| 黑龙江省三江盆地绥滨坳陷沉降史分析 |
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| 引用本文： | 武国忠,刘安,郭翔燕,吴世敏.黑龙江省三江盆地绥滨坳陷沉降史分析[J].大地构造与成矿学,2007,31(4):412-417. |
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| 作者姓名： | 武国忠 刘安 郭翔燕 吴世敏 |
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| 作者单位： | 1. 中国科学院边缘海地质重点实验室,中国科学院南海海洋研究所,广东,广州,510301
2. 中山大学地质系,广东,广州510275 |
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| 基金项目： | 中石化委托项目DBKT2004YJ018.致谢：在论文完成过程中,得到中国石油化工股份有限公司东北项目部谢晓安,全书进,龚铭,徐洪节,河南油田研究院胡志方,乔桂林的帮助与指导,南京大学贾东教授在审稿时提出了宝贵的修改意见,在此一并致谢! |
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| 摘 要： | 三江盆地绥滨坳陷现有4口钻井的一维正、反演构造沉降模拟结果表明,绥滨坳陷显示出张裂盆地的特征,表现为120Ma之前张裂阶段和之后的裂后热沉降阶段。张裂阶段沉降速率大约为80.37m/Ma,沉降量达1300m,拉张因子大约为1.16。热沉降阶段的沉降速率降到了6.6m/Ma,沉降量也只有200m左右。
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| 关 键 词： | 绥滨坳陷 拉张因子 沉降史分析 |
| 文章编号： | 1001-1552（2007）04-0412-06 |
| 修稿时间： | 2006-12-27 |
TECTONIC SUBSIDENCE HISTORY OF THE SUIBIN DEPRESSION,SANJIANG BASIN IN HEILONGJIANG PROVINCE |
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| WU Guozhong,LIU An,GUO Xiangyan,WU Shimin.TECTONIC SUBSIDENCE HISTORY OF THE SUIBIN DEPRESSION,SANJIANG BASIN IN HEILONGJIANG PROVINCE[J].Geotectonica et Metallogenia,2007,31(4):412-417. |
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| Authors: | WU Guozhong LIU An GUO Xiangyan WU Shimin |
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| Institution: | 1. CAS Key laboratory of Marginal Sea Geology and South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, GD 510301, China; 2. Department of Geology, Sun Yat-Sen University, Guangzhou, GD 510275, China |
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| Abstract: | Based on the sedimentary lithological associations and paleogeographic data from four drilling wells in the Suibin depression of the Sanjiang basin, this paper applies 1-D backstripping and forward modeling methods to calculate the tectonic subsidence and stretch factor of the basin. The results show that the Suibin depression have typical extensional features and could be divided into two extensional stages: the rifting stage prior to 120 Ma and the subsequent thermal subsidence stage. The tectonic subsidence rate is about 80.37m/Ma and stretch factor is 1.16 in the earlier rifting stage, while the thermal subsidence rate is only 6.6m/Ma with a subsidence of about 200 m in the later stage. |
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| Keywords: | Suibin depression stretch factor subsidence analysis backstripping forward modeling |
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