陈积权,高远,秦健铭,覃祚焕,席党鹏,钟瀚霆,史忠叶

• 1:中国地质大学(北京)地球科学与资源学院
• 2:中国地质大学(北京)生物地质与环境地质国家重点实验室
• 3:成都理工大学沉积地质研究院

摘要(Abstract)：

松辽盆地嫩江组一二段是一套暗色泥岩沉积,也是重要的烃源岩层位,对其开展古气候-古环境研究有益于理解晚白垩世陆地古气候特征和陆相有机质形成与保存过程。通过对松辽盆地东缘岳王城剖面嫩江组一二段开展矿物学和主量元素地球化学分析,探讨其古气候意义。结果表明,全岩矿物主要含有石英、斜长石、钾长石等,黏土矿物主要为蒙脱石(平均84%),其次为伊利石(平均15%),几乎不含高岭石和绿泥石。黏土矿物呈现片层状且边缘参差不齐的显微形貌,蒙脱石结晶度较差,表明主要由陆源物质风化形成。根据黏土矿物主量元素计算的化学风化指数为71~73,其元素组成相比上地壳和花岗闪长岩的平均组成富铝,指示中等强度化学风化作用。结合已有古气候替代性指标和黏土矿物及其化学成分的新数据,研究认为松辽盆地东缘嫩江组一二段沉积时期物源区主要为温带-亚热带半湿润气候。

关键词(KeyWords)： 松辽盆地;嫩江组;黏土矿物;主量元素;化学风化;古气候

Abstract:

Keywords:

基金项目(Foundation): 中央高校基本科研业务费优秀教师基金项目(2652015387);; 中国地质大学(北京)大学生创新创业训练计划项目(2017A11)

作者(Author): 陈积权,高远,秦健铭,覃祚焕,席党鹏,钟瀚霆,史忠叶

参考文献(References)：

• [1]王东坡,刘招君,刘丽.松辽盆地演化与海平面升降[M].北京:地质出版社,1994:1-157.
• [2]侯启军,冯志强,冯子辉.松辽盆地陆相石油地质学[M].北京:石油工业出版社,2009:1-654.
• [3]Wang C,Feng Z,Zhang L,et al.Cretaceous paleogeography and paleoclimate and the setting of SKI borehole sites in Songliao Basin,northeast China[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2013,385:17-30.
• [4]Feng Z,Jia C,Xie X,et al.Tectonostratigraphic units and stratigraphic sequences of the nonmarine Songliao basin,northeast China[J].Basin Research,2010,22(1):79-95.
• [5]Chamberlain C P,Wan X,Graham S A,et al.Stable isotopic evidence for climate and basin evolution of the Late Cretaceous Songliao basin,China[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2013,385:106-124.
• [6]Gao Y,Wang C,Liu Z,et al.Diagenetic and Paleoenvironmental Controls on Late Cretaceous Clay Minerals in the Songliao Basin,Northeast China.Clays and Clay Minerals[J],2015,63(6):469-484.
• [7]Song Z,Qin Y,George S C,et al.A biomarker study of depositional paleoenvironments and source inputs for the massive formation of Upper Cretaceous lacustrine source rocks in the Songliao Basin,China[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2013,385:137-151.
• [8]高瑞祺,赵传本,乔秀云,等.松辽盆地白垩纪石油地层孢粉学[M].北京:地质出版社,1999:1-373.
• [9]Zhao J,Wan X,Xi D,et al.Late Cretaceous palynology and paleoclimate change:Evidence from the SK1(South)core,Songliao Basin,NE China[J].Science China Earth Science,2014,57(12):2985-2997.
• [10]Xi D,Cao W,Huang Q,et al.Late Cretaceous marine fossils and seawater incursion events in the Songliao Basin,NE China[J].Cretaceous Research,2016,62:172-182.
• [11]Chamley H.Clay Sedimentology[M].Berlin:Springer Verlag,1989:1-620.
• [12]洪汉烈.黏土矿物古气候意义研究的现状与展望[J].地质科技情报,2010,29(1):1-8.
• [13]Wu F Y,Sun D Y,Ge W C,et al.Geochronology of the Phanerozoic granitoids in northeastern China[J].Journal of Asian Earth Sciences,2011,41(1):1-30.
• [14]孟凡超,刘嘉麒,崔岩,等.中国东北地区中生代构造体制的转变:来自火山岩时空分布与岩石组合的制约[J].岩石学报,2014,30(12):3569-3586.
• [15]莫午零,吴朝东,张顺,等.松辽盆地北部上白垩统嫩江组物源及古流向分析[J].石油实验地质,2012,34(1):40-46.
• [16]Gao Y,Wang C,Liu Z,et al.Clay mineralogy of the middle Mingshui Formation(upper Campanian to lower Maastrichtian)from the SKIn borehole in the Songliao Basin,NE China:Implications for palaeoclimate and provenance[J].Palaeogeography,Palaeoclimatology,Palaeoecology,2013,385:162-170.
• [17]Liu Z,Zhao Y,Colin C,et al.Chemical weathering in luzon,philippines from clay mineralogy and major-element geochemistry of river sediments[J].Applied Geochemistry,2009,24(11):2195-2205.
• [18]洪汉烈,方谦,王朝文,等.岩浆母质对蚀变黏土矿物的约束:以贵州新民剖面P-T界线附近火山灰层为例[J].地球科学,2017,42(2):161-172.
• [19]Liu Z,Colin C,Huang W,et al.Climatic and tectonic controls on weathering in south china and indochina peninsula:Clay mineralogical and geochemical investigations from the pearl,red,and mekong drainage basins[J].Geochemistry,Geophysics,Geosystems,2007,8(5).
• [20]Deconinck J-F,Blanc-Valleron M,Rouchy J,et al.Palaeoenvironmental and diagenetic control of the mineralogy of upper Cretaceous–lower Tertiary deposits of the central palaeo–Andean basin of Bolivia(Potosi area)[J].Sedimentary Geology,2000,132(3):263-278.
• [21]Thiry M.Palaeoclimatic interpretation of clay minerals in marine deposits:An outlook from the continental origin[J].Earth-Science Reviews,2000,49(1-4):201-221.