Sentence examples for creek sediment from inspiring English sources
In the process of demolishing contaminated buildings and dredging river and creek sediment, the E.P.A. has saved mill tools, large spools and machinery, and the employment records of thousands of immigrant workers, most of them Eastern Europeans who were often recruited fresh from Ellis Island.
The decrease in dissolved sulfide followed by the production of soluble organic-Fe(III) in the surficial sediment layers (≤ 3 cm) of the creek sediment at ebb tide (Figure 4a and 4b) and at rising tide (Figure 7) may be related to the input of dissolved oxygen when the hydrostatic pressure changes in the sediment.
If the surface area of the unvegetated creek sediment is smaller than that of the main tidal river, the hydrostatic pressure should be higher in the unvegetated creek bank sediment, and a vertical displacement toward the sediment-water interface may be promoted.
Caesar Creek sediment (CCS) was oxidized to remove amorphous organic carbon (AOC) followed by soot carbon (SC), spiked and aged with 2-chlorobiphenyl (2-ClBP), mixed with various aquatic solutions, and treated on reactive activated carbon (RAC) impregnated with palladized iron.
The only sample yielding EcO157 was a creek sediment sample collected adjacent to Farm A in July 2004.
They show that dissolved sulfide can occasionally reach the SWI at rising tide, even in creek sediments (Figure 5b).
In this scenario, reduced chemical species are likely to build up twice as much in mud flat sediments compared to creek sediments during each tidal cycle.
These processes still do not explain the differences in redox state at the MF and CB sites, and in particular, how iron oxides are generated in creek sediments.
Microbial iron reduction rates between 70 and 116 mmole Fe m-2 d-1 are reported for creek sediments at SERF [15, 62].
Reactive phosphate δ18O values extracted from sediments and soils in the watershed range from 10.6‰ in a drainage ditch to 22.3‰ in creek sediments near agriculture fields.
However, the sediments of the Project Area lacked the woody detrital cover, high peat content, and predominance of silt and clay characteristic of the natural creek sediments.
