"grade" nach Englisch mit Beispielen - Kollokationen-Wörterbuch Englisch
- In 30 years, average ore grades have declined from 15 grams of gold a ton to about 5 grams.
- Almost all of Hubbert peaks must be put in the context of high ore grade.
- Average ore grades are in decline for most minerals, yet production is increasing.
- Key environmental indicators that reflect increasingly expensive production are primarily associated with the decline in average ore grades of many minerals.
- There is an abandoned mercury mine in Sızma with the ore grade of 0.6-1 % which was once a major economic activity of the town.
- Declining ore grades at some mines can also be a reason for care and maintenance announcements.
- The average ore grade was 0.06% and total production from the three pits was about 11,000 tonnes of uranium.
- Resources change over time with technology and economics; more efficient recovery leads to a drop in the ore grade needed.
- Average ore grades were 16.0 ounces per ton silver and 0.68% copper.
- The recoverable ore grade at the mine is about 0.26 carats (52 mg) per ton.
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