Here's a breakdown:
* Pebbles: These are the rounded fragments of rock, larger than sand grains but smaller than boulders.
* Cemented: The pebbles are held together by a natural "glue" called cement, which is often made of minerals like calcite, silica, or iron oxide.
* Other sediments: Along with the pebbles, conglomerates can also contain sand, silt, clay, and even fragments of shells or fossils.
Conglomerates are a type of clastic sedimentary rock, meaning they are formed from fragments of other rocks that have been weathered, transported, and then deposited together.
