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Compaction over years and fossilization. That's what I learned in ap Earth Science.

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What kind of sedimentary rocks are formed when sediments are deposited in layers at the bottoms of lakes and oceans?

sedimentary rock formed by weathering and erosion


What are rocks called when they are formed by sand rocks and shells?

Rocks formed from sand, rocks, and shells are known as sedimentary rocks. Sandstones, mudstones, and limestone are common examples of sedimentary rocks that can be formed from these materials.


What sedimentary rocks are formed from the remains of plants and animals?

Sedimentary rocks formed from the remains of plants and animals are called organic sedimentary rocks. Examples include coal, formed from the remains of plants, and limestone, formed from the shells of marine organisms.


Can sedimentary rocks form under the ocean or on land only?

Sedimentary rocks formed under oceans, but the ocean may no longer be there. The Great Lakes region was once all under water and has much sedimentary rock.


Rocks formed from weathered debris from preexisisting rocks are called?

They are called clastic sedimentary rocks.


How was asandstome formed?

Sandstone rocks are formed from sedimentary rocks. It is when sedimentary rocks are broke down into small pieces.


What rocks are formed from broken rocks?

Rocks formed from broken rocks are known as sedimentary rocks. These rocks are formed from the accumulation and lithification of sediments, which can include fragments of other rocks, minerals, and organic material. Common examples of sedimentary rocks formed from broken rocks include sandstone, conglomerate, and shale.


Can a moon rock become sedimentary rocks?

no because sedimentary rocks are made at the bottom of oceans


What kind of sedimentary rocks are formed when sediments are deposited in layers at the bottoms of lakes or oceans?

The rock formed would usually be classified as clastic sedimentary rock, like shale.


Is sedimentary rocks formed the same way normal rocks are?

No, because a sedimentary rock is formed from pieces of other rocks.


Are sedimentary rocks formed from fragments of other rocks chemical sedimentary rocks?

No, sedimentary rocks formed from fragments of other rocks are called clastic sedimentary rocks. Chemical sedimentary rocks form from minerals that are dissolved in water and precipitate out to form rocks like limestone or halite.


Rocks formed from sediments deposits?

Sedimentary rocks are formed from sediment deposits (gravel, sand, silt, clay) over long periods of time either on land or in water (lakes, oceans). As more and more sedimentary layers are deposited, the newer layers exert pressure on the older layers, which compacts the loose particles and cements them together - forming sedimentary rocks. Sedimentary rocks can also be formed through the precipitation of dissolved minerals to form limestone or dolomite.