Sentence examples for has been mined from inspiring English sources

Nauru has been mined to death.

Phosphate has been mined on Nauru since 1907.

Iron has been mined intermittently since the late 19th century.

Of these minerals, only gold has been mined intensively.

Supporting data has been mined and is endlessly repeated, like prayers.

Cerro de Pasco has been mined, mainly for silver, lead and zinc, since the 17th century.

Since Roman times, copper has been mined; chrome and asbestos are also extracted.

In the United States it has been mined extensively in North Carolina, California, and Nevada.

It has been mined at Keystone, S.D., and in South Africa, Zimbabwe, and several other countries.

Lead has been mined and smelted for at least 8,000 years.

A considerable amount of lignite (brown coal) has been mined there.