Sentence examples for grain sediment from inspiring English sources

Microbial endoliths participate in many geologically and ecologically significant processes, including the production of fine grain sediment, bioerosion of limestone and other calcareous substrates such as shells, and the skeletons of living or dead animals and plants [25], [26], [27], [28].

Because coarser grain sediments were mostly stored on the shelf, only fewer and finer grain sediments would be contributed to the core site by the currents.

The variation in macroinvertebrate assemblages was significantly explained by nitrate, pH, grain size (sediment composition), transparency, nymphaeid and submerged vegetation.

When Roberts used OSL to tease dates from individual mineral grains, he was able to distinguish old grains of bedrock from the grains of sediment that would reveal the true age of the shelter.

The surface texture of sediment grains is compatible with a fluvial-deltaic sedimentation environment and shows no signs of glacial entrainment.

The researchers could do this, they explain in tomorrow's issue of Nature, because dust grains differ substantially in chemistry and size from the grains of sediment deposited by river runoff.

So, they could identify any changes in precipitation by the proportion of dust grains to sediment grains more airborne dust means less precipitation, whereas more runoff grains mean more rain.

When tested in 1998, this water averaged a velvety 1.1 grains of sediment per gallon.

Lithification, complex process whereby freshly deposited loose grains of sediment are converted into rock.

Analysis by Curiosity revealed the presence of mudstone, a type of rock formed by fine grains of sediment settling out of a column of calm, still water.

Video footage from the experiments shows grains of sediment being flung millimetres into the air and landing nearby where they form ridges that grow higher and higher until they collapse and send material tumbling downhill.