| 济阳坳陷老斜452井介形类化石及其地层意义 |
| |
| 作者单位： | 胜利石油管理局地质录井公司 |
| |
| 摘 要： | 在对济阳坳陷老斜452井的古生物分析中,发现穴状女星介(相似种)Cypridea(Cypridea)cf.cavernosa、蒙阴女星介C.(C.)mengyinensis等介形类化石,说明该地区发育了白垩纪地层。济阳坳陷中生代地层的细分主要是依据区域岩性、电性及孢粉化石等地质资料,但白垩系的岩性、电性与上下地层相似,且化石稀少,缺乏充足的古生物资料,因此难以系统、准确地划分。老斜452井发现介形类化石给济阳坳陷白垩系的细分提供了重要的古生物学依据,为该区的深入研究提供了翔实的基础资料。
|
| 关 键 词： | 老斜452井 介形类 生物地层 白垩系 济阳坳陷 山东 |
DISCOVERY OF FOSSIL OSTRACODES IN WELL LAOXIE 452 IN THE JIYANG SAG AND ITS STRATIGRAPHIC SIGNIFICANCE |
| |
| Authors: | DENG Mei-yin CHUN Ping LI Jia-gui and GE Rui-quanGeological Logging Branch of Shengli Oilfield Company SINOPEC Dongying |
| |
| Institution: | DENG Mei-yin,CHUN Ping,LI Jia-gui and GE Rui-quanGeological Logging Branch of Shengli Oilfield Company,SINOPEC,Dongying,257015 |
| |
| Abstract: | During the paleontologic analysis of Laoxie-452 Well in the Jiyang Depression, Cypridea (C.) cf. caverncsea, C.(C.) mengyinensis, and other fossil ostracodes were found, showing that Cretaceous strata are developed in this area. However, subdivision of the Mesozoic strata in the Jiyang Depression is chiefly based on regional lithologic characters, electricity, sporo-pollen, and other geologic data, but the lithologic characters and electricity of the Cretaceous strata above and below are similar to each other, and these strata are rare in fossil and insufficient in paleontologic data. Hence, it is difficult to systematically and accurately divide them. The discovery of fossil ostracodes in the Laoxie-452 Well provides important paleontologic evidence for the detailed division of the Cretaceous strata in the Jiyang Depression and also provides full and accurate data for an intensive study of this area. |
| |
| Keywords: | Well Laoxie-452 biostratigraphy ostracodes Cretaceous System Jiyang Depression Shandong Province |
| 本文献已被 CNKI 等数据库收录！ |
|
