What is the difference between Sparite and micrite cement?
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.
What type of rock is Grainstone?
Definition: Carbonate sedimentary rock with recognizable depositional fabric that is grain-supported, and constituent particles are of intrabasinal origin; contains little or no mud matrix.
What type of rock is a packstone?
carbonate rock
Under the Dunham classification (Dunham, 1962) system of limestones, a packstone is defined as a grain-supported carbonate rock that contains 1% or more mud-grade fraction.
Where do Packstones form?
The mudstones and packstones are formed in deeper-water environments. Both grainstone units were likely deposited in carbonate shoals with the nested grainstones forming in slightly more-turbulent depositional environments.
Where 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.
What is Micrite made of?
Micrite is a limestone constituent formed of calcareous particles ranging in diameter up to four μm formed by the recrystallization of lime mud.
How are Ooids formed?
What does dolomite look like?
Physical properties. Dolomite crystals are colourless, white, buff-coloured, pinkish, or bluish. Granular dolomite in rocks tends to be light to dark gray, tan, or white. Dolomite crystals range from transparent to translucent, but dolomite grains in rocks are typically translucent or nearly opaque.
What is boundstone in geology?
Definition: Sedimentary carbonate rock with preserved biogenic texture, whose original components were bound and encrusted together during deposition by the action of plants and animals during deposition, and remained substantially in the position of growth.