松辽盆地南部埋藏史  

The Burial History of the Southern Songliao Basin

作　　者：郭巍[1] 于文祥[2] 刘招君[1] 马琳[1] 

机构地区：[1]吉林大学地球科学学院,长春130026 [2]长春市国土资源局,长春130026

出　　处：《吉林大学学报（地球科学版）》2009年第3期353-360,共8页Journal of Jilin University：Earth Science Edition

基　　金：国家重大油气专项(ZP-Y-01)

摘　　要：盆地沉降史和埋藏史分析是油气评价的重要组成部分,根据松辽盆地南部测井资料,在地层剥蚀量计算的基础上,开展了沉积速率、沉降速率和埋藏史研究。沉积速率和沉降速率模拟结果表明:沙河子组、营城组沉积速率和沉降速率最高,泉头组、明水组较高,而登娄库组、青山口组、姚家组、四方台组较低。埋藏史研究结果表明:沙河子组—营城组时期,具有快速沉降、快速沉积和快速埋藏特征;营城组末期遭受剥蚀,地层缺失和剥蚀自西向东有增大的趋势;登娄库组—明水组时期,埋藏史特征表现为较快速的沉降、沉积和埋藏;姚家组以下的地层保存相对完整,嫩江组上部—明水组地层剥蚀较大,东南隆起区基本缺失嫩江组三段—明水组;古近纪—新近纪,总体特征是缓慢抬升,之后缓慢下降、缓慢沉积、缓慢埋藏。The analysis of basin subsidence history and buried history are important part of hydrocarbon appraisement. According to the well logging data of south Songliao basin,on the basis of formation denude, the authors evolved the research on deposition rate, subsidence rate and buried history. The simulation of deposition rate and the subsidence rate indicate that the deposition rate and the subsidence rate of the Shahezi Formation, the Yingcheng Formation is the rapidest, the Quantou Formation, the Mingshui Formation is high,and the Denglouku Formation,the Qingsankou Formation, the Yaojia For mation,the Sifangtai Formation is low;the finding of the buried history make known the significance that fast deposition,fast subsidence and fast burial from the Shahezi Formation to the Yingceng Formation. The strata is denuded in the Irate Yingcheng Formation, stratigraphic break and denudation present in creasingly tendency from west to east; the significance of buried history is the more fast deposition, sub sidence and interment. From the Denglouku Formation to the Mingshui Formation, the subsidence stay entire from the Yaojia Formation,the strata from upper the Nenjiang Formation to the Mingshui Forma- tion denudation acutely. The strata basically absent in the southeast uplift of the basin from The Nengjiang Ⅲ Formation to the Mingshui Formation. From the Paleogene to the Neogene,the overall sig nificient present that strata uplift slowly,then fall slowly, deposition slowly, bury slowly.

关 键 词：松辽盆地南部 埋藏史 剥蚀量 沉积速率 沉降速率 

分 类 号：P618.13[天文地球—矿床学]