| 东营凹陷盐底辟作用与中央隆起带断裂构造成因 |
| |
| 引用本文： | 于建国,李三忠,王金铎,王新红,路慎强.东营凹陷盐底辟作用与中央隆起带断裂构造成因[J].地质科学,2005,40(1):55-68. |
| |
| 作者姓名： | 于建国 李三忠 王金铎 王新红 路慎强 |
| |
| 作者单位： | 中国石油化工集团公司胜利油田有限公司物探研究院,山东,东营,257022;中国海洋大学海洋地球科学学院,山东,青岛,266003;中国石油化工集团公司胜利石油管理局物探公司,山东,东营,257100 |
| |
| 基金项目： | 中国科学院知识创新工程项目，国家自然科学基金 |
| |
| 摘 要： | 华北渤海湾盆地济阳坳陷的东营凹陷中央隆起带同生断层非常发育,断层数量较多。主干正断层的下降盘上形成“逆牵引”构造,组成“负花状”地堑断裂系。这些断裂系将中央隆起带分割为一系列小断块。本文将这些断裂系和相关的小断块划分为3个构造,分别称为辛镇、东营和郝家—现河庄(简称郝—现)构造。研究证明,复杂断裂与断块组合构造主要为盐底辟作用的结果,伴生的逆牵引作用形成“包心状”的复杂断裂构造形态,总体上,东营凹陷中央隆起带构造成因是区域北北西—南南东向伸展作用下局部底辟作用和逆牵引作用共同形成的,而不是走滑成因。据强度,底辟构造可分为低幅度隆起和隐刺穿构造。其形成时期主要为沙河街组三段沉积期开始持续到馆陶组沉积前。底辟物质由盐岩为主的塑性层组成。
|
| 关 键 词： | 东营凹陷 中央隆起带 断裂 盐 底辟构造 构造演化 |
| 文章编号： | 0563-5020(2005)01-0055-14 |
| 收稿时间： | 2003-06-27 |
| 修稿时间： | 2003年6月27日 |
SALT DIAPIRISM AND FAULTING OF THE CENTRAL UPLIFT BELT IN THE DONGYING SAG, BOHAI BAY BASIN, NORTH CHINA |
| |
| Yu Jianguo,Li Sanzhong,Wang Jinduo,Wang Xinhong,Lu Shenqiang.SALT DIAPIRISM AND FAULTING OF THE CENTRAL UPLIFT BELT IN THE DONGYING SAG, BOHAI BAY BASIN, NORTH CHINA[J].Chinese Journal of Geology,2005,40(1):55-68. |
| |
| Authors: | Yu Jianguo Li Sanzhong Wang Jinduo Wang Xinhong Lu Shenqiang |
| |
| Institution: | 1. Institute of Geophysic Exploration, Shengli Oilfield Ltd. Corp., China Petroleum & Chemical Corp., Dongying, Shandong 257022;2. College of Marine Geosciences, Ocean University of China, Qingdao, Shandong 266003;3. Geophysic Exploration Company, Management Bureau of Shengli Oilfield, China Petroleum & Chemical Corp., Dongying, Shandong 257100 |
| |
| Abstract: | A lot of growth faults developed in the Dongying Sag of the Jiyang Depression, Bohai Bay Basin, North China. These normal faults made up some flower-like groups, and the grabens occurred in their hanging walls of the major faults accompanying with reverse dragging. On the other hand, the central uplift belt, an important structural unit in the Dongying Sag, was divided into a series of small blocks by these faults. In this paper, these faults and the related small blocks were divided into three main structural belts, namely the Xinzhen, the Dongying and the Haojia-Xianhezhuang(the Hao-Xian for short)structural belts. Our study showed that these complicate blocks and “negative flower-like” fault groups in the central uplift belt resulted from regional NNW—SSE extension accompanying with local salt diapirism as well as related reverse dragging, rather than strike-slip faulting. Based on the diapirism strength, diapirs in these areas could be divided into two types: lower uplift and blind piering structure. Diapirism started at sedimentary period of the 3rd Member of Shahejie Formation, and terminated at sedimentary period of the Guangtao Formation. Diapir was mainly composed of some salts, and minor soft mudstone or other plaster sediments. |
| |
| Keywords: | The Dongying Sag The Central Uplift Belt Faulting Salt Diapirism Tectonic evolution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《地质科学》浏览原始摘要信息 |
| 点击此处可从《地质科学》下载免费的PDF全文 |
|
