Sandstone.
Mechanically
Geologists classify rocks by looking at their chemical and mineralogical composition then at the the size and shape of their component minerals then at any texture, pattern or grain that the rocks may display. They also classify them in relation to how they were formed.
Mechanically formed sedimentary rock is composed of particles that are eroded, transported, and deposited by wind, water, or ice. These particles are compacted and cemented together to form rocks such as sandstone, conglomerate, and shale. This type of sedimentary rock is characterized by its clastic composition, meaning it is made up of broken fragments of pre-existing rocks.
Some examples of clastic sedimentary rocks include sandstone, conglomerate, shale, and breccia. These rocks are formed from the accumulation of fragments of pre-existing rocks and minerals, which are then compacted and cemented together over time.
The main types of sedimentary rocks are clastic (formed from fragments of other rocks), chemical (formed from minerals precipitated from water), and organic (formed from the remains of once-living organisms). Examples include sandstone, limestone, and shale.
Clastic and nonclastic
Sedimentary rocks can be both chemically and mechanically weathered.
Erosion
Frost Wedging hiya kids!=)
Biologically, Chemically and Mechanically.
Clastic sedimentary rocks: Formed from the accumulation of mineral and rock fragments that are cemented together. Chemical sedimentary rocks: Formed from precipitation of minerals dissolved in water. Organic sedimentary rocks: Formed from the accumulation of organic material, such as plants or animals.
Magma. Water. Ice. Wind.