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Clastic rocks have a 'clastic texture', which means they consist of clasts. The 3D orientation of these clasts is called the fabric of the rock. Between the clasts the rock can be composed of a matrix or a cement (the latter can consist of crystals of one or more precipitated minerals). The size and form of clasts can be used to determine the velocity and direction of current in the sedimentary environment where the rock was formed; fine, calcareous mud only settles in quiet water, while gravel and larger clasts are only deposited by rapidly moving water.[10][11] The grain size of a rock is usually expressed with the Wentworth scale, though alternative scales are used sometimes. The grain size can be expressed as a diameter or a volume, and is always an average value - a rock is composed of clasts with different sizes. The statistical distribution of grain sizes is different for different rock types and is described in a property called the sorting of the rock. When all clasts are more or less of the same size, the rock is called 'well-sorted', when there is a large spread in grain size, the rock is called 'poorly sorted'

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Is this true or false sedimentary rocks can be turned into metamorphic rocks when heat and pressure is applied?

True. Sedimentary rocks can undergo metamorphism when they are subjected to high temperatures and pressures deep within the Earth's crust. This process transforms the mineral composition and texture of the rock, creating metamorphic rocks.


Which is true about how all detrital rocks form?

Detrital rocks form from the accumulation and cementation of sediment grains derived from the weathering and erosion of pre-existing rocks. The size, shape, and composition of the sediment grains help to identify the environment in which the detrital rock formed. Detrital rocks include sandstone, shale, and conglomerate.


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.


Most sedimentary rocks are readily dated by radiometric methods True False?

False. Most sedimentary rocks cannot be directly dated by radiometric methods because they are composed of sediments that were already eroded and transported from existing rocks. Instead, geologists use relative dating techniques to determine the sequence of events in which sedimentary rocks were formed.


True or false sedimentary rocks form from particles ddeposited by water and wind?

True. Sedimentary rocks are formed from the accumulation and compression of particles deposited by water, wind, or ice over time. These particles can include clay, sand, and organic matter.

Related Questions

Is this true or false sedimentary rocks can be turned into metamorphic rocks when heat and pressure is applied?

True. Sedimentary rocks can undergo metamorphism when they are subjected to high temperatures and pressures deep within the Earth's crust. This process transforms the mineral composition and texture of the rock, creating metamorphic rocks.


Which is true about how all detrital rocks form?

Detrital rocks form from the accumulation and cementation of sediment grains derived from the weathering and erosion of pre-existing rocks. The size, shape, and composition of the sediment grains help to identify the environment in which the detrital rock formed. Detrital rocks include sandstone, shale, and conglomerate.


Is it true or false that the texture of a sedimentary rock that does not have minerals arranged in bands is described as nonfoliated?

False. The terms folidated and nonfoliated apply to metamorphic rocks.


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.


Is it true that sedimentary rocks are formed by particles deposited by wind and water?

no its not


Are two forms of sedimentary rocks are chemical and extrusive true or false?

answer:true


Does the composition of a sedimentary rock depend upon the composition of the rocks and the living things its sediments came from?

It is true that the composition of a sedimentary rock depends upon the composition of the rocks and living things its sediments come from. Sedimentary rocks form through lithification.


Is it true that sedimentary rocks is formed from many layers of sediment?

Yes, it is true. Sediments get blown together by wind, and then layer on top of each other. Over time, there's lots of pressure, and the lower sediments become sedimentary rocks.


A detrital rock is named according to the color of the sediments true or false?

True


True or false the tree main types are igneos sedimentary and magma?

That is false. The 3 main types of rocks are igneous, sedimentary, and metamorphic


Rough texture rocks have grains and fine textured rocks have grains?

Yes m that it true, other than glasses all rocks have grains.


Is A detrital rock is named according to the color of the sediments.?

True