nonmetamorphic
Definition
- 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)
Adjective
- not metamorphic
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