The phrase "a sample of sediments" is correct and usable in written English.
It can be used in scientific or environmental contexts when referring to a small quantity of sediment collected for analysis or study.
Example: "The researchers collected a sample of sediments from the riverbed to analyze the levels of pollutants."
Alternatives: "a sediment sample" or "a collection of sediments".
The study of a sample of river sediment enables the determination of spatially averaged denudation rates that provide an exceptional perspective on erosion and weathering processes that have taken place within a landscape.
A sample of Hanford sediment had a reduction capacity even greater than the SRS aquifer material.
The mixture was then left to stand for 20 min before a sample of the sediment and the supernatant was collected for examination.
Every five meters, they pulled back the pipe and extracted a sample of dense gray sediment for Gnanaprakasam, who will use DNA sampling to identify which bacteria transform arsenic into a soluble form and release it into the groundwater.
These tests include: Urine Sediment: A sample of urine is centrifuged so that the debris settles to the bottom.
The objective of this study is to investigate the difference in HOC concentration of worms exposed to: a) a grab sample of contaminated sediment (10.4% total organic carbon); and b) an initially clean mixture of sand and organic matter (the so-called biouptake layer), placed on top of the RCM-capped sediment during consolidation coupled solute transport experiments.
Abundances of transcripts of pc and tfd were not different in fish exposed to either sample of sediment.
One sample of sediment taken along the Niida River, less than 30 km northwest of the crippled Fukushima No. 1 power plant, revealed the presence of cesium-134 and cesium-137 at levels of 29,800 becquerels per kilogram.
Allaby's team took four core samples of sediments from a section of the site littered with burnt hazelnut shells apparently left by the hunter-gatherers and subjected the samples to both radiocarbon dating and ancient DNA analysis.
During geological mapping of distinguished landforms, 169 samples of sediments were collected for laboratory testing.
