| 青藏高原东北缘第三纪构造-气候事件与环境变迁 |
| |
| 引用本文： | 顾延生,李长安,郭广猛,黄长生.青藏高原东北缘第三纪构造-气候事件与环境变迁[J].地质科技情报,2000,19(2):1-4. |
| |
| 作者姓名： | 顾延生 李长安 郭广猛 黄长生 |
| |
| 作者单位： | 1. 中国地质大学地球科学学院,湖北,武汉,430074
2. 江西地质调查院,江西,南昌,330201 |
| |
| 基金项目： | 甘肃省区域地质调查项目，， |
| |
| 摘 要： | 青藏高原东北缘处于青藏高原与黄土高原的交接部位，为环境变化敏感带。通过系统的沉积环境、构造运动与古气候演化的较高分辨率研究，划分了第三纪以构造－气候作用下的１７个沉积层序和古气候演化的七大阶段，将研究区的地质事件与同期的柴达木盆地干旱植物、珠江口和渤海湾海平面、大西洋海氧同位素演化阶段对比研究表明，区域重大地质事件具有可比性，同时具有很好的第三纪时期全球变化意义。
|
| 关 键 词： | 第三纪 环境变迁 构造－气候事件 青藏高原 |
TECTONIC-CLIMATIC EVENTS AND ENVIRONMENTAL CHANGE OF TERTIARY IN NORTHEASTERN MARGIN OF QINGHAI-XIZANG(TIBET) PLATEAU |
| |
| Gu Yansheng,Li Chang'an,Guo Guangmeng,Huang Changsheng.TECTONIC-CLIMATIC EVENTS AND ENVIRONMENTAL CHANGE OF TERTIARY IN NORTHEASTERN MARGIN OF QINGHAI-XIZANG(TIBET) PLATEAU[J].Geological Science and Technology Information,2000,19(2):1-4. |
| |
| Authors: | Gu Yansheng Li Chang'an Guo Guangmeng Huang Changsheng |
| |
| Abstract: | The study region lies on the boundary of the Qinghai-Xizang(Tibet) Plateau and the Loess-Plateau,which is sensitizing range of environmental changes since Tertiary.The system and relativly high-resolution research on sedimentary environment,tectonic movements and evolution of paleonclimate show that there exist 17 deposit sequences with tectonic and climate processing,and 7 stages of paleonclimate in the Tertiary.Correlation of geological events in the region with dry vegetation in the Qaidam Basin,sea level in the mouth of the Zhujiang River and Gulf of Bohai and stages of the oxygen-isotope records in deep sea of Atlantic Ocean demonstrates that there is a close relationship with regional geological events of tectonic-climate and great significance of the global change. |
| |
| Keywords: | Tertiary environmental change tectonic-climatic event |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
