The asphaltene RICO indicates that the Middle and UpperOrdovician may be the main source rocks of the oils in Lunnan, Tahe and Hadexun Oilfields.
沥青质的RICO研究结果表明,中、上奥陶统烃源岩为轮南、塔河、哈得逊原油的主力烃源岩。
2
The two karst developing periods for the Middle and UpperOrdovician in the Lunnan area are consistent with two transgressions of the Carboniferous.
轮南地区发育的两期岩溶与石炭纪两次较大的海侵时间相一致。
3
There were various trap types developed in the Middle UpperOrdovician, including sedimentary type, reef type and structure controlled sedimentary type.