shaly

The geologist examined the shaly rock formation.

Definition

1. Adjective:
   • Containing or resembling shale: "shaly" describes something that consists of, contains, or has the characteristics of shale, a fine-grained sedimentary rock composed of clay and silt.

Usage Examples

• (The rock layers contained or resembled shale.)
• (The soil contains a high proportion of shale particles.)
• (The texture was similar to that of shale.)

Advanced Usage

• "shaly facies": a geological term referring to rock layers with a high shale content, often indicating a specific depositional environment.

  • The shaly facies of the formation suggest a low-energy marine setting. (The rock layers rich in shale indicate calm water conditions.)

• "shaly sandstone": sandstone that contains a significant amount of shale, affecting its porosity and permeability.

  • Drilling through shaly sandstone can be challenging due to its variable properties. (The sandstone mixed with shale creates difficulties for extraction.)

Variants and Related Words

• Shale (n): the base noun; a fine-grained sedimentary rock.

  • Shale often contains fossils and can be a source of oil. (The rock type that gives "shaly" its meaning.)

• Shaliness (n): the state or quality of being shaly.

  • The shaliness of the deposit reduced its economic value. (The high proportion of shale made it less useful.)

Synonyms

• Argillaceous: containing or resembling clay (a related term for fine-grained sediments).

  • The argillaceous material in the rock made it shaly. (Clay-rich composition.)

• Clayey: having a high content of clay, similar to shale.

  • The clayey soil was difficult to drain. (Similar to shaly soil.)

Related Idioms