| 成都盆地新生代大邑砾岩的沉积特征 |
| |
| 引用本文： | 王凤林,李勇,李永昭,王谋,张玉修. 成都盆地新生代大邑砾岩的沉积特征[J]. 成都理工大学学报(自然科学版), 2003, 30(2): 139-146 |
| |
| 作者姓名： | 王凤林 李勇 李永昭 王谋 张玉修 |
| |
| 作者单位： | 成都理工大学地球科学学院,成都,610059 |
| |
| 基金项目： | 国家自然科学基金 ( 4 980 2 5 0 1 3 4)，地质矿产部青年地质学家基金 ( Qn97981 6)资助项目 |
| |
| 摘 要： | 通过对龙门山前陆盆地大邑砾岩的发育层序、沉积特征及物源的分析，建立其垂向相序，总结出大邑砾岩的沉积具冲积扇相的特点；恢复大邑砾岩发育时期的古地貌，推断其至少由三个冲积扇组成：古岷江扇，古青衣江扇，古玉溪扇。同时，结合测年资料，指出大邑砾岩是上新世一早更新世的整合沉积相，有别于全球其他地区同期的不整合事件。大邑砾岩沉积之后，新构造运动活动强烈。
|
| 关 键 词： | 成都盆地 大邑砾岩 上新世一早更新世 冲积物 沉积特征 |
| 文章编号： | 1671-9727(2003)02-0139-08 |
| 修稿时间： | 2001-12-12 |
SEDMENTARY CHARACTERISTICS OF THE CENOZOIC DAYI CONGLOMERATE IN CHENGDU BASIN |
| |
| WANG Feng lin,LI Yong,LI Yong zhao,WANG Mou,ZHANG Yu xiu. SEDMENTARY CHARACTERISTICS OF THE CENOZOIC DAYI CONGLOMERATE IN CHENGDU BASIN[J]. Journal of Chengdu University of Technology: Sci & Technol Ed, 2003, 30(2): 139-146 |
| |
| Authors: | WANG Feng lin LI Yong LI Yong zhao WANG Mou ZHANG Yu xiu |
| |
| Abstract: | The Dayi conglomerate is deposited in the foreland basin located in the Longmen mountains of the Tibetan plateau. By analyzing the evolution, stratigraphic sequence development, lithology, sedimentary characteristics and material source in the Chengdu basin, this paper indicates that the Dayi conglomerate bears fluvial facies and alluvial fan sedimentary characteristics. It concludes that the Dayi conglomerate is composed of three main alluvial fans: the ancient Minjiang, Qingyijiang and Yuxi fans. After the Dayi conglomerate deposition, tectonic activities occured frequently. During the Pliocene Lower Pleistocene, the Dayi conglomerate was deposited continuously. It is different from the unconformities in the same time all of the world. |
| |
| Keywords: | Pliocene Lower Pleistocene Dayi conglomerate alluvial material sedimentary characteristics Chengdu basin |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
