17 Facts About Sedimentary rock

Study of the sequence of sedimentary rock strata is the main source for an understanding of the Earth's history, including palaeogeography, paleoclimatology and the history of life.

Unroofing of buried sedimentary rock is accompanied by telogenesis, the third and final stage of diagenesis.

Color of a sedimentary rock is often mostly determined by iron, an element with two major oxides: iron oxide and iron oxide.

However, a red colour does not necessarily mean the Sedimentary rock formed in a continental environment or arid climate.

The texture is a small-scale property of a Sedimentary rock, but determines many of its large-scale properties, such as the density, porosity or permeability.

The grain size of a Sedimentary rock is usually expressed with the Wentworth scale, though alternative scales are sometimes used.

For example, coquina, a Sedimentary rock composed of clasts of broken shells, can only form in energetic water.

In contrast to igneous and metamorphic rocks, a sedimentary rock usually contains very few different major minerals.

The mineralogy of a clastic Sedimentary rock is determined by the material supplied by the source area, the manner of its transport to the place of deposition and the stability of that particular mineral.

Resistance of Sedimentary rock-forming minerals to weathering is expressed by the Goldich dissolution series.

Any sedimentary rock composed of millimeter or finer scale layers can be named with the general term laminite.

The resulting structures in the rock are syn-sedimentary folds and faults, which can be difficult to distinguish from folds and faults formed by tectonic forces acting on lithified rocks.

The Sedimentary rock sequence formed by a turbidity current is called a turbidite.

Kind of rock formed in a particular depositional environment is called its sedimentary facies.

In some sedimentary environments, most of the total column of sedimentary rock was formed by catastrophic processes, even though the environment is usually a quiet place.

New Sedimentary rock layers are above older Sedimentary rock layers is stated in the principle of superposition.

All Sedimentary rock exposed at Earth's surface is subjected to physical or chemical weathering and broken down into finer grained sediment.