| 湖南早志留世沉积演化及页岩气勘探前景 |
| |
| 引用本文： | 肖盼,郭建华,李杰,王张虎,王玺凯.湖南早志留世沉积演化及页岩气勘探前景[J].沉积与特提斯地质,2017,37(1):79-87. |
| |
| 作者姓名： | 肖盼 郭建华 李杰 王张虎 王玺凯 |
| |
| 作者单位： | 1. 中南大学有色金属成矿预测与地质环境监测教育部重点实验室, 湖南长沙 410083;2. 中南大学地球科学与信息物理学院, 湖南长沙 410083 |
| |
| 基金项目： | 中国地质科学院地质力学研究所研究项目《南方地区构造演化与页岩气分布调查》(12120115007301) |
| |
| 摘 要： | 受加里东运动影响,湖南下志留统地层主要分布在湘西北和湘中-湘南地区。随着构造运动、盆地演变和海平面下降,湖南早志留世岩相古地理也发生了巨大的变化。综合露头剖面、钻井岩心和岩石薄片的观察,结合数据分析和前人研究成果,在下志留统识别出比较典型的沉积相:湘西北主要发育陆棚、潮坪、三角洲等浅海相,湘中-湘南主要为深水浊积岩相。文中恢复了下志留统沉积演化,分析了龙马溪组黑色页岩发育特征及其受控因素,建立了页岩沉积模式。
|
| 关 键 词： | 早志留世 沉积相 沉积演化 龙马溪组 黑色页岩 沉积模式 |
| 收稿时间： | 2016/9/15 0:00:00 |
| 修稿时间： | 2016/11/18 0:00:00 |
Sedimentary evolution and shale gas exploration potential of the Lower Silurian strata in Hunan |
| |
| Xiao-Pan,GUO Jian-hu,LI Jie,WANG Zhang-hu,WANG Xi-kai.Sedimentary evolution and shale gas exploration potential of the Lower Silurian strata in Hunan[J].Sedimentary Geology and Tethyan Geology,2017,37(1):79-87. |
| |
| Authors: | Xiao-Pan GUO Jian-hu LI Jie WANG Zhang-hu WANG Xi-kai |
| |
| Institution: | 1. Key Laboratory of Metallogenetic Prognosis of Nonferrous Metallic Deposits, Central South University, Changsha 410083, Hunan, China;2. School of Geosciences and Info-Physics, Central South University, Changsha 410083, Hunan, China |
| |
| Abstract: | The Lower Silurian strata are developed in the northwestern and central-southern parts in Hunan. The representative sedimentary facies may be classified into the shelf, tidal-flat and delta facies in the northwestern part, and the deep-water turbidite facies in the central-southern parts in Hunan. Controlled by the tectonic movements, sea-level changes and sediment supply, the black shales in the basal part of the Silurian strata are restricted only in the shallow-sea environments in the northwestern part of Hunan, where the shales, sandy shales and argillaceous sandstones are observed. The organic carbon contents generally vary between 0.12% and 3.86%, and maximum organic carbon contents occur in the Longshan-Yongshun zone. The organic carbon contents and the thickness of the source rocks sharply decrease toward the southeastern part of Hunan. |
| |
| Keywords: | Early Silurian sedimentary facies sedimentary evolution Longmaxi Formation black shale sedimentary model |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《沉积与特提斯地质》浏览原始摘要信息 |
| 点击此处可从《沉积与特提斯地质》下载免费的PDF全文 |
|
