marl

/mɑ:l/

Thân thiện

A farmer spreads marl over a field to enrich the soil.

Definition

1. Noun:
   • A type of soil or earthy deposit: Marl is a loose, crumbly, and often clay-rich soil or sediment. Its key characteristic is that it contains significant amounts of calcium carbonate (from materials like calcite or dolomite), which makes it useful for improving soil quality.

Usage

Marl is primarily a technical term used in geology, agriculture, and soil science. It refers to a specific natural material valued for its lime content. - As a soil amendment to reduce acidity. - As a material in cement production. - As a descriptive term in geological surveys.

Examples

• Noun:
  • The farmer spread marl on the fields to neutralize the acidic soil.
  • The cliff face revealed layers of clay and marl.
  • This particular marl deposit is rich in fossilized shells.

Advanced Usage

• "To marl" (verb, archaic/technical): The act of applying marl to land as a fertilizer.
  • Farmers in the 18th century would marl their fields every few years.

Variants and Related Words

• Marly (adj): Having the qualities of or resembling marl.
  • The marly soil was perfect for growing certain vines.

Synonyms

• Calcareous clay: A clay containing calcium carbonate.
• Lime-rich earth: Earth or soil with a high lime content.

Different Meanings

The word "marl" is highly specific and does not commonly have other distinct meanings. Its definition is consistently tied to its geological and agricultural composition.

Học thuật

Noun

1. a loose and crumbling earthy deposit consisting mainly of calcite or dolomite; used as a fertilizer for soils deficient in lime