khí thành
Definition
- Adjective:
- Pneumatolytic: Relating to or formed by the action of hot gases or vapors on surrounding rocks, especially in the later stages of igneous activity. This is a specialized geological term.
Usage Examples
- Adjective:
- Quá trình khí thành tạo ra nhiều khoáng vật đặc trưng. (The pneumatolytic process creates many characteristic minerals.)
- Đá biến chất tiếp xúc nhiệt dịch và khí thành là một lĩnh vực nghiên cứu phức tạp. (Contact metasomatic and pneumatolytic rock is a complex field of study.)
Advanced Usage
- This term is almost exclusively used in academic and professional contexts within geology and mineralogy to describe processes, phases, or mineral deposits.
- It is commonly found in compound nouns describing specific phenomena, though the core adjective remains 'khí thành'.
Variants and Related Words
- Quá trình khí thành (pneumatolytic process): The geological process itself.
- Giai đoạn khí thành (pneumatolytic stage): A specific stage in the cooling of a magma body.
- Khoáng vật khí thành (pneumatolytic mineral): A mineral formed by pneumatolysis.
- Tác dụng khí thành (pneumatolytic action): The action of the gases.
Synonyms
- Thuộc về nhiệt dịch muộn (late hydrothermal): This can be a related concept, but 'khí thành' specifically emphasizes the gaseous phase rather than hot aqueous solutions.