mỏ lộ thiên
Definition
- Noun:
- Open-pit mine: A mining operation where minerals or rocks are extracted from the earth's surface by removing overlying soil and rock layers, creating a large, visible pit. This contrasts with underground mining.
- Surface mine: A general term for any mine where the excavation is open to the surface.
Usage Examples
- Noun:
- Mỏ lộ thiên này khai thác than đá. (This open-pit mine extracts coal.)
- Việc đóng cửa một mỏ lộ thiên có thể kéo dài nhiều năm. (The closure of a surface mine can take many years.)
- Họ đang mở rộng mỏ lộ thiên để tiếp cận quặng sâu hơn. (They are expanding the open-pit to access deeper ore.)
Advanced Usage
- The term is often used in technical, environmental, and economic contexts related to resource extraction, land use, and rehabilitation.
- "Khai thác mỏ lộ thiên": open-pit mining / surface mining (the method itself).
- Khai thác mỏ lộ thiên thường có chi phí thấp hơn so với khai thác hầm lò. (Open-pit mining often has lower costs than underground mining.)
Variants and Related Words
- Mỏ khai thác lộ thiên (n): Another term for an open-pit or surface mine.
- Mỏ hầm lò (n): Underground mine (the direct antonym).
- Hố mỏ lộ thiên (n): The open pit itself (the excavation).
Synonyms
- Open-cast mine (chiefly British English)
- Surface mine
- Strip mine (a specific type of surface mine for layered deposits like coal)
Related Terms
- Đất đá phủ (n): Overburden (the soil and rock removed to access the ore).
- Bãi thải (n): Dump or spoil tip (where overburden is deposited).
- Bờ mỏ (n): Mine bench or ledge (the stepped sides of the pit).