• The lead-zinc deposits occur in the Lower Silurian Meiziya Formation, Middle Silurian Shuanghezhen Formation, Middle Devonian Dafenggou Formation and Upper Devonian Nanyangshan Formation.

    铅锌矿赋存梅子组、志留统双河镇组及中泥统大枫沟组、泥盆统南羊山组;

    youdao

  • The iron bearing formations mainly occur in the Middle and , especially, Upper Devonian strata.

    矿建造主要赋存中上泥 ,而以上泥盆统为主。

    youdao

  • The iron bearing formations mainly occur in the Middle and , especially, Upper Devonian strata.

    矿建造主要赋存中上泥 ,而以上泥盆统为主。

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定