"silt sand" is a correct and usable phrase in written English.
The phrase refers to a type of sand with a high silt content. Example sentence: "Due to its high silt content, the silt sand found in this beach is particularly fine and soft."
"The silt, sand, mud, the crap and the smell.
Heavy minerals have a size distribution similar to that of quartz; they occur in silt, sand, and even larger sizes.
The first set consisted of clay, silt, sand and organic carbon (OC) contents.
Areas of alluvial soils (which develop from clay, silt, sand, and gravel deposited by streams) are especially fertile but are limited to the lower parts of river valleys.
The strong current and the glacial silt, sand and gravel suspended in it were what gave the river its frictioned, slithering charge".
Most of the levees, built as mounds of silt, sand and other materials found close to the riverbank, are in danger of collapsing.
Cation exchange capacity (CEC) values substantiate the formation of the new pozzolanic reaction minerals which result in more stable silt-sand like structures.
Moreover, design engineers are not aware of the behavior of nonplastic silt-sand mixtures.
The pebble is filled with silt-sand and cemented by leached carbonate calcium, so it has a very low permeability.
As one example, silt-sand rhythmites associated with the Missoula Floods are present along Willow Creek, a valley tributary to the Columbia River.
Dominant substratum was visually estimated and characterised as silt-sand (< 2 mm), gravel (10 – 64 mm), cobble (64 256 mm), boulders (> 256 mm) and bed rock (solid rock surfaces) [ 60, 61].
