| 四川龙门山中段早埃姆斯期生态地层及古环境新认识 |
| |
| 引用本文： | 赵兵,苟宗海,吴山.四川龙门山中段早埃姆斯期生态地层及古环境新认识[J].沉积与特提斯地质,1999,19(6):29-36. |
| |
| 作者姓名： | 赵兵 苟宗海 吴山 |
| |
| 作者单位： | 成都理工学院地质学系, 四川 成都 610059 |
| |
| 摘 要： | 本文讨论了龙门山中段白石－苟家大型飞来峰内早埃姆期期的甘溪组分及岩性特征。首次将甘溪组划分为两个生态地层单元，用Ａｎｅｔｏｃｅｒａｓ－Ｐｌｅｃｔｏｄｏｂｏｎｔａ群落及Ｄｉｃｏｅｌｓｔｒｏｐｈｉａ－Ｅｏｓｏｐｈｒａｇｍｏｐｈｏｒａ群落；指定了群落的层型剖面，分析了各群落的生物组成，丰富度，生态特征及生态环境。
|
| 关 键 词： | 龙门山 早埃姆斯期 生态地层 生态环境 古环境 |
| 收稿时间： | 1999/6/8 0:00:00 |
Ecostratigraphy and paiaeoenvironments in central Longmen Mountains,Sichuan during the early Emsian |
| |
| ZHAO Bing,GOU Zong-hai,WU Shan.Ecostratigraphy and paiaeoenvironments in central Longmen Mountains,Sichuan during the early Emsian[J].Sedimentary Geology and Tethyan Geology,1999,19(6):29-36. |
| |
| Authors: | ZHAO Bing GOU Zong-hai WU Shan |
| |
| Institution: | Department of Geology, Chengdu University of Technology, Chengdu 610059, China |
| |
| Abstract: | The stratigraphy and lithology are discussed for the early Emsian Ganxi Formation within the Baishi-Goujia klippe in central Longmen Mountains,Sichuan.Two ecostratigraphic units including the Anetoceras-Plectodonta community and Dicoelostrophia-Eosophragmophora community have been identified for the Ganxi Formation for the first time.The emphasis is placed on stratotype section,biology,abundance,ecology,living styles and habits of individual communities.The results of research show that the study area may be assigned to deep-water shelf to deep-water basin environments during the early Emsian.This new explanation has provided new evidences for the interpretation of the nature and evolution of the Devonian sedimentary basins in the Longmen Mountain area. |
| |
| Keywords: | central Longmen Mountains Baishi-Goujia klippe early Emsian ecostratigraphy community ecological environment |
| 本文献已被 维普 等数据库收录！ |
| 点击此处可从《沉积与特提斯地质》浏览原始摘要信息 |
| 点击此处可从《沉积与特提斯地质》下载免费的PDF全文 |
|
