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1. www.britannica.com › science › nodule-geologyNodule | Igneous, Sedimentary & Metamorphic | Britannica

   www.britannica.com › science › nodule-geology

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   nodule, rounded mineral concretion that is distinct from, and may be separated from, the formation in which it occurs. Nodules commonly are elongate with a knobby irregular surface; they usually are oriented parallel to the bedding.

   • Chemical Rock

     Other articles where chemical rock is discussed: sedimentary...

2. en.wikipedia.org › wiki › Nodule_(geology)Nodule (geology) - Wikipedia

   en.wikipedia.org › wiki › Nodule_(geology)

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   In geology and particularly in sedimentology, a nodule is a small, irregularly rounded knot, mass, or lump of a mineral or mineral aggregate that typically has a contrasting composition from the enclosing sediment or sedimentary rock.

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4. www.nrcs.usda.gov › sites › defaultA Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov › sites › default

   Examples include andic soil properties, episaturation, and identifiable secondary carbonates. A significant number of the terms included in this glossary are words that can be found in a common dictionary, but that have specific unique meanings in the context of soil survey and soil classification.

5. www.sciencing.com › tell-difference-between-geodeHow To Tell The Difference Between A Geode & A Nodule

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   Oct 15, 2018 · Geodes and nodules are two similar but slightly different kinds of rocks. A geode is hollow inside, whereas a nodule rock is solid. Both may contain various substances inside their centers, including crystals, metals or even petroleum. Geodes and nodules can be cut open to reveal their nature.

6. earthscience.stackexchange.com › questions › 9477Does the existence of limestone nodules in a clay soil ...

   earthscience.stackexchange.com › questions › 9477

   Jan 19, 2017 · A few long-destroyed buildings would explain the presence of limestone nodules in the soil while saying nothing about the bedrock. The point is there are many possible sources of limestone that are not the underlying bedrock.

7. wikimili.com › en › Nodule_(geology)Nodule (geology) - WikiMili, The Best Wikipedia Reader

   wikimili.com › en › Nodule_(geology)

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   Jul 28, 2023 · In sedimentology and geology, a nodule is a small, irregularly rounded knot, mass, or lump of a mineral or mineral aggregate that typically has a contrasting composition, such as a pyrite nodule in coal, a chert nodule in limestone, or a phosphorite nodule in marine shale, from the enclosing sediment or sedimentary rock.

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   What is a nodule in geology?

   • In geology and particularly in sedimentology, a nodule is a small, irregularly rounded knot, mass, or lump of a mineral or mineral aggregate that typically has a contrasting composition from the enclosing sediment or sedimentary rock. Examples include pyrite nodules in coal, a chert nodule in limestone, or a phosphorite nodule in marine shale.

   Nodule (geology) - Wikipedia

   en.wikipedia.org/wiki/Nodule_(geology)

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   What is a nodule in soil?

   • Nodule.—A kind of concentration within a soil horizon consisting of a chemical compound, such as calcium carbonate, iron oxide, or hydrated amorphous silica (opal), that is cemented to form a discreet body. It can be removed from the soil intact and has no evident orderly internal organization.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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   What is a nodular rock?

   • Nodular is used to describe a sediment or sedimentary rock composed of scattered to loosely packed nodules in matrix of like or unlike character. It is also used to describe mineral aggregates that occur in the form of nodules, e.g. colloform mineral aggregate with a bulbed surface.

   Nodule (geology) - Wikipedia

   en.wikipedia.org/wiki/Nodule_(geology)

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   Which type of nodules are recognized as diagnostic features in soil taxonomy?

   • Durinodes and iron/manganese nodules are specific kinds of nodules recognized as diagnostic features in Soil Taxonomy. Calcium carbonate nodules are considered a kind of identifiable secondary carbonate. Nodules are similar to concretions but concretions have evident internal organization.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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   What does a nodule do?

   • They write new content and verify and edit content received from contributors. nodule, rounded mineral concretion that is distinct from, and may be separated from, the formation in which it occurs. Nodules commonly are elongate with a knobby irregular surface; they usually are oriented parallel to the bedding.

   Nodule | Igneous, Sedimentary & Metamorphic | Britannica

   www.britannica.com/science/nodule-geology

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   What is a soil horizon containing nodules?

   • Soil horizons containing nodules (or concretions) are indicated with the suffix “c” (e.g., Bsc, Bgc). See concretion. Normal year.—A term used throughout the Keys to Soil Taxonomy as part of the criteria for determining the class of soil moisture regime from long-term (30 years or more) precipitation data.

   A Glossary of Terms Used in Soil Survey and Soil Classification

   www.nrcs.usda.gov/sites/default/files/2022-08/A_Glossary_of_Terms_Used_in_Soil_Survey_and_Classification.pdf

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9. sis.agr.gc.ca › cansis › taxaChapter 17: Terminology for Describing Soils

   sis.agr.gc.ca › cansis › taxa

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   Some other features of soils and sites that may be described are humus form, permafrost, land use, concretions, nodules, calcareousness, salinity, coarse fragments, and reaction. Example of a Pedon Description