Ore Body Depletion
nounPronunciation: /ɔːr ˈbɒdi dɪˈpliːʃən/
The gradual exhaustion of economically viable mineral deposits within a mine, ultimately leading to the cessation of extraction activities and triggering the transition to site reclamation and closure. This depletion directly determines the operational lifespan and closure timeline of mining operations.
Plain English
The process of mining out the valuable mineral resources from a site until extraction is no longer economically feasible.
Etymology & History
Usage
"As ore body depletion approached, the mining company began initiating reclamation planning to prepare for eventual site closure."
Style guide notes: Distinguish from operational closure for other reasons (regulatory, market, safety); specify timeline context when discussing.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
How does depletion trigger closure?
When ore body depletion makes extraction economically unviable, mining operations cease and regulatory closure and reclamation processes commence.
Can depleted ore bodies be re-mined?
Potentially, with improved technology or higher commodity prices, but original depletion calculations typically assume permanent closure and reclamation.
Why Test Candidates on This?
Ore body depletion provides contextual understanding of why mine closure occurs and informs long-term reclamation planning horizons.
Required skill level: Junior