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Learn more about Bing search results hereHard mass of sedimentary rock cement
Organizing and summarizing search results for youA concretion is a hard mass of sedimentary rock cement that forms when a considerable amount of cementing material precipitates locally around a nucleus. The term comes from the Latin concrescere, meaning to grow together or harden. Concretions are usually spherical or disk-shaped, and are embedded in a host rock of a different composition. They are often formed early in the burial history of sediment, before the rest of the sediment has hardened into solid rock.3 Sources
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See all on WikipediaConcretion - Wikipedia
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. Concretions are often ovoid or spherical in shape, although irregular shapes also occur. The word concretion is borrowed from Latin concretio … See more
Detailed studies have demonstrated that concretions form after sediments are buried but before the sediment is fully lithified during diagenesis. They typically form when a mineral … See more
Concretions are commonly composed of a mineral present as a minor component of the host rock. For example, concretions in sandstones or shales are commonly formed of a carbonate mineral such as calcite; those in limestones are commonly an amorphous or … See more
Concretions vary considerably in their compositions, shapes, sizes and modes of origin.
Septarian concretions
Septarian … See more• Dietrich, R.V., 2002, Carbonate Concretions – A Bibliography, The Wayback Machine. and PDF file of Carbonate Concretions – A Bibliography Archived 2014-12-17 at the Wayback Machine, CMU Online Digital Object Repository, See more
Concretions vary in shape, hardness and size, ranging from objects that require a magnifying lens to be clearly visible to huge bodies three meters in diameter and weighing several … See more
Concretions are found in a variety of rocks, but are particularly common in shales, siltstones, and sandstones. They often outwardly resemble fossils or rocks that look as if they do not … See more
• Bowling Ball Beach – Beach in Mendocino County, California, US
• Caliche, also known as calcrete – Calcium carbonate based concretion of sediment in arid and semi-arid soils
• Champ Island – Island in Franz Josef Land, Russia See moreWikipedia text under CC-BY-SA license Concretions - Paleontological Research Institution
Apr 3, 2020 · Concretions are commonly misunderstood geologic structures. Often mistaken for fossil eggs, turtle shells, or bones, they are actually not …
Concretions: What Are These Bizarre Rock Formations? (And …
See more on rockseeker.comA concretion is a hard mass found within layers of sedimentary stone. They’re generally round in shape, and each type tends towards one form or another. You shouldn’t confuse a concretion with a nodule. Nodules occur as minerals different from the surrounding layers, while concretions are largely composed of the same …Concretions Picture Gallery - ThoughtCo
Aug 24, 2017 · A concretion consists of the same material as the rock around it, plus the cementing mineral, whereas a nodule (like flint nodules in limestone) is composed of different …
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What Is A Concretion? - WorldAtlas
Jan 16, 2020 · Concretions are geological features found in sedimentary rock and soil. A concretion is a hard mass that forms when rock minerals precipitate in cracks or cavities.
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Concretions and Nodules | Department of Mineral
A concretion is a clearly bound body of rock within generally softer enclosing sediments of the same composition. The term comes from the Middle English concret, itself derived from the Latin concrescere, meaning to grow together or …
Concretions - DesertUSA
A concretion is a compact mass of mineral matter, usually spherical or disk-shaped, embedded in a host rock of a different composition. This hard, round mass of sedimentary rock cement is carried into place by ground water.
Concretions: Inexplicable spherical rocks - Quarry
Jan 10, 2023 · The concretions are a hard, compact mass of matter formed by the precipitation of mineral cement within the spaces commonly found in sedimentary rock. Concretions are found across areas of Kodiak Island on Alaska’s …
Scientists Have Cracked The Mystery Of How Fossil …
May 3, 2018 · Concretions, despite being common in sedimentary rocks, are still a sort of geological mystery. Do dead animals or plants play a role in the formation of concretions, or do concretions...
Concretions, Thunder Eggs and Geodes - The …
Concretions can have regular shapes like blocks, boxes, pipes, flat discs, canon balls, or even resemble parts of a human body such as a foot or rib. It is sometimes hard to believe that they formed by natural processes. Ironstone …
Concretions - Natural Atlas
A concretion is a hard, compact mass of matter formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. Concretions are often ovoid or spherical in shape, although …
Concretions in mine roofs - University of Kentucky
Jan 5, 2023 · Definition and formation: Concretions are isolated, often oval-shaped rock masses. Concretions are commonly composed of limestone (calcium carbonate), but silica-rich …
What Does Concretion Mean In Geology | Science-Atlas.com
Aug 22, 2021 · A concretion is a volume of sedimentary rock in which a mineral cement fills the porosity (i. e. the spaces between the sediment grains). Concretions are often ovoid or …
Concretion | GeoKansas
Concretions are masses of mineral matter embedded within rock layers, including limestone, sandstone, and shale. They often take shape when minerals precipitating (settling) out of …
Concretion - an overview | ScienceDirect Topics
Concretions are masses of rock that form when minerals grow around organic debris, commonly found in black shales and occasionally in gray shales. They can occur as individual …
Concretion - Wikiwand
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. [1] Concretions are often …
Concretion - Encyclopedia.com
Jun 8, 2018 · concretion, mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock [1]. It is formed by the accumulation of mineral …
concretion - Infoplease
concretion, mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore …
Concretion - chemeurope.com
A concretion is a volume of sedimentary rock in which a mineral cement fills the porosity (i.e. the spaces between the sediment grains). Concretions are often ovoid or spherical in shape, …
Concretion (Concretion) - Rock Identifier
Concretion refers to a geological formation characterized by a hard compact mass found in sediments or sedimentary rocks. It occurs through the precipitation of mineral cement, often …
Weathering, Erosion, and Sedimentary Rocks – Introduction to …
Rock types found as a mixture between the main classifications may be named using the less-common component as a descriptor. For example, a rock containing some silt but mostly …
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