裂变径迹研究构造抬升应用实例  

Application examples of research on tectonic uplift by using fission-track dating

作　　者：陈安定[1] 万景林[2] 郭彤楼 

机构地区：[1]中石化集团公司江苏油田分公司地质科学研究院,江苏扬州225009 [2]中国国家地震局地质研究所,北京100029 [3]中石化集团公司南方勘探开发分公司,云南昆明650021

出　　处：《石油学报》2004年第4期29-32,共4页Acta Petrolei Sinica

基　　金：中国石油化工集团公司东部深层科技工程项目"江苏下扬子区中;古生界烃源岩研究及资源评价"部分成果

摘　　要：介绍了利用裂变径迹年龄剖面求取地质构造抬升时间、抬升幅度、抬升速率的方法 ,列举了江苏滨海凸起、江西弋阳盆地 2个应用实例。前者的构造抬升时间为 3 8～ 15Ma ,与本区三垛事件、盐城事件相吻合 ,抬升幅度大于 3 10 0m ,抬升速率为 2 0～ 5 0m /Ma ;后者的构造抬升时间为 2 0～ 14Ma ,抬升幅度为 2 60 0m。该研究结果得到了地震资料。A method for determining time, lift altitude and rising velocity of tectonic uplift by using the fission track dating profile has being introduced. This method has been used for researching the tectonic uplifts of the Binhai Arch located in margin of Jiangsu Province and Yiyang Basin of Jiangxi Province. For Binhai Arch, the uplift time ranges from 38 to 15 million years corresponding to Sanduo event and Yancheng event, and the rise altitude is over 3100 meters, and the rising velocity is from 20 to 50 meters per million years. For the Yiyang Basin, the uplift time is from 20 to 14 million years, and the rise altitude is 2600 meters. Above conclusion has been proved by seismic and geochemical information.

关 键 词：裂变径迹 裂变径迹年龄 构造抬升 埋藏史 原型盆地 苏北盆地 弋阳盆地 

分 类 号：TE111.2[石油与天然气工程—油气勘探]