Meaning & use
sedimentary rock
Rock formed when layers of sediment, such as sand, mud, or organic material, are compressed and cemented together over time.
See it in a sentence
Sandstone and limestone are common types of sedimentary rock found in canyon walls.
Geologists study sedimentary rock layers to learn about ancient climates and environments.
A note on using this word
Sedimentary rock is one of three main rock types, alongside igneous and metamorphic rock, and often contains fossils.
Words with a similar meaning
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