Formation Of Sedimentary Rock Essay Example

2001 & Wiley. com, 2008). When the sediments transformed to rock, either the remnants or the profile of the flora and fauna were preserved.

There is a limestone which totally consists of fossil remains. Three Categories and Distinguishing Features of each type of Sedimentary Rocks Clastic rock is produced from solid grains which are weather – beaten from earlier rocks. Chemical and biochemical rocks are deposits which are advance from water either by means of chemical or biochemical or biological methods (Tucker, 2001 & Wiley. com, 2008).

The fundamental structural compositions of clastic sedimentary rocks are deposits, rocks, and mineral remains formed the moment rocks break up on the earth’s surface (Tucker, 2001 & Wiley. om, 2008).They form in three stages that involve the production, transportation, and deposition of residues. Chemical sedimentary rocks are produced from a solution as a product of varying physical conditions.

Customarily, the solution is sea water. These mineral deposits are dissolved from rocks on the continents and carried to the seas by solution in rivers. Mineral deposits dissolved in salt water are precipitated the moment water evaporates to produce rocks such as gypsum and halite (Tucker, 2001 & Wiley. com, 2008). Evaporation naturally happens in controlled basis in dry climates.Thick salt sediments signify that there must have been a steady source of additional salt water to guarantee the stable deposition of salts.

These rock kinds are known as evaporates. Biochemical sedimentary rocks require the behaviors of living creatures that cause mineral deposits to be formed as a product of a solution or are made up of the remnants of lifeless organisms. The bones of some microorganisms gather on the sea bed to produce chalk.

Breakdown may produce sands or mud to create medium to fine grained limestone. These rocks are occasionally referred to as organic sedimentary rocks (Tucker, 2001 & Wiley. com, 2008).

Kinds of Sedimentary Rocks Shale is the most usual kind of sedimentary rocks. It is composed of compacted mud, which is a blend of clay and silt. Silt is made up of fine grains of mineral substance. Limestone consists mainly of calcium carbonate. Cement consists of limestone with a small amount of shale combined. Sandstone, is made up of sand and conglomerate, consists of sand or gravel grains (Tucker, 2001 & Wiley.

com, 2008). The sand or gravel grains found in sandstone as well as in conglomerate are glued together by mineral cement. Coal, which is totally made up of compacted flora residues, is a main source of fuel.