松辽盆地青山口地区嫩江组下部生物地层及环境变化BIOSTRATIGRAPHY AND PALEOENVIRONMENTAL CHANGE OF THE LOWER NENJIANG FORMATION IN THE QINGSHANKOU AREA,SONGLIAO BASIN
闫晶晶,席党鹏,于涛,万晓樵
摘要(Abstract)：
对松辽盆地青山口地区后金沟剖面进行化石的系统采样、鉴定和分析,识别出了介形类Cypridea gunsu-linensis-Cypridea ardua和Ilyocyprimorpha netchaevae-Periacanthella portentosa-Cypridea ordinata组合,孢粉Proteacidites-Cyathidites-Dictyotriteles和Lythraites-Aquilapollenites-Schizaeoisporites组合。根据介形类、孢粉化石组合,结合叶肢介化石和岩性等资料,厘定了该剖面的层位,认为后金沟剖面属于嫩江组一段上部-二段下部。在生物地层研究的基础上,探讨了沉积时期的古生态、古环境、古气候分析。根据介形类化石的保存特征及丰度、分异度,并结合其他资料,推测在嫩江组一段-二段沉积过渡期发生了一次大规模的湖侵。伴随着湖侵,介形类经历了一个衰退、消亡、复苏的过程。根据对孢粉的分析,认为该沉积期总体属于湿润到半湿润的热带、亚热带气候,其中在嫩江组二段底部黑色页岩的沉积期显得气候更加湿热,向上开始逐渐变干凉。
关键词(KeyWords)： 介形类;孢粉;古环境;古气候;嫩江组;松辽盆地;黑龙江
基金项目(Foundation): 国家自然科学基金项目(No40472011,40672020);; 全国地层委员会“中国主要断代地层建阶研究”项目资助
作者(Author): 闫晶晶,席党鹏,于涛,万晓樵
参考文献(References)：
- 崔同翠.1986.松辽盆地白垩纪叶肢介化石.北京.石油工业出版社1—164
- 高瑞琪,赵传本,乔秀云,郑玉龙,闫凤云,万传彪.1999.松辽盆地白垩纪石油底层孢粉学.北京:地质出版社.1—331
- 古利明.1995.民和盆地早白垩世晚期的孢粉组合.植物学报,37(7):566—573
- 黄福堂,黄清华,陈春瑞.1998.松辽盆地中生代地质事件节律及圈层耦合.石油勘探与开发,25(5):86—89
- 黄清华,陈春瑞,王平在,韩敏欣,李星军,伍大庆.1998.松辽盆地晚白垩世生物演化与古湖泊缺氧事件.微体古生物学报,15(4):417—425
- 黄清华,郑玉龙,杨明杰,李星军,韩敏欣,陈春瑞.1999.松辽盆地白垩纪古气候研究.微体古生物学报,16(1):95—103
- 王璞?,刘万洙,单玄龙,边伟华,任延广,杜晓弟,万传彪,程日辉.2001.事件沉积:导论·实例·应用.吉林:吉林科学技术出版社.42—106
- 叶德泉,黄清华,张莹,陈春瑞,徐静慧,金学新,张艳芯.2002.松辽盆地白垩纪介型类生物地层学.北京:石油工业出版社.1—289
- 张立平,王东坡.1994.松辽盆地白垩纪古气候特征及其变化机制.岩相古地理,14(1):11—16
- 赵敏,周万富,姚华舟.2004.大庆长垣某井嫩江组二段底部物质组成特征及沉积环境分析.华南地质与矿产,(4):57—62
- Archangelsky S&Gamerro J C.1967.Spore and pollen type of theLower Cretaceous in Patagonia.Review Palaeobotany and Pal-ynology,1:211—217
- Burger D.1980Palynological studies in the Lower Cretaceous of theSurat Basin,Australia.Bulletin Australian Bureau of MineralResearch,189:1—106
- Cui Tong-cui.1986.Cretaceous conchostracans from Songliao Ba-sin.Beijing:The PetroleumIndustry Press.1—164
- Gao Rui-qi,Zhao Chuan-ben,Qiao Xiu-yun,Zheng Yu-long,YanFeng-yun&Wan Chuan-biao.1999.Cretaceous oil strata paly-nology fromSongliao Basin.Beijing:The Geological PublishingHouse.1—331
- Gu Li-ming.1995.Sporo-pollen assemblages fromlate phase of ear-ly Cretaceous in Minhe Basin.Acta Botanica Sinica,37(7):566—573
- Huang Fu-tang,Huang Qing-hua&Chen Chun-rui.1998.Mesozo-ic geological events,rhythms and interaction of different earthspheres in the Songliao Basin.Petroleum Exploration and De-velopment,25(5):86—89
- Huang Qing-hua,Chen Chun-rui,Wang Ping-zai,Han Min-xin,LiXing-jun&Wu Da-qing.1998The Late Cretaceous bio-evolu-tion and anoxic events in the ancient lake in the Songliao Basin.Acta Micropalaeontologica Sinica,15(4):417—425
- Huang Qing-hua,Zheng Yu-long,Yang Ming-jie,Li Xing-jun,HanMin-xin&Chen Chun-rui.1999.On Cretaceous paleocli matein the Songliao Basin.Acta Micropalaeontologica Sinica,16(1):95—103
- Wang Pu-jun,Liu Wan-zhu,Shan Xuan-long,Bian Wei-hua,RenYan-guang,Du Xiao-di,Wan Chuan-biao&Cheng Ri-hui.2001.Depositional events:introduction,example,application.Changchun:Jilin Science and Technology Press.42—106
- Ye De-quan,Huang Qing-hua,Zhang Ying,Chen Chun-rui,XuJing-hui,Jin Xue-xin&Zhang Yan-xin.2002.Cretaceous os-tracoda biostratigraphy in Songliao Basin.Beijing:PetroleumIndustry Press.1—289
- Zhang Li-ping&Wang Dong-po.1994.Palaeocli matic characteris-tics and the mechanismfor cli matic changes in the Songliao Ba-sin during the Cretaceous.Sedi mentary Facies and Palaeo-geography,14(1):11—16
- Zhao Min,Zhou Wan-fu&Yao Hua-zhou.2004.Material compo-nents and sedi mentary environment analysis of the Second Mem-ber of Nenjiang Formation in Changyuan,Daqing.Geology andMineral Resources of South China,(4):57—62