| 松辽盆地白垩系岩石组合与粒度分布特征 |
| |
| 引用本文： | 刘万洙,刘招君,王东坡.松辽盆地白垩系岩石组合与粒度分布特征[J].吉林大学学报(地球科学版),1996(2). |
| |
| 作者姓名： | 刘万洙 刘招君 王东坡 |
| |
| 作者单位： | 长春地质学院能源系 |
| |
| 摘 要： | 采用岩石学与粒度分布特征相对比的方法，系统研究了松辽盆地３个典型剖面和１０余口探井的白垩系碎屑岩层序。结果表明，陆相碎屑沉积的岩石组合及其岩性、岩相特征与相应的薄片粒度分布结果（直方图、概率累积曲线、偏度（ＳＫ１）和标准偏差（δ１）等）具有良好对应关系。据此可明显识别出松辽盆地白垩系（泉头组－嫩江组）的５种主要沉积相，即冲积扇相、冲泛平原相、三角洲相、滨浅湖相和（湖泊）水下重力流相。文中分别论述了上述５种沉积相的岩石组合特征与粒度分布特征，探讨了二者内在联系。本文提出的陆相沉积环境定量判别标志，在其它陆相盆地沉积环境研究中具有借鉴意义。
|
| 关 键 词： | 松辽盆地，岩石组合，粒度分布，定量判别，白垩系 |
RELATIONSHIP BETWEEN SEDIMENTARY FACIES AND GRAIN SIZE DISTRIBUTION OF THE SONGLIAO CRETACEOUS SEQUENCE,NE CHINA |
| |
| Liu Wanzhu, Liu Zhaojun, Wang Dongpo.RELATIONSHIP BETWEEN SEDIMENTARY FACIES AND GRAIN SIZE DISTRIBUTION OF THE SONGLIAO CRETACEOUS SEQUENCE,NE CHINA[J].Journal of Jilin Unviersity:Earth Science Edition,1996(2). |
| |
| Authors: | Liu Wanzhu Liu Zhaojun Wang Dongpo |
| |
| Abstract: | Songliao Basin,situated in the northeast part of China,is an oil and gas bearing Mesozoic sedimentary basin of the NNE direction with an area about 260 000 km2.Based on the sedimentological study of outcrops and cores in the basin and also that of the logs,as well as the seismic data,the authors identify and classify the Cretaceous strata into ten sedimentary.facies within the Songliao Basin. They are alluvial fan,fluvial plain, fan-delta,delta,shore shallow lacustrine,beach flat,semideep-deep lacustrine,subaquatic gravity flow,lacustrine bog,and volcanic-pyroclastic facies.The grain size analysis of the sedimentary sequence above shows that there is a significant correlation between grain size distribution and sedimentary faciles. And in turn we can use the characteristrics of grain size distribution to idntify the typfes of sedimentary facies,The mechanism why the relationship can exist between grain size and facies is also discussed. |
| |
| Keywords: | Songliao basin lithologic association grain size distribution quantitative determination Cretaceous |
| 本文献已被 CNKI 等数据库收录！ |
|
