Siltstone is a fine to medium-grained sedimentary rock. ... Siltstones are formed by particles settling through water and accumulating on the ocean floor, river beds or lagoon and lake bottoms. As the silt is buried and compacted by overlying sediment, the water is squeezed out and it turns into siltstone.

How is siltstone created?

Siltstone is a sedimentary rock composed mainly of silt-sized particles. It forms where water, wind, or ice deposit silt, and the silt is then compacted and cemented into a rock. ... It represents a level of current, wave, or wind energy between where sand and mud accumulate.

Is siltstone chemical sedimentary rock?

Examples include: breccia, conglomerate, sandstone, siltstone, and shale. Chemical sedimentary rocks form when dissolved materials preciptate from solution. Examples include: chert, some dolomites, flint, iron ore, limestones, and rock salt. ... Examples include: chalk, coal, diatomite, some dolomites, and some limestones.