苏北盆地高邮凹陷联盟庄地区戴南组物源及沉积相研究  

Provenance and sedimentary facies of the Dainan Formation in the Lianmengzhuang region,Gaoyou depression,northern Jiangsu

作　　者：周健[1,2] 林春明[2] 张永山[3] 姚玉来[4] 陈顺勇[2] 张霞[2] 张妮[2] 

机构地区：[1]中石化胜利油田分公司西部新区研究中心,山东东营257045 [2]内生金属矿床成矿机制研究国家重点实验室南京大学地球科学与工程学院,江苏南京210093 [3]中石化胜利石油管理局井下作业公司,山东东营257000 [4]沈阳地质矿产研究所,辽宁沈阳110034

出　　处：《沉积与特提斯地质》2012年第2期1-10,共10页Sedimentary Geology and Tethyan Geology

摘　　要：综合运用碎屑岩类分析法、重矿物法对苏北盆地高邮凹陷联盟庄地区戴南组的物源方向进行了分析。结果表明,戴南组物源具有不稳定性,早、中期物源均来自柘垛低凸起,物源方向由沿东北方向沉积演变为沿南北方向沉积;晚期物源来自西北部的菱塘桥低凸起。联盟庄地区戴南组沉积物为再旋回沉积物,母岩区构造背景为活动大陆边缘,其源岩主要为花岗岩和中基性火成岩。根据岩心、电测曲线、录井以及分析测试资料,对联盟庄地区戴南组的沉积相平面分布进行了研究,三角洲的展布受河湖作用及物源供应的影响,早、中、晚期分别呈朵状、朵叶状和伸长状。The present paper focuses,in terms of the synthetic analysis of clastic rocks and heavy minerals,on the provenance analysis of the Dainan Formation in the Lianmengzhuang region,Gaoyou depression,northern Jiangsu.The sediment sources are derived from the Zheduo low uplift in the northern part during the early and middle stages,and then from the Lingtangqiao low uplift in the northwestern part during the late stage of the deposition of the Dainan Formation.The sediments in the Formation belong to the recycled deposits.Tectonically,the parent rock provinces are believed to be located on the active continental margins.The source rocks primarily consist of granites and intermediately basic igneous rocks.The sedimentary facies analysis of the Dainan Formation in the Lianmengzhuang region is made on the basis of cores,electric logs,well logs and laboratory analysis.Influenced by the fluviolacustrine processes,the deltas tend to be aligned as flowers,lobes and elongated forms in individual stages.

关 键 词：物源分析 沉积相 母岩 高邮凹陷 戴南组 

分 类 号：P534.5[天文地球—古生物学与地层学]