| 释义 |
Xinyang Group
基本例句
信阳群
The Xixia rutile deposit sits in southern bonier of eastern block of the Qinling orogenic belt.Orebody occurs in the third member of Guishan formation, Paleozoic Xinyang group.西峡金红石矿床位于秦岭造山带东段南缘，矿体赋存于古生代信阳群龟山组第三段，含矿岩石为含金红石角闪质片岩。 |