Calcareous concretion definition. They can range in size from 3 cm to 8 m in diameter.



Calcareous concretion definition. The concretion margins are formed by two thin silt turbidites, which are 40 cm apart in the centre of the concretion and < 8 cm at the end where the concretion tapers out into the host sediment, indicating > 80% of post-cementation compaction. See examples of TOPHUS used in a sentence. [1] Apr 3, 2020 · Calcareous concretions are spherical to oval-shaped calcium carbonate concretions that are flattened parallel to the bedding planes. A concretion is a hard and compact mass formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. , especially in gout; a gouty deposit. Pisolith definition: a pea-size calcareous concretion, larger than an oolith, aggregates of which constitute a pisolite. Some calcareous algae can assume growth forms that resemble miniature versions of macro plant remains. Varieties such as conch pearls, tridacna pearls, and others are frequently used in jewelry. Jul 3, 2025 · The meaning of OTOLITH is a calcareous concretion in the inner ear of a vertebrate or in the otocyst of an invertebrate. Learn what's hidden within these captivating geological phenomena and the forces that shape them. They can range in size from 3 cm to 8 m in diameter. Despite lacking nacre, calcareous concretions are still gorgeous with unique patterns you won’t see in pearls. They occur in sedimentary rock layers and can vary in size from small pebbles to large boulders. Although not true pearls, they can still make beautiful gems. Browse the use examples 'calcareous concretion' in the great English corpus. Stratigraphic top towards the right Tophus definition: a calcareous concretion formed in the soft tissue about a joint, in the pinna of the ear, etc. Jun 20, 2021 · During concretion formation, the layering of the varved sediments is well preserved without disturbance, hence the microstructure and quantitative mineral composition of different sublayers within a concretion differ accordingly. Sep 1, 2024 · Several species of marine mollusks produce stony growths called calcareous concretions or non-nacreous pearls. Learn the definition of 'calcareous concretion'. . Calcite is one of the major cementing agents for sedimentary rocks, and the formation of calcareous concretionsindicatesactivelyflowing calcite-rich water within the pores of the sediment. A famous example of this is the so-called Landscape Marble from the Upper Triassic of the Bristol District of England. Check out the pronunciation, synonyms and grammar. What Are Calcareous Concretions? Calcareous concretions are hard, compact masses formed by the accumulation of mineral matter. Jan 28, 2024 · Calcareous concretions are rare gemstones similar to pearls but with a porcelain-like appearance instead of the characteristic nacre that gives pearls their luster. Here, intermixed arborescent and laminated growths of calcareous algae resemble scenes of forested hills (Figure 1). Discover the fascinating world of concretions and their intriguing formation process. See examples of PISOLITH used in a sentence. zng coy9g o9sb x1yu r4k yx5do qqvav64 o7pq78 odmx tod2ko