关于敦化盆地下白垩统的讨论

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英文篇名：A DISCUSSION ON THE LOWER CRETACEOUS IN THE DUNHUA BASIN 中文刊名：地层学杂志 英文刊名：Journal of Stratigraphy 作者：姚武君 ; 王海峰 ; 张白林 ; 高培丞 英文作者：YAO Wu-jun~ 1) ; WANG Hai-feng~ 2) ; ZHANG Bai-lin~ 1) and GAO Pei-cheng~ 3) 1) Southwest Petroleum University ; Chendu 610500 ; 2) Geological Exploration and Development Research Institute of Chuanqing Drilling Engeering Company ; Chengdu 610051 ; 3) Eastern Sichuan Gas Mine of Southwest Oil-gas Field ; Dazhou 635000 中文关键词：盆地演化 ; 下白垩统 ; 敦化盆地 ; 吉林省 ; 黑龙江省 英文关键词：facies ; basin evolution ; Lower Cretaceous ; Dunhua Basin ; Jilin Province ; Heilongjiang Province 出版日期：2009-04-15 机构：西南石油大学资源与环境学院;川庆钻探工程有限公司地质勘探开发研究院;西南油气田川东北气矿; 年：2009 期：02 出版单位：地层学杂志

摘要

前人根据敦化盆地的地层的地层,认为该盆地下白垩统为河流—湖泊相碎屑岩。通过对新钻的敦参1井岩屑录井资料的分析、对16条二维地震资料的层位标定与追踪,以及对敦化盆地早白垩世盆地演化阶段的分析,得到了以下主要结论:1)敦化盆地下白垩统可能有两种分布形态,在盆地的主体部位,以浅变质岩形态存在,而在其他部位则以正常沉积岩形态零星存在;2)敦化盆地白垩系的分布规模不大,夹持于一个北北东向的狭窄长槽内;3)敦化盆地早白垩世处于裂谷盆地发展的初始张裂阶段;4)敦化盆地下白垩统不宜作为勘探目的层。
Previous researchers interpreted the Lower Cretaceous in the Dunhua Basin as detrital rock of fluvial or lacustrine facies based on outcrop observations. In this paper, by analyzing drillcore cutttings in the DunCan1 core, seismic data from sixteen 2D seismic cross-sections,and basin evolutionary stages, we came to the following conclusions: 1) the Lower Cretaceous in the Dunhua Basin exists in two types: epimetamorphic rocks in the main part of the basin and sedimentary rocks in other parts of the basin. 2) the scale of this Early Cretaceous basin is limited in a NNE narrow trough. 3) In the Early Cretaceous period,this basin was at the early rifting stage. 4) the Lower Cretaceous can not be targeted as a potential source rock.

引文

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