caliche

名词 n.
中文释义

英文释义

名词 n.
  1. A crude form of sodium nitrate from South America; used as a fertilizer. countable,uncountable
  2. A layer of hard clay subsoil or sedimentary rock; hardpan. countable,uncountable
    — According to local well drillers, in wells drilled on the high plains a few hundred feet back from the caliche escarpment or in other locations on the high plains in this area no hard caliche or white layer, such as would characterize a soft layer of high lime-carbonate content, is generally reached at a depth corresponding to the elevation of the caliche escarpment.

词形变化

caliches plural

词源

From Spanish caliche, from Latin calx (“pebble”); compare chalk.
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