sediments form delta, estuarine, marsh, and wetland habitats. Most of the sediments are derived from weathered rocks that are transported by rivers during floods as both bedload (sand and gravel) and suspended load (silts and clays, i.e., mud). Siliciclastic sand can enter the estuary naturally through four mechanisms, which are: (1) shoreline erosion; (2) inflow from rivers; (3) advection into the bay via the flood tide, through tidal inlets and cuts; and (4) barrier island overwash. River-mo
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Cullmann, Johannes, and Peter Heininger. "Introduction." In Sediment Matters. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14696-6_1.

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Lalk, Petra, Marlene Haimann, and Helmut Habersack. "Application of a New Monitoring Strategy and Analysis Concept of Suspended Sediments in Austrian Rivers." In Sediment Matters. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14696-6_10.

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Netshitungulwana, Robert, Bisrat Yibas, Christoph Gauert, Danie Vermeulen, Obed Novhe, and Tshepa Motlakeng. "Investigation of the Metal Contamination in the Upper Olifants Primary Catchment by Using Stream Sediment Geochemistry, Witbank Coalfield, South Africa." In Sediment Matters. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-14696-6_11.

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Atti di convegni sul tema "Sediment"

1

Mohr, Henning, Scott Draper, and David White. "Free Field Sediment Mobility on Australia’s North West Shelf." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-11490.

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Under cyclonic conditions, sediment on the North West Shelf (NWS) of Australia may become mobile in shallow water due to classical sediment transport or local liquefaction, and this can affect, for example, the on-bottom stability of subsea pipelines. In this paper, three calcareous sediments sampled from the NWS are analysed, together with realistic metocean data, to illustrate this potential for sediment mobility on the NWS. Specifically, experiments are performed in a recirculating flume (known as an O-Tube) to measure the erosional behaviour and an additional series of experiments are perf
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2

Catianis, Irina, Adriana Maria Constantinescu, Dan-Lucian Vasiliu, Bogdan-Adrian Ispas, and Dumitru Grosu. "PHYSICAL AND CHEMICAL CHARACTERISTICS OF TATARU AND MERHEI LACUSTRINE SEDIMENTS, FROM THE DANUBE DELTA, ROMANIA." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/5.1/s20.042.

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The quality and quantity of delta lakes� sediment depend on fluvial input and in-situ bio-geo-chemical processes. The present study investigates the quality of lacustrine sediments collected from two lakes - Tataru and Merhei, situated in different hydrodynamic environments within the Danube Delta, Romania, but both connected to fluvial input of water and sediment of the Danube. The following physical and chemical analyses have been carried out on several lake-bottom sediment samples: the main lithological components (total organic matter-TOM%, total carbonates-CAR% and siliciclastic fraction-
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3

Zhang, Ning, Anpeng He, Jeff Corbino, Paul Schroeder, and Johnathan Bolton. "The Impacts of Confined Disposal Facilities on Calcasieu Ship Channel Sedimentation." In ASME 2013 Fluids Engineering Division Summer Meeting. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/fedsm2013-16160.

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Abstract (sommario):
The confined disposal facilities (CDFs) are the areas along Calcasieu Ship Channel to store dredged sediments from the ship channel. As the sediments settle in the CDFs, the low concentration sediment flows are discharged into the open water adjacent to the CDFs. The paper demonstrates flow and sediment transport characteristics in the open water due to the CDF discharge. The sediment distributions in all three dimensions in the water are revealed. The lake current effects were also investigated. A commercial CFD package ANSYS-FLUENT is used to simulate all cases in this study.
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4

Ong, Muk Chen, Lars Erik Holmedal, and Dag Myrhaug. "Numerical Computation of Suspended Sediment Around a Marine Pipeline Close to the Flat Seabed." In ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering. ASMEDC, 2011. http://dx.doi.org/10.1115/omae2011-49111.

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The purpose of this paper is to investigate suspended sediment transport around a marine pipeline near the seabed by solving the Unsteady Reynolds-Averaged Navier-Stokes (URANS) equations with the standard k-ε model. High Reynolds number flow simulations are considered in the present study. The suspended sediments are seeded upstream of the pipeline. Particle trajectories of the suspended sediments downstream of the pipeline have been visualized by using a Lagrangian approach. Effects of the gap (i.e. the normal distance between the pipeline and the seabed) and the sediment weight (i.e. taking
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5

Maherzi, Walid, Mahfoud Benzerzour, Nor-Edine Abriak, and Ahmed Senouci. "Marine Dredging Sediments Valorization in Self-Compacting Concretes." In The 2nd International Conference on Civil Infrastructure and Construction. Qatar University Press, 2023. http://dx.doi.org/10.29117/cic.2023.0086.

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Rock and eroded soil are transported by wind, tide, and human action (development works), and deposited as sediment in ports, estuaries, and rivers. The sediment accumulation at the bottom of ports disrupts maritime activities and disturbs the physicochemical balance of water bodies. As a result, dredging is necessary to reduce sediment deposits and restore the natural environment for proper port functioning. At the national level, the maintenance of the 6,500-kilometer French coastline would require the extraction of about fifty million cubic meters of marine sediment every year. These dredge
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6

Vrålstad, Torbjørn, Ragnhild Skorpa, and Arild Saasen. "Rheological Properties of Barite Sediments in Water-Based Drilling Fluids." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-78695.

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When a drilling fluid column remains static over a timeframe of several years, the drilling fluid separates into different sediment phases due to gravity separation. These heavy sediments, entitled “settled barite”, are the cause of significant operational problems several years after drilling. An important problem caused by settled barite occurs when performing casing cut-and-pull operations during slot recovery and well abandonment: the casing is “stuck” due to the sediments in the annulus outside the casing. The consistency and rheological properties of the sediments determine how easily th
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7

Chechko, Vladimir, Vladimir Chechko, Boris Chubarenko, and Boris Chubarenko. "SEDIMENT BALANCE OF THE VISTULA LAGOON." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.31519/conferencearticle_5b1b94303c55f9.63278465.

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Vistula Lagoon is the second largest lagoon in the Baltic Sea with maximum depth 5.2 m and average depth 2.7 m. Water volume and area are 2.3 km3 and 838 km2. Lagoon is connected with the Baltic Sea by single inlet 400 m wide and 10-12 m deep. Sediment budget estimation were made using literature sources, results of field measurements (hydrology, suspended sediment content, upper layer sediment structure, direct measurements of sedimentation in summer and winter conditions). The budget for terrigene and biogenic components of sediments were made, considering their contributions from the rivers
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8

Chechko, Vladimir, Vladimir Chechko, Boris Chubarenko, and Boris Chubarenko. "SEDIMENT BALANCE OF THE VISTULA LAGOON." In Managing risks to coastal regions and communities in a changing world. Academus Publishing, 2017. http://dx.doi.org/10.21610/conferencearticle_58b43153db8ae.

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Vistula Lagoon is the second largest lagoon in the Baltic Sea with maximum depth 5.2 m and average depth 2.7 m. Water volume and area are 2.3 km3 and 838 km2. Lagoon is connected with the Baltic Sea by single inlet 400 m wide and 10-12 m deep. Sediment budget estimation were made using literature sources, results of field measurements (hydrology, suspended sediment content, upper layer sediment structure, direct measurements of sedimentation in summer and winter conditions). The budget for terrigene and biogenic components of sediments were made, considering their contributions from the rivers
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9

Chi, Sang-Bum, Wonnyon Kim, Cheong-Kee Park, Chanmin Yoo, Youngtak Ko, and Jai-Woon Moon. "Relationship Between Manganese Nodule Distribution and Deep-Sea Sediment Properties in the Northeastern Pacific." In ASME 2012 31st International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/omae2012-83773.

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In order to identify a potential relationship between the spatial distribution of Mn-nodule and deep-sea sediment properties in the Clarion-Clipperton fracture zone of the northeastern Pacific, physico-chemical properties of deep-sea sediments and photos of sea-floor are analyzed. In general, sediment types in the area show dramatic changes with latitude. Compared to the middle sector (8–12°N) covered with biogenic siliceous sediments, the northern (16–17°N) and southern (5–6°N) areas are dominated by pelagic red clays and calcareous sediments, respectively. Such a difference in sediment types
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10

Abduev, M. A. "ANTHROPOGENIC TRANSFORMATION OF THE STOCK OF WEIGHED WEIGHTS OF THE MOUNTAIN RIVERS OF AZERBAIJAN." In Prirodopol'zovanie i ohrana prirody: Ohrana pamjatnikov prirody, biologicheskogo i landshaftnogo raznoobrazija Tomskogo Priob'ja i drugih regionov Rossii. Izdatel'stvo Tomskogo gosudarstvennogo universiteta, 2020. http://dx.doi.org/10.17223/978-5-94621-954-9-2020-60.

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Based on the data of network hydrometric observations over a multi-year period, the transformation of suspended sediments of mountain rivers of Azerbaijan into the stock has been estimated. To quantify the anthropogenic transformation of suspended sediment runoff, we analyzed the dependences of the average annual flow rates of suspended sediment and water, Rg = f (Qg); It was revealed that in connection with the construction of reservoirs, the natural regime of sediment runoff has radically changed.
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Rapporti di organizzazioni sul tema "Sediment"

1

Kuehl, Steven A. Extension of Sediment Geochronology to Coarse-Grained Sediments. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada572615.

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2

Li, Honghai, Carter Rucker, Lihwa Lin, and Kevin Conner. Use of sediment tracers to evaluate sediment plume at Beaufort Inlet and Adjacent Beaches, North Carolina. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48379.

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This report documents a numerical modeling investigation on the transport of sediment material placed on designated disposal sites adjacent to Beaufort Inlet, North Carolina. Historical and newly collected wave and hydrodynamic data around the inlet are assembled and analyzed. The data sets are used to calibrate and validate a coastal wave, hydrodynamic and sediment transport model, the Coastal Modeling System. Model alternatives are developed corresponding to different material placement sites. Sediment transport and sediment plume distribution are evaluated within and around the immediate vi
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3

Li, Honghai, Carter Rucker, Lihwa Lin, and Kevin Conner. Use of sediment tracers to evaluate sediment plume at Cape Fear River Inlet and Adjacent Beaches, North Carolina. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48380.

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This report documents a numerical modeling investigation on the transport of sediment material placed on designated disposal sites adjacent to Cape Fear River Inlet, North Carolina. Historical and newly collected wave and hydrodynamic data around the inlet are assembled and analyzed. The data sets are used to calibrate and validate a coastal wave, hydrodynamic, and sediment transport model, the Coastal Modeling System. Model alternatives are developed corresponding to different material placement sites. Sediment transport and sediment plume distribution are evaluated within and around the imme
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4

Perkey, David W., Anthony M. Priestas, Jeffrey M. Corbino, et al. Sediment Provenance Studies of the Calcasieu Ship Channel, Louisiana : A Synopsis Report. U.S. Army Engineer Research and Development Center, 2022. http://dx.doi.org/10.21079/11681/44905.

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Abstract (sommario):
To maintain the navigability of the Calcasieu Ship Channel (CSC), the US Army Corps of Engineers annually dredges millions of cubic yards of sediment from the inland channel. To assess sources of channel shoaling, a previous study examined river and bankline erosion as inputs. Results from that study accounted for approximately 20% of dredged volumes. Through the support of the Regional Sediment Management Program, a follow-up investigation reviewed prior sediment budgets, identified potential missing sediment sources, modeled potential sediment pathways, and utilized geochemical fingerprintin
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5

Perkey, David, David Yearwood, Brian McFall, et al. Hydraulic sorting of dredged sediment in a pipeline : an evaluation of the sediment distribution pipe. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48219.

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Abstract (sommario):
The US Army Corps of Engineers (USACE) recently established a goal to beneficially use 70% of material dredged from the nation’s navigable waterways by the year 2030. Most of the sediments dredged by the USACE are heterogeneous mixtures of mud and sand, which can limit beneficial use of dredged material (BUDM) applications. Innovative technologies that can sort material during the dredging process are needed to help increase BUDM practices. This investigation sought to evaluate the ability of a sediment distribution pipe (SDP) to sort particles during transport in a pipeline. Field demonstrati
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6

Gwiazda, R., G. Wiemer, D. H. Lee, and Y. H. Noh. Sediment coring. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/297873.

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7

Benoit, N., and A. J. M. Pugin. Sediment thickness. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2016. http://dx.doi.org/10.4095/298888.

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8

Stoll, Robert D. Sediment Acoustics. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada627985.

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9

Stoll, Robert D. Sediment Acoustics. Defense Technical Information Center, 1999. http://dx.doi.org/10.21236/ada630275.

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10

Gwiazda, R., D. H. Lee, Y. M. Lee, et al. Sediment coring. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/308405.

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