caliche-topped
Học thuậtThân thiện
Definition
- Adjective: Covered with or having a surface layer of caliche, which is a hardened, crust-like layer of soil or sediment cemented by calcium carbonate.
Usage
- Adjective: Used to describe land, soil, or a surface that is covered by a hardpan layer of caliche.
- The construction crew had difficulty digging through the caliche-topped ground.
- The caliche-topped plain stretched for miles, supporting only sparse vegetation.
Advanced Usage
- Technical/Geological Context: The term is primarily used in geology, soil science, agriculture, and civil engineering to describe a specific land condition.
- The road was built on a caliche-topped substrate, which provided a stable but difficult-to-excavate foundation.
Variants and Related Words
- Caliche (n): The hard, often white, layer of soil in which the soil particles are cemented together by calcium carbonate.
- Calcareous (adj): Containing calcium carbonate; chalky. (Describes a similar material property but not necessarily a hardened surface layer).
- Hardpan (n): A hardened layer of soil, which can be formed by various materials including caliche.
Synonyms
- Caliche-crusted
- Hardpan-topped (when the hardpan is specifically caliche)
Antonyms
- Friable (adj): Easily crumbled or pulverized (describing loose, soft soil).
- Unconsolidated (adj): (Of sediment) loose and not cemented into solid rock or hardpan.
Adjective
- covered with caliche, a hard calcium-carbonate encrusted soil