Gregory, B.R.B.; Reinhardt, E.G., and Gifford, J.A., 2017. The influence of morphology on sinkhole sedimentation at Little Salt Spring, Florida.Sedimentary processes are important for understanding sinkhole …
Weather patterns may also strongly influence their performance due to variability in the intensity and duration of rainfall events, and the potential hydraulic overloading that is caused. ... We performed a limited-scope static experiment on salt-enhanced sedimentation of soil material in aqueous solution, in order to mimic the …
The objective of this study was to evaluate the effects of soluble salt concentration (i.e., salinity) and cation valence on sedimentation behavior of two common clays with differing plasticity, kaolin and bentonite, and saline mine tailings from a soda ash mine in Wyoming, USA.Salinity was controlled in the natural clays via adding salts with …
Behavior of sediment gravity flows can be influenced by seafloor topography associated with salt structures; this can modify the depositional architecture of deep …
To gain insight into the process of sedimentation occurring when clay-laden estuaries and deltas enter marine water, we perform laboratory experiments to measure the settling rate of initially unflocculated kaolin clay in fresh and salt water. In fresh water, sedimentation is a slow process with the clay particle concentration gradually …
Davies et al., 2012;Benjamin et al., 2015). Canyons can promote salt migration within the subsurface and impact the geometry of salt bodies (Fiduk, 1995), can increase the salinity of shelf waters ...
Salt-marsh plants play important roles in the hydrodynamics and sediment transport and deposition processes in coastal regions. The Delft3D model was applied to quantify the influence of salt-marsh plants …
1. Introduction [2] Early studies of salt marsh development postulated that sedimentation rates decreased monotonically with increasing marsh elevation [e.g., Krone, 1987; French, 1993; Allen, 1994].This stemmed from the observation that marshes lower in the tidal frame were inundated for longer periods of time resulting in greater particle …
Salt marshes can protect coastlines against flooding by attenuating wave energy and enhancing shoreline stabilization. However, salt-marsh functioning is threatened by human influences and sea level rise. Although it is known that protection services are mediated by vegetation, little is known about the role of vegetation structure …
Further studies have shown that the contribution of storm sedimentation to the salt marsh sediment budget allows salt marshes to keep pace with sea-level rise and is therefore critical for ... variability of the salt marsh edge under influence of waves and sediment availability. Water Resour. Res., 58 (1) (2021), Article e2020WR028962, …
Thus, Spartina biomass influences on the carbon content of marsh sediments (Tanner et al., 2010), ... To examine the mechanisms contributing to the salt marsh sedimentation, the data and their ...
Coastal wetlands play an important role in the global carbon cycle. Large quantities of sediment deposited in the Changjiang (Yangtze) estuary by the Changjiang River promote the propagation of coastal wetlands, the expansion of saltmarsh vegetation, and carbon sequestration. In this study, using the Chongming Dongtan Wetland in the …
Debrites with different volumes, depositional periods and setting are observed in the Nile deep-sea fan system. Here we present debrites from four late Quaternary environments:(i) within the Rosetta submarine channel at 1700 m;(ii) within small basins created by salt tectonics in the Eastern Province at 1300 m;(iii) on the open slope outside of channels at …
The present study was conducted to test the influence of salt sensitivity in terms of the BP reducing effect after RDN procedure. Salt sensitivity was estimated using the in vitro Erythrocyte Salt ...
Our results confirm the major contribution of salt-marsh vegetation to sedimentation, which is important for the vertical growth of salt marshes to keep up with …
An unditched salt marsh-creek drainage basin (Holland Glade Marsh, Lewes, Delaware) has a sedimentation rate of 0·5 cm year −1. During normal, storm-free conditions, the creek carries negligible amounts of sand and coarse silt. Of the material in the waters flooding the marsh surface, over 80% disappears from the floodwaters within …
SEDIMENTATION . Sedimentation, or clarification, is the process of letting suspended material settle by gravity. ... such as an iron salt or aluminum sulfate. ... A few other factors can also influence sedimentation basin efficiency. Intermittent operation of the basin can cause settling problems. Also, design problems such as excessive surface ...
To our understanding, this study reported novel results in that it quantified the expected effects of varied levels of easily available salt-type coagulants on the sedimentation of non-ideal soil material; referring to …
For example, Guerguer et al. [43] carried out a 3-year outdoor exposure experiment on the durability of solar mirrors in the marine environment of Morocco, and the results showed that the influence of salt sedimentation was extremely important in the area short from the coast, and it was an important environmental indicator for evaluating …
The differences are primarily controlled by the relationship between the rates of sediment progradation ( Vprog) and salt flow ( Vs ). When Vprog > Vs, the salt is rapidly buried and both vertical and lateral salt flow are suppressed across the entire margin.
Kaolinite sedimentation rates, however, are two orders of magnitude slower than silica spheres having similar diameter and zeta potential. The difference in average sedimentation rates of the respective fronts can be explained by the influence of mass and shape on the fall velocity of individual particles.
The erythrocyte sedimentation rate (sedimentation rate, sed rate, or ESR for short) is a commonly performed hematology test that may indicate and monitor an increase in inflammatory activity within the …
Abstract. An unditched salt marsh-creek drainage basin (Holland Glade Marsh, Lewes, Delaware) has a sedimentation rate of 0·5 cm year −1. During normal, storm-free conditions, the creek carries negligible amounts of sand and coarse silt. Of the material in the waters flooding the marsh surface, over 80% disappears from the …
@article{Pichel2017TheIO, title={The influence of shortening and sedimentation on rejuvenation of salt diapirs: A new Discrete-Element Modelling approach}, author={Leonardo Muniz Pichel and Emma Finch and Mads Huuse and Jonathan Redfern}, journal={Journal of Structural Geology}, year={2017}, volume={104}, …
Note that the shape of the base of the salt layer is not important for producing a head gradient (although it may influence the geometry of flow once it begins). ... Sheets may stop growing at any stage in the lineage, depending on salt supply, sedimentation, and regional tectonics. Modified from Hudec and Jackson (2006).
The influence of shortening and sedimentation on rejuvenation of salt diapirs: A new Discrete-Element Modelling approach - ScienceDirect. Abstract. …
The calculations showed that de-icing salt (NaCl) had a negligible influence on the retention of PM. However, reducing the temperature from 20 °C to 5 °C was shown to decrease the total ...
These influences were compared to other factors, like overflow rate, particle density, and particle size distribution. To calculate the effect of temperature and de-icing salt on …
1 Introduction. Salt marshes are among the most productive ecosystems globally, providing a range of services including carbon sequestration, habitat for juvenile species, and protection from storm surge and flooding (Costanza et al., 2008).Coastal wetlands will be impacted by a number of processes associated with climate change, …
ABSTRACT Gregory, B.R.B.; Reinhardt, E.G., and Gifford, J.A., 2017. The influence of morphology on sinkhole sedimentation at Little Salt Spring, Florida. Sedimentary processes are important for understanding sinkhole records of climate and sea-level change. This study examines Little Salt Spring (LSS), an hourglass-shaped …
Influence of sedimentation rate on salt mobilization and geometry. In this set of experiments, the effects of variable sedimentation rates on the evolution of active …
SEDIMENTATION. A particle or droplet will settle in a fluid if its density is greater than that of the fluid in which it is suspended. The (laminar) settling velocity of particles whose concentration is very low, that is when the flow of fluid around a particle does not affect the flow around neighboring particles, can be calculated from Stokes ...
The influence of the pre-salt basin architecture on the primary distribution of LES and the along-strike effects on the evolution of the salt structure are still poorly understood (Ge et al., 2017 ...
The screening of repulsive surface charges by dissolved salt ions facilitates clay aggregation (or flocculation), which greatly enhances sedimentation rates by increasing effective particle mass (Coussot & …
The vegetation density can also affect the spatial distribution of sedimentation 31,32. Two deposition patterns emerge in the model, depending on whether resuspension is present.
Second, time variation in the rate (and sometimes the direction) of sea level change exerts a subtle influence over the nature of intertidal sedimentation, including the balance between autochthonous and allochthonous sedimentation. Many salt marshes are known to have been initiated and to have maintained their integrity through vertical and ...
The addition of salt verified the findings of Guo and Lewis [16]. At pH 4 the relative packing density was 0.58 for suspensions without salt, but decreased with the addition of salt. ... Five initial solids contents were investigated as a function of pH in order to determine the influence of φ ini on the sedimentation process.
Lake - Sedimentation, Erosion, Deposition: Lake sediments are comprised mainly of clastic material (sediment of clay, silt, and sand sizes), organic debris, chemical precipitates, or combinations of these. The relative abundance of each depends upon the nature of the local drainage basin, the climate, and the relative age of a lake. The sediments of a lake in a …
The results show that salt marsh vegetation has prominent effect of attenuating flow velocity and promoting sedimentation, and the ability differs depending on vegetation. Salt marsh vegetation can promote the development of tidal channels to shore, causing intensified erosion in the deep trough.
