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| 松辽盆地新站地区嫩江组三段孢粉-藻类组合及其环境 | |
| 引用本文： | 田梦,张梅生,任延广,乔秀云,万传彪,刘鹏举.松辽盆地新站地区嫩江组三段孢粉-藻类组合及其环境[J].吉林大学学报(地球科学版),2005,35(4):449-455. |
| 作者姓名： | 田梦 张梅生 任延广 乔秀云 万传彪 刘鹏举 |
| 作者单位： | 1. 吉林大学,地球科学学院,吉林,长春,130026;大庆石油管理局,大庆物探公司,黑龙江,大庆,163357 2. 吉林大学,地球科学学院,吉林,长春,130026 3. 大庆油田有限责任公司,勘探开发研究院,黑龙江,大庆,163712 4. 吉林大学,地球科学学院,吉林,长春,130026;大庆油田有限责任公司,勘探开发研究院,黑龙江,大庆,163712 |
| 摘 要： | 依据松辽盆地西南部新站地区嫩江组三段孢粉和藻类化石百分含量纵向变化特征,自下而上划分7个能识别水体盐度变化的孢粉和藻类组合:Cyathidites-Pinus pollenites-Dinog ymnio psis组合,指示缩小的微咸水湖相沉积环境;Dinogymniopsis-Leiosphaeridia-Pinus pollenites组合,代表水域扩大的微咸水湖相沉积环境;Cicatricosis porites-Pinus pollenites-Botryococcus组合,代表水域缩小的淡水-微咸水湖相沉积环境;Dinog ymnio psis-Chlamydophorella-Taxodiaceaepollenites组合,反映淡水与微咸水频繁交互变化的浅湖相沉积环境;Cicatricosisporites-Pinuspollenites-Pediastrum组合,代表水域缩小的淡水湖相沉积环境;Nenj iangella-Balmula-Cyathidites组合,代表水域范围较大的淡水湖相沉积环境;Cyathidites-Trilobosporites-Botryococcus组合,指示水域缩小的微咸水湖相沉积环境. |
| 关 键 词： | 孢粉 沟鞭藻 环境 嫩江组 新站地区 松辽盆地 松辽盆地 地区 嫩江组 孢粉 藻类化石 组合 沉积环境 Songliao Basin Area Formation Member 范围 浅湖相 盐度变化 微咸水 水域 代表 咸水湖相 水体 识别 |
| 文章编号： | 1671-5888（2005）04-0449-07 |
| 收稿时间： | 2004-09-05 |
| 修稿时间： | 2004年9月5日 |
On the Sporopollen-Alga Assemblages and Environments from the Third Member of Nenjiang Formation in the Xinzhan Area of Songliao Basin |
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| TIAN Meng,Zhang Mei-sheng,REN Yan-guang,QIAO Xiu-yun,WAN Chuan-biao,LIU Peng-ju.On the Sporopollen-Alga Assemblages and Environments from the Third Member of Nenjiang Formation in the Xinzhan Area of Songliao Basin[J].Journal of Jilin Unviersity:Earth Science Edition,2005,35(4):449-455. | |
| Authors: | TIAN Meng Zhang Mei-sheng REN Yan-guang QIAO Xiu-yun WAN Chuan-biao LIU Peng-ju |
| Abstract: | The Third Member of Nenjiang Formation is located in the Xinzhan area, the southwestern part of Songliao basin. According to the changes of sporopollen-alga assemblages from bottom to top,seven sporopollen-alga assemblages were recongnized for the Third Member of Nenjiang Formation,which can indicate the salinity changes of water body of the take. They are (in ascendling order):Cyathidites-Pinuspollenites-Dinogymniopsis assemblage which indicates a brackish lake environment with a (shrinking) water body,Dinogymniopsis-Leiosphaeridia-Pinuspollenites assemblage which indicates a slightlysaltied lake environment with a enlarging water body,Cicatricosisporites-Pinuspollenites-Botryococcus assemblage which indicates a fresh-water to slightlysaltied lake environment with a shrinking water body,Dinogymniopsis-Chlamydophorella-Taxodiaceaepollenites assemblage which indicates a shallow lake environment transforming from fresh-water to brackish water frequently, Cicatricosisporites-Pinuspollenites-Pediastrum assemblage which indicates a fresh-water lake environment with a reducing water body,Nenjiangella-Balmula-Cyathidites assemblage which indicates a fresh-water lake environment with a broad water body,and Cyathidites-Trilobosporites-Botryococcus assemblage which indicates a brackish lake environment with a shrinking water body. |
| Keywords: | sporopollen dinoflagellates environments Nenjiang Formation Xinzhan areas Songliao basin |
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