nonmetamorphic

Thân thiện

The geologist examines a nonmetamorphic sandstone sample.

Definition

1. Adjective:
   • Not metamorphic: Describes rocks that have not undergone significant change in mineral composition, texture, or structure due to heat, pressure, or chemically active fluids. It is the opposite of 'metamorphic'.

Usage

• The term 'nonmetamorphic' is used in geology to classify and describe rocks. It is a technical adjective that modifies nouns like 'rock', 'sediment', or 'terrain'.
• It is typically used in scientific, academic, or educational contexts to contrast with metamorphic rocks.

Examples

• Adjective:
  • The geologist identified the layer as nonmetamorphic sandstone, unchanged since its deposition.
  • Compared to the surrounding schist, this nonmetamorphic limestone provides a clear record of the original marine environment.

Advanced Usage

• In geological classification: Used to specify the origin and history of rock formations within a larger geological discussion.
  • The core sample contained nonmetamorphic strata, indicating the area had been tectonically stable.

Variants and Related Words

• Unmetamorphosed (adj): A synonym often used interchangeably with 'nonmetamorphic' in geological literature.
  • The unmetamorphosed shale contained well-preserved fossils.

Synonyms

• Unchanged (in a geological context)
• Unmetamorphosed

Antonyms

• Metamorphic
• Transformed (in a geological context)

Học thuật

Adjective

1. not metamorphic