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substances > sediment > chemical sediments > concretions

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创建的: 2019-09-04T12:02:37

concretions  

定义

  • Information 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 water collect around a nucleus, such as a pebble, leaf, shell, bone, or fossil.

    来源: https://geokansas.ku.edu/concretion

    创建的: 1/19/22

     (en)

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范围注释，叙词含义说明

  • Use only for mineral deposits formed within sediments (en)

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http://aims.fao.org/aos/agrovoc/c_8881a46c

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