摘要
通过对太原西山奥陶系中统灰岩氧碳同位素和微量元素的测定分析，认为灰岩的原始矿物成分是以文石为主。
On the basis of trace elements and oxygen and carbon isotopes, it is concluded that the original minerology of the limestones was aragonite dominated,not calcite diminated. And the geochmistry of least altered limestones are presented and compared with that of modern carbonate sediments.
