Hypo-thermal tungsten deposits came into being after intrusion of ore-bearing Yanshanian granite in the Wumushan area.

 
  • 五畝山地區燕山期花崗巖侵入活動(dòng)后,形成了高溫熱液裂隙石英脈型黑鎢礦(白鎢礦)礦床。
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