| 羌塘盆地胜利河地区雀莫错组地层及其古环境 |
| |
| 引用本文： | 付修根 王,剑 吴,滔 何江林.羌塘盆地胜利河地区雀莫错组地层及其古环境[J].中国地质,2010,37(5):1305-1312. |
| |
| 作者姓名： | 付修根 王 剑 吴 滔 何江林 |
| |
| 作者单位： | 成都地质矿产研究所;贵州省地质调查院; |
| |
| 基金项目： | 国家自然科学基金项目，四川省青年科技基金项目，国家油气专项项目 |
| |
| 摘 要： | 在羌塘盆地胜利河地区实测了多条雀莫错组地层剖面,在区块南部剖面中采集到大量的硅化木以及一定含量的双壳类Astarte delicata Fan,A.cf.voltzii Goldfuss,Pleuromya sp.,Protocardia sp.,Modiolus sp.,Neomiodon sp.,Chlamys sp.等和孢粉化石Cyathidites,Deltoidospora,Neoraistrickia,Classopollis等。雀莫错组地层之下广泛沉积了一套那底岗日组火山-火山碎屑沉积,其火山岩喷发年龄为205～220Ma。雀莫错组地层之上与中侏罗统布曲组整合接触,依据上述特征确定了雀莫错组地层的时代为早-中侏罗世。雀莫错组地层沉积早期,以冲积扇-辫状河砾岩沉积为特征,之上沉积了一套三角洲相碎屑岩地层及局限台地相灰岩沉积,表现为一个向上变深的海侵序列。雀莫错组沉积期,胜利河地区处于偏潮湿的热带-亚热带环境。
|
| 关 键 词： | 沉积环境 古气候 雀莫错组 羌塘盆地 |
Stratigraphy and paleoenvironment of the Quemo Co Formation in Shengli River area, northern Tibet |
| |
| FU Xiu-gen,WANG Jian,WU Tao,HE Jiang-lin.Stratigraphy and paleoenvironment of the Quemo Co Formation in Shengli River area, northern Tibet[J].Chinese Geology,2010,37(5):1305-1312. |
| |
| Authors: | FU Xiu-gen WANG Jian WU Tao HE Jiang-lin |
| |
| Institution: | FU Xiu-gen1,WANG Jian1,WU Tao2,HE Jiang-lin1(1.Chengdu Institute of Geology and Mineral Resources,Chengdu 610081,Sichuan,China,2.Guizhou Academy of Geological Survey,Guiyang 550004,Guizhou,China) |
| |
| Abstract: | Recently abundant silicified wood was discovered in the Quemo Co Formation along the Shengli River section in Shengli River area,northern Tibet.In addition,certain amounts of bivalves(e.g.,Astarte delicata Fan,A.cf.voltzii Goldfuss,Pleuromya sp.,Protocardia sp.,Modiolus sp.,Neomiodon sp.,and Chlamys sp.),spores and pollen grains(e.g.,Cyathidites,Deltoidospora,Neoraistrickia and Classopallis) were also found in this section.A detailed investigation along the section was performed to reconstruct the paleoenvi... |
| |
| Keywords: | sedimentary environment paleoclimate Quemo Co Formation Qiangtang basin |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《中国地质》浏览原始摘要信息 |
| 点击此处可从《中国地质》下载免费的PDF全文 |
|
