| 塔里木地区寒武纪岩相古地理 |
| |
| 引用本文： | 冯增昭,鲍志东,吴茂炳,金振奎,时晓章.塔里木地区寒武纪岩相古地理[J].古地理学报,2006,8(4):427-439. |
| |
| 作者姓名： | 冯增昭 鲍志东 吴茂炳 金振奎 时晓章 |
| |
| 作者单位： | 中国石油大学(北京),北京,100083 |
| |
| 基金项目： | 中国石油天然气总公司资助项目 |
| |
| 摘 要： | 塔里木地区是以当今的塔里木盆地为主体并包括其周边山地的广大地区,北至中天山,南至西昆仑山,西至我国国界,东至阿尔金山,面积逾100万km2。在39个露头剖面和钻井剖面的各种单因素定量及定性资料的基础上,采用单因素分析多因素综合作图法,编制出了塔里木地区寒武系下、中、上统的各种单因素图及相应的寒武纪早、中、晚世的岩相古地理图。这些岩相古地理图最主要的特征是定量,即每个古地理单位的划分和确定都有确切的定量资料与定量的单因素图。这种定量的岩相古地理图在塔里木地区还是首次出现。在早寒武世,塔里木地区是一个碳酸盐岩台地,其中散布着准滩、云坪和膏盐湖。其北侧和东北侧是南天山和塔东硅岩石灰岩泥岩盆地。其南侧是昆仑台地,其中有2个小陆地。其东南侧有阿尔金陆。中寒武世和晚寒武世的岩相古地理格局与早寒武世相似,但陆地面积逐渐缩小,盆地面积逐渐扩大,塔里木碳酸盐岩台地变化不大。从早寒武世到晚寒武世是一个逐渐的海进过程。
|
| 关 键 词： | 塔里木地区 寒武纪 岩相古地理 单因素分析多因素综合作图法 定量 |
| 文章编号： | 1671-1505（2006）04-0427-13 |
| 收稿时间： | 2006-03-10 |
| 修稿时间： | 2006-04-03 |
Lithofacies palaeogeography of the Cambrian in Tarim area |
| |
| Feng Zengzhao,Bao Zhidong,Wu Maobing,Jin Zhenkui,Shi Xiaozhang.Lithofacies palaeogeography of the Cambrian in Tarim area[J].Journal of Palaeogeography,2006,8(4):427-439. |
| |
| Authors: | Feng Zengzhao Bao Zhidong Wu Maobing Jin Zhenkui Shi Xiaozhang |
| |
| Abstract: | The Tarim area in this paper refers to the present Tarim Basin and its surrounding mountains,bounded on the north by the Middle Tianshan Mountains,on the south by the Kunlun Mountains,on the west by boundary line of our country,and on the east by the Altun Mountains.It covers an area of more than 1 000 000 km 2 .Based on the quantitative and qualitative data from the study of stratigraphy and petrology of outcrops and well sections,according to the single factor analysis and multifactor comprehensive mapping method,the single factor maps of the Lower,Middle and Upper Cambrian,and the lithofacies palaeogeography maps of the Early,Middle and Late Cambrian of Tarim area,are compiled.The most important character of these lithofacies palaeogeography maps is quantification.Quantification means that the determination of each palaeogeography unit is based on the accurate quantitative data and the quantitative single factor maps.It is the first time to apply this quantitative method in the Tarim area.In the Early Cambrian,the Tarim area was mainly a carbornate platform,in which there were penebanks,dolomitic flat,and gypsum-halite lake.The South Tianshan Basin and East Tarim Basin were siliceous rock-limestone-mudstone basin.The Kunlun Platform was situated in the south,in which there were two small lands.The Altun Land was situated in the southeast.In the Middle and Late Cambrian,similar to the lithofacies palaeogeographic pattern of the Early Cambrian,the land area was gradually reduced,the basin area was enlarged,while the Tarim carbonate platform changed little.The transgression continued from the Early Cambrian to the Late Cambrian. |
| |
| Keywords: | Tarim area Cambrian lithofacies palaeogeography single factor analysis and multifactor comprehensive method quantification |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
