acidic rock meaning in Chinese

硅质岩
酸性岩类

Magmatic intrusion took place mainly during the yenshan and himalayan epochs and is dominated by intermediate to acidic rocks ; basic to ultra - basic intrusive rocks are only locally observed
在时间上，岩浆侵入活动主要发生在燕山期和喜马拉雅期，以中酸性岩占绝对优势，基性岩仅零星见及。
A comparison of the prospecting model of the hf type with the prediction model of the vms type reveals that their thermal dynamic mechanisms are different : the former is related to basic - ultrabasic rock intrusion , while the latter to acidic rock intrusion
与白银铜矿区域地球化学预测模式相比较，富铁型铅锌矿床中除铁族元素指示基性超基性岩侵入事件外，其他元素均大致相似，两大类矿床形成的初始热动力条件不同。