| 四川地区早志留世岩相古地理 |
| |
| 引用本文： | 郭英海,李壮福,李大华,张天模,汪泽成,余继峰,奚砚涛.四川地区早志留世岩相古地理[J].古地理学报,2004,6(1):20-29. |
| |
| 作者姓名： | 郭英海 李壮福 李大华 张天模 汪泽成 余继峰 奚砚涛 |
| |
| 作者单位： | 1.中国矿业大学 江苏徐州 2210082重庆煤田地质勘探研究所 重庆 400042;3.重庆工程职业技术学院 重庆 4000374石油勘探开发科学研究院 北京 100083;5.山东科技大学 山东泰安 271019 |
| |
| 基金项目： | “九五”攻关项目 ( 96-110 -0 2 -0 3 )部分研究成果 |
| |
| 摘 要： | 四川地区早志留世沉积岩系形成于晚奥陶世-早志留世的前陆盆地演化阶段。早志留世龙马溪期主要为局限的深水陆棚环境。小河坝期表现为浅水陆棚的扩展和深水陆棚的萎缩，沉积分异作用加剧，呈现出碳酸盐台地、浅水陆棚、深水陆棚共存的古地理格局。韩家店期主要为潮坪-浅水陆棚沉积。早志留世四川地区表现为沉积盆地充填变浅和海退式的演化趋势，具多物源的混合型陆棚沉积性质，沉积体系展布和沉积演化主要受包括黔中古隆起在内的前陆隆起带的NW方向扩展作用控制。有利储集体的发育主要取决于沉积环境，浅海砂坝和碳酸盐台地边缘相是有利的储集相带，如川东地区的“小河坝砂岩”和川南及川北地区发育的生物礁灰岩。
|
| 关 键 词： | 岩相古地理 沉积岩系 早志留世 四川 |
| 文章编号： | 1671-1505(2004)01-0020-10 |
| 修稿时间： | 2003年3月21日 |
Lithofacies palaeogeography of the Early Silurian in Sichuan area |
| |
| Guo Yinghai Li Zhuangfu Li Dahua Zhang Tianmo Wang Zecheng Yu Jifeng Xi Yantao China University of Mining and Technology,Xuzhou ,Jiangsu Chongqing Geological Institute of Coal-field Exploration,Chongqing Chongqing Vocational Institute of Engineering,Chongqing Scientific Research Institute of Petroleum Exploration and Development,CNPC,Beijing Shandong University of Science & Technology,Tai'an ,Shandong.Lithofacies palaeogeography of the Early Silurian in Sichuan area[J].Journal of Palaeogeography,2004,6(1):20-29. |
| |
| Authors: | Guo Yinghai Li Zhuangfu Li Dahua Zhang Tianmo Wang Zecheng Yu Jifeng Xi Yantao China University of Mining and Technology Xuzhou Jiangsu Chongqing Geological Institute of Coal-field Exploration Chongqing Chongqing Vocational Institute of Engineering Chongqing Scientific Research Institute of Petroleum Exploration and Development CNPC Beijing Shandong University of Science & Technology Tai'an Shandong |
| |
| Institution: | 1.China University of Mining and Technology，Xuzhou 221008，Jiangsu;2.Chongqing Geological Institute of Coal field Exploration, Chongqing 400042;3.Chongqing Vocational Institute of Engineering ，Chongqing 400037;4.Scientific Research Institute of Petroleum Exploration and Development，CNPC，Beijing 100083;5.Shandong University of Science & Technology，Tai'an 271019，Shandong |
| |
| Abstract: | Early Silurian sedimentary rocks in Sichuan area were formed in the foreland basin stage during the period from the Late Ordovician to the Early SilurianIn Longmaxi Age of the Early Silurian，the study area was mainly a restricted deep shelf In Xiaoheba Age，it behaved as the expansion of the shallow shelf and reduction of the deep shelf，and the sedimentary differentiation was intensifiedThe palaeogeographic framework was the coexistence of carbonate platform，shallow and deep shelvesIn Hanjiadian Age，it mainly was the tidal flat shallow shelf environmentsEarly Silurian in the study area showed an evolutionary trend of shallowing filling up and regression，and was characterized by blending continental shelf with multi sourcesThe distribution of sedimentary systems and sedimentary evolution was controlled by the NW direction squeezing of the foreland upheaval zone including the Qianzhong upheaval from the Late Ordovician to the Early SilurianThe development of the favorable reservoir body was mainly dependent on the sedimentary environmentsThe seashore sand bank and carbonate platform margin were the favorable reservoir body belts such as the“Xiaoheba sandstone”in eastern Sichuan area and the bioherm limestone in southern and northern Sichuan area |
| |
| Keywords: | sedimentary system lithofacies palaeogeography Early Silurian Sichuan area |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《古地理学报》浏览原始摘要信息 |
| 点击此处可从《古地理学报》下载免费的PDF全文 |
