|
|||||
|
|
| USArray及其近期科学发现 | |
| 引用本文： | 李秋生,陈凌,王良书,吴庆举,刘宏兵,张忠杰,赵俊猛,史大年,贺日政.USArray及其近期科学发现[J].地质学报,2010,84(6):847-853. |
| 作者姓名： | 李秋生 陈凌 王良书 吴庆举 刘宏兵 张忠杰 赵俊猛 史大年 贺日政 |
| 作者单位： | 1. 中国地质科学院地质研究所,北京,100037 2. 中国科学院地质与地球物理研究所,北京,100029 3. 南京大学,210093 4. 中国地震局地球物理研究所,北京,100081 5. 中国科学院青藏高原研究所,北京,100085 6. 中国地质科学院矿产资源所,北京,100037 |
| 基金项目： | 国家自然科学基金项目(编号40830316、40874045)国家专项"深部探测技术与实验研究"，国土资源部公益性行业基金(编号200811021)联合资助成果 |
| 摘 要： | 美国台阵(USArray)是EarthScope计划的主要内容之一。旨在探测北美大陆变形、结构及其演化。USArray主要由平移/滚动台阵和机动台阵两部分构成。滚动台阵由400个宽频带地震台站组成,以向前滚动的方式扫过美国本土和阿拉斯加。利用来自该台阵的数据,科学家能获得地球内部精细图像,藉此考察地震和火山的过程。作为滚动台阵的补充,机动台阵被用于对关键目标进行详细观测和短期测量。美国台阵计划启动5年来,采集的数据已经提供了足以令科学界考虑重新审视地震物理、火山过程、核幔结构、活动变形构造、大陆结构及其演化、地球动力学和地壳流体等基本科学问题的基础资料。 |
| 关 键 词： | 美国台阵 科学发现 西北美洲大陆 莫霍面 岩石圈/软流圈边界 岩石圈拆沉 背景噪声成像 |
| 收稿时间： | 2010/4/14 0:00:00 |
| 修稿时间： | 5/9/2010 12:00:00 AM |
USArray and Latest Scientific Discoveries |
|
| LI Qiushneg,CHEN Ling,WANG Liangshu,WU Qingju,LIU Hongbing,ZHANG Zhongjie,ZHAO Junmeng,SHI Danian and HE Rizheng.USArray and Latest Scientific Discoveries[J].Acta Geologica Sinica,2010,84(6):847-853. | |
| Authors: | LI Qiushneg CHEN Ling WANG Liangshu WU Qingju LIU Hongbing ZHANG Zhongjie ZHAO Junmeng SHI Danian and HE Rizheng |
| Institution: | LI Qiushneg1),CHEN Ling2),WANG Liangshu3),WU Qingju4),LIU Hongbing5),ZHANG Zhongjie2),ZHAO Junmeng5),SHI Danian6),HE Rizheng1)1) Insititute of Geology,CAGS,Beijing,100037,2) Institute Geology and Geophysics,CAS,100029,3) Nanjing University,Nanjing,210093,4) Institute of Geophysics,CEA,100081,5) Institute of Tibetan Plateau Research,100085,6) Institute of Mineral Resources |
| Abstract: | USArray is one key component of EarthScope experiment to explore the formation, structure and evolution of the North American continent. The most important element of the USArray is Transportable and Flexible Array. The transportable Array consists of 400 broadband seismic stations installed across the continental United States and Alaska in a roll-along fashion. With data from this dense network of seismometers, researchers will be able to collect detailed images of the Earth's interior and investigate the processes controlling earthquakes and volcanoes. As the complement of Transportable Array, Flexible Array is available to scientists for dispatching to targeted areas for very detailed and short period studies. During the 5 years since it was started, the data acquired by USArray sensors have been providing the anticipated foundation for scientific community actively gaining new insights into earthquake physics, volcanic processes, core-mantle interactions, active deformation and tectonics, continental structure and evolution, geodynamics, and crustal fluids. |
| Keywords: | USArray scientific discoveries western North America continent Moho lithosphere-asthenosphere boundary lithospheric drip ambient noise tomography |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
| 点击此处可从《地质学报》浏览原始摘要信息 | |
| 点击此处可从《地质学报》下载免费的PDF全文 | |