Yuerya-type gold deposit occurs within the Yanshanian granite and its contact zone with Mesoproterozoic dolomitite.

 
  • (2)產(chǎn)于中生代花崗巖中及其接觸帶中的峪耳崖式金礦;
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan