Is Granite A Clastic Sedimentary Rock

6 1 clastic sedimentary rocks a clast is a fragment of rock or mineral ranging in size from less than a micron 1 too small to see to as big as an apartment block.

Is granite a clastic sedimentary rock.

Clastic sedimentary rocks are classified according to the grain size of the sediment and the kinds of rock fragments that make up the sediment table grain size is largely a function of the distance the particle was transported. It erodes into sediment and then gets compressed into a sedimentary rock. Organic sedimentary rocks like coal form from hard biological materials like plants shells and bones that are compressed into rock. Clastic sedimentary rocks like sandstone form from clasts or pieces of other rock.

Deep marine deposits are wedge shaped deposits consisting of coarse sediments and a large amount of feldspar typically at the foot of an eroding mountain range whereas deposits consist mostly of. Sedimentary rocks form as a result of weathering and deposition from previously formed rocks and are usually much softer than igneous or metamorphic rocks. Any type of mineral may be present but they in general represent the minerals that exist locally. Granite is an intrusive igneous rock formed from the cooling and solidifying of felsic magma at depth within the earth s crust.

Clastic sedimentary rocks are composed of other rock fragments that were cemented by silicate minerals. Conglomerate is a clastic sedimentary rock formed from pre existing. The formation of clastic and organic rocks begins with the weathering or breaking down. The spaces between the large angular fragments are filled with a matrix of smaller particles and a mineral cement that binds the rock together.

Clastic rocks are composed of fragments or clasts of pre existing minerals and rock. If a sedimentary rock consists of the shells of organisms is it clastic biochemical organic or chemical. Various types of clasts are shown in figure 5 12 and in exercise 5 3. The smaller ones tend to be composed of a single mineral crystal and the larger ones are typically composed of pieces of rock.

Clastic sedimentary rocks are subdivided according to the dominant particle size. A clast is a fragment of geological detritus chunks and smaller grains of rock broken off other rocks by physical weathering. Breccia is a term most often used for clastic sedimentary rocks that are composed of large angular fragments over two millimeters in diameter. Geologists use the term clastic with reference to sedimentary rocks as well as to particles in sediment transport whether in suspension or as bed load and in sediment deposits.

Clastic rocks are composed largely of quartz feldspar rock lithic fragments clay minerals and mica. No granite is an igneous rock. The granite melts into lava then cools becoming igneous. The sedimentary rock becomes metamorphic with heat and pressure.