Match the Sediment Size to its Rock Type

Which sediment size matches with its respective rock type?

a) Clay - Sedimentary rock

b) Sand - Metamorphic rock

c) Gravel - Igneous rock

d) Silt - Sedimentary rock

Answer:

The correct match is: a) Clay - Sedimentary rock.

Based on the common traits and processes connected to each sediment size and rock type, the match between sediment size and rock type is made sedimentary rock made of clay.

Sedimentary rock made of clay

The size of clay particles ranges from 0.002 to 0.005 millimeters, making them exceedingly small.

Shale and mudstone are examples of sedimentary rocks that are frequently created over time by the collection and compaction of clay-sized particles. The fine-grained texture of these rocks is characteristic of clay-sized material.

Silt particles range in size from 0.005 to 0.0625 millimeters, making them slightly larger than clay particles. Silt-sized sediments can build up and eventually form sedimentary rocks like siltstone, much like clay can. A fine-grained sedimentary rock is siltstone.