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the answer is shale.

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Chaz Stroman

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Q: What is sedimentary rock composed of compacted clay?
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Is Clay Sediment from rock?

Clay is actually a description of sediment of a specific particle size. As such clay is not necessarily a rock. However when compacted and cemented clay forms claystone which is a sedimentary rock.


What sedimentary rock is formed form layers of clay compacted very tightly together?

This is Shale, a Sedimentary rock.


Sedimentary rock made of quartz?

Sedimentary rock is composed of a variety of sediments, ranging from clay sized particles to boulders, which have been compacted and cemented together. Chemical sedimentary rocks can be principally composed of precipitated calcite, gypsum or halite. Organic sedimentary rock can consist of shells or partially decomposed plants.


What sedimentary rock is formed from thin layer of clay compacted very tightly together?

This is Shale, a Sedimentary rock.


Which type of sedimentary rock is composed mostly of clay-sized particle?

Claystone is a sedimentary rock composed primarily of clay particles.


What is argillaceous?

Argillaceous rock, is sedimentary rock composed of clay minerals


What is the name for sedimentary rock composed of consolidated clay?

ARGILLITE


What is shales made up of?

Yes. It is made out if clay. The difference between just clay and shale is that the shale consists of compacted clay. Because of compaction, the clay particles (which are flaky) tend to align themselves resulting in varying degrees of fissility. If shale is even more compacted, it will turn into a slate, which is no longer a sedimentary but a metamorphic rock.


Is chalk and shale the same thing?

No. Chalk is a variant of limestone, composed primarily of calcite. It is a carbonate sedimentary rock. Shale is a laminated sedimentary rock composed of silt and clay sized particles of mostly silicate mainerals. It is a clastic sedimentary rock.


What is a rock composed of large rounded gravels compacted together with sand silt and clay?

It's called conglomerate.


What is a rock that forms when the particles are compacted and cemented together?

sedimentary rock.


A fine grained sedimentary rock that forms slate when placed under extreme heat and pressure?

The rock you are referring to is shale. Shale is a fine-grained sedimentary rock composed of compacted clay and silt particles. When subjected to intense heat and pressure, shale can undergo metamorphism and transform into slate. This process of metamorphism causes the clay minerals in shale to recrystallize, resulting in the characteristic foliated texture of slate.