The kilns were used to process silver and lead ore and are no longer in operation today.

这只是建于1876年的一个老窑，这个窑炉是用来锻炼银子和铅的，今日已不再使用。

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There is abundant information of silver-lead ore in historical works. It stretches over the southern margin of the North China platform and the northern and southern Qinling fold belts.

它地跨华北地台南缘和北、南秦岭褶皱带，区内银、铅矿的分布与一定的地层有着特殊的联系。

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Consistence between isotopic model age of lead ore and intrusion age of quartz porphyry shows close relations among structure movements, magmatism and mineralization in Stage of Yenshan.

矿石铅同位素模式年龄和石英斑岩体侵入年龄的一致性反映燕山期构造、岩浆和成矿作用的密切关系。

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It had resources: oil, gas, copper, lead, iron ore.

NEWYORKER: Election, Monitored

The Company has interests in mining for aluminum, borax, coal, copper, gold, iron ore, lead, silver, tin, uranium, zinc, titanium, dioxide feedstock, diamonds, talc and zircon.

FORBES: Guru Stocks at 52-Week Lows: VALE, RIO, FB, AAUKY, HPQ

Massive ore deposits of copper, lead, zinc, silver, gold and other metals formed in this way.

ECONOMIST: Minerals