A sedimentary rock
over a very long time layers of these sediments hardened into a sedimentary rock called limestone
The action of water and gravity cause them to form in layers.
Igneous rock
Sediments settle in layers at the bottom of bodies of water, such as lakes, rivers, and oceans. Over time, as more sediments accumulate, they become compacted and cemented together to form sedimentary rock.
metamorphic rocks
Sedimentation of transported weathered and eroded material is continuous, cyclical, or event based. New sediments are deposited on top of existing sediments, forming layers that may be visible in a sedimentary rock body.
basalt
These are sediment particles, such as sand, silt, and clay, that settle down due to gravity. Over time, these sediments accumulate to form layers called sedimentary deposits.
The process of pressing sediments together to form solid rock is called compaction. It occurs when layers of sediment accumulate on top of each other, with the weight of the overlying layers causing the sediments to be pressed tightly together.
When sediments deposit in lakes or oceans, they typically settle in layers on the bottom of the body of water. Over time, these layers can build up and form sedimentary rock.
In disturbed sediments without layers, the relative age of the sediments would be unknown.
Layers of sediments compressed the layers of vegetation to form the coal deposits.