Results 21 to 30 of about 482,940 (315)

Foraminiferal assemblages in the Ubatuba Bay, south-eastern Brazilian Coast

Scientia Marina, 2006
Live benthic foraminifera assemblages were studied in 40 surface sediment samples collected in the Ubatuba Bay (northern coast of São Paulo State) in order to investigate the relationship between the geological, physicochemical parameters and the ...
Leticia Burone, Ana Maria S. Pires-Vanin
doaj   +1 more source

Sedimentary CaCO3 Accumulation in the Deep West Pacific Ocean

Frontiers in Earth Science, 2022
Distribution of calcium carbonate (CaCO3) in marine sediment has been studied over the last century, and influence by multiple factors with regard to dissolution and dilution of sedimentary CaCO3 has long been established.
Handan Zhang, Handan Zhang, Handan Zhang, Hong Che, Jinqi Xia, Qi Cheng, Di Qi, Junqian Cao, Yiming Luo, Yiming Luo, Yiming Luo   +10 more
doaj   +1 more source

Sediment structure and physicochemical changes following tidal inundation at a large open coast managed realignment site [PDF]

, 2018
Managed realignment (MR) schemes are being implemented to compensate for the loss of intertidal saltmarsh habitats by breaching flood defences and inundating the formerly defended coastal hinterland.
Andrew B. Cundy, Auxtero, Bergen, Berrow, Beven, Bone, Burton, Cnudde, Cochran, Cope, Costanza, Crooks, Crooks, Croudace, Cundy, Cundy, Cundy, Cundy, Dale, Dale, Dale, David J. Nash, Davy, Doherty, Doody, Elliott, Environment Agency, Erfanzadeh, Esteves, European Parliament and the Council of the European Commission, Foster, French, Hazelden, Heidi M. Burgess, Howe, Hvorslev, Ian W. Croudace, Johnston, Jonathan Dale, Kate L. Spencer, Ketcham, Koretsky, Krawiec, Luther, Marani, Mazik, Miller, Moller, Mossman, Odgaard, Pearce, Polder, Reid, Rowell, Rupprecht, Shennan, Shennan, Simon J. Carr, Spencer, Spencer, Spencer, Tempest, Violante, Vogel, Vranken, Watts, Wilson, Wolanski, Zwolsman   +68 more
core   +3 more sources

Geochemistry of reduced inorganic sulfur, reactive iron, and organic carbon in fluvial and marine surface sediment in the Laizhou Bay region, China [PDF]

, 2015
Understanding the geochemical cycling of sulfur in sediments is important because it can have implications for both modern environments (e.g., deterioration of water quality) and interpretation of the ancient past (e.g., sediment C/S ratios can be used ...
Bottrell, S, Mortimer, R, Sheng, Y, Shi, W, Sun, Q   +4 more
core   +1 more source

Use of rare earth oxides as tracers to identify sediment source areas for agricultural hillslopes [PDF]

, 2010
Understanding sediment sources is essential to enable more effective targeting of in-field mitigation approaches to reduce diffuse pollution from agricultural land.
Deasy, C., Quinton, John
core   +1 more source

Tuning sedimentation through surface charge and particle shape [PDF]

Geophysical Research Letters, 2021
Mud forms the foundation of many coastal and tidal environments. Clay suspensions carried downstream from rivers encounter saline waters, which encourages aggregation and sedimentation by reducing electrostatic repulsion among particles. We perform experiments to examine the effects of surface charge on both the rate and style of sedimentation, using ...
Ali Seiphoori, Andrew Gunn, Sébastien Kosgodagan Acharige, Paulo E. Arratia, Douglas J. Jerolmack   +4 more
openaire   +2 more sources

Solute Reservoirs Reflect Variability of Early Diagenetic Processes in Temperate Brackish Surface Sediments

Frontiers in Marine Science, 2018
Coastal marine sediments are a hotspot of organic matter degradation. Mineralization products of early diagenetic processes accumulate in the pore waters of the sediment, are subject of biological uptake and secondary biogeochemical processes and are ...
Marko Lipka, Jana Woelfel, Mayya Gogina, Jens Kallmeyer, Bo Liu, Claudia Morys, Stefan Forster, Michael E. Böttcher   +7 more
doaj   +1 more source

Radiocarbon reservoir ages from freshwater lakes, south Georgia, sub-Antarctic: Modern analogues from particulate organic matter and surface sediments [PDF]

, 2004
Lake sediments have the potential to preserve proxy records of past climate change. Organic material suitable for radiocarbon dating often provides age control of such proxy records.
Bentley, M.J., Davies, S.J., Moreton, S.G., Rosqvist, G.C.   +3 more
core   +1 more source

Estimating specific surface area of fine stream bed sediments from geochemistry [PDF]

, 2010
Specific surface area (SSA) of headwater stream bed sediments is a fundamental property which determines the nature of sediment surface reactions and influences ecosystem-level, biological processes.
Aitchison, Appleton, B.G. Rawlins, Ballantine, Ben-Dor, Breit, Breward, Brunauer, Cardinale, Evans, Fullen, Fuller, G. Turner, G. Wildman, Galy, Horowitz, I. Mounteney, Johnson, Mainstone, Mayer, Owens, Petersen, Rawlins, Schwertmann, Wagai, Wang, Withers   +26 more
core   +2 more sources

A cost-effective method to quantify biological surface sediment reworking [PDF]

, 2013
We propose a simple and inexpensive method to determine the rate and pattern of surface sediment reworking by benthic organisms. Unlike many existing methods commonly used in bioturbation studies, which usually require sediment sampling, our approach is ...
AD Huryn, Antoine Lecerf, AP Covich, B Statzner, BA Zanetell, E Kristensen, Eve De Nadaï-Monoury, F Gilbert, F Gilbert, F Mermillod-Blondin, F Mermillod-Blondin, Franck Gilbert, I Sanpera-Calbet, Julie Canal, JW Moore, K Hollertz, K Mazik, K Robert, Laëtitia Buisson, LT Dafoe, M Gerino, M Solan, M-Y Sun, MA Palmer, N Friberg, O Dangles, O Maire, O Maire, P Berg, P Marmonier, Pascal Laffaille, R Development Core Team, RC Aller, RP Creed, S Lagauzère, S Mulsow, S Navel, S Schmidt   +37 more
core   +4 more sources