They are controlled by shear fracture belt of epimetamorphic rock series of Precambrian Period.

 
  • 主要賦存于前寒武紀淺變質(zhì)巖系中,受剪切斷裂帶控制。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan