What is biolithite?

biolithite A carbonate rock formed of organisms that grew and remained in place, comprising a rigid framework of organisms, together with associated debris. A reef represents a typical biolithite. See FOLK LIMESTONE CLASSIFICATION.

What is Intrasparite?

Intrasparite: a limestone rock containing at least 25% of intraclasts and in which the sparry-calcite cement is more abundaformnt than the carbonate mud matrix (micrite) (Folk, 1959) Isopachous cement: refers to a cement precipitated with uniform thickness around the grains.

What is the difference between Sparite and Micrite cement?

If one compares the two classifications, a Rock rich in carbonate mud is termed a micrite by Folk and a mudstone or wackestone by Dunham. Moreover, a Rock containing little matrix is termed a sparite by Folk and a grainstone or packstone by Dunham.

Is micrite a cement?

MICRITIC INTERNAL SEDIMENT/CEMENT.

What is micrite used for?

Micrite envelopes document a period of alteration concurrent with deposition. The micritized surfaces of grains commonly survive dissolution and provide a surface for later precipitation of cements.

What is Intraclasts in geology?

Intraclast – A fragment of penecontemporaneous, commonly weakly consolidated, carbonate sediment that has been eroded and redeposited, generally nearby, within the same depositional sequence in which it formed (Folk, 1959 and 1962).

What is Calcilutite in geology?

Calcilutite (also known as cementstone) is a type of limestone that is composed of predominantly, more than 50 percent, of either clay-size or both silt-size and clay-size detrital (transported) carbonate grains.

What is sparite geology?

Sparite is the coarse crystalline calcite cement which fills pore spaces in many limestones after deposition, formed by the precipitation of calcite from carbonate-rich solutions passing through the pore spaces in the sediment. From: sparite in A Dictionary of Earth Sciences »

Is micrite organic or inorganic?

Micrite consists of 1 to 4 μm-diameter crystals and forms as an inorganic precipitate or through breakdown of coarser carbonate grains.

What is a micrite in geology?

micrite, sedimentary rock formed of calcareous particles ranging in diameter from 0.06 to 2 mm (0.002 to 0.08 inch) that have been deposited mechanically rather than from solution.

How are Ooids formed?

An ooid is a small spherical grain that forms when a particle of sand or other nucleus is coated with concentric layers of calcite or other minerals. Ooids most often form in shallow, wave-agitated marine water.