What is Conglomerate Rock?

What is the composition of conglomerate rock?

1. Sand, silt, and clay

2. Gravel sized poorly sorted sediments

3. Limestone

Answer:

The rock that is composed of mostly rounded gravel sized poorly sorted sediments is called a conglomerate rock.

Conglomerate rocks are composed of large, rounded rock fragments, known as clasts, that are greater than two millimeters in diameter. These clasts are surrounded by a matrix of smaller sediments, such as sand, silt, and clay. The clasts in a conglomerate rock are poorly sorted, meaning that they vary greatly in size and shape.

This is in contrast to other sedimentary rocks, such as sandstone, which are composed of more uniformly sized sediments. Conglomerate rocks are typically formed in environments with high energy, such as riverbeds and beaches, where the sediments are subjected to strong currents and waves that round and sort the sediments.