玛瑙山铁锰多金属矿床产于棋梓桥组底部层位中，矿体呈似层状。

Manaoshan Fe Mn polymetallic ore deposit occurs in the bottom of Qiziqiao formation.

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玛瑙山铁锰多金属矿床产于棋梓桥组底部层位中，矿体呈似层状。

Manaoshan Fe Mn polymetallic ore deposit occurs in the bottom of Qiziqiao formation.

youdao