| PDF: | |
| Time: | 2009 |
| Journal: | Earth Sience Frontiers |
| Volumn: | 16 |
| Issue: | 6 |
| Pages: | 104-112 |
| Type: | Other |
| Author: | Youfeng Gao,Chengshan Wang,Pujun Wang |
Abstract: | CCSD-SK-In borehole(China Cretaceous Continental Scientific Drilling-SongkeⅠ—the north borehole)is the north one of the two drilling wells of the Cretaceous Scientific Drilling Project in Songliao Basin.It is located in Talaha syncline in Gulong sag of center depression,north Songliao Basin.Based on the detailed description of the cores from the Taikang Formation to the first member of the Nenjiang Formation in CCSD-SK-In borehole,we have established the core section and identified five special lithological layers,including dolomite,volcanic ash,oil shale,lime mudstone and marl.The total number of special lithological layers is 73 with total thickness of 7.08 m.They distribute in the second to the fifth member of the Nenjiang Formation and the second member of the Mingshui Formation.The detailed description of the cores from CCSD-SK-In borehole and the identification of special lithological layers will benefit the further studies. |