Peloids
Encyclopedia
Peloids are allochems that are composed of micrite
, irrespective of size, shape, or origin. The two primary types of peloids are pellets
and intraclasts
. Another type of peloid is pseudo-oolith.
Micrite
Micrite is a limestone constituent formed of calcareous particles ranging in diameter up to 4 μm formed by the recrystallization of lime mud.The term was coined in 1959 by Robert Folk for his carbonate rock classification system...
, irrespective of size, shape, or origin. The two primary types of peloids are pellets
Pellets (petrology)
Pellets are small spherical to ovoid or rod-shaped grains that are common component of many limestones. They are typically 0.03 to 0.3 mm long and composed of carbonate mud . Their most common size is 0.04 to 0.08 mm. Pellets typically lack any internal structure and are remarkably uniform in size...
and intraclasts
Intraclasts
Intraclasts are irregularly-shaped grains that form by syndepositional erosion of partially lithified sediment.Gravel grade material is generally composed of whole disarticulated or broken skeletal fragments together with sand grade material of whole, disaggregated and broken skeletal debris...
. Another type of peloid is pseudo-oolith.