地震工程学报2017，Vol.39Issue(3)：521-526,544,7.DOI:10.3969/j.issn.1013-0019.2017.03.0521
大规模GPS揭示中国现今地壳构造形变特征
Present-day Crustal Tectonic Deformation Characteristics of China Inferred from Large-scale GPS
摘要
Abstract
This paper calculated the tectonic deformation characteristics of mainland China and the characteristics of the strain field in the plate space distribution, using more than 260 continuous CMONOC sites and more than 2,000 area stations, that are the latest observation data.According to the intensive, wide range of GPS velocity field shows strong east and west weak trends from the entire velocity field in mainland China.The maximum velocity appeared in the Himalayan region, with a general rate between 35 and 42 mm/a.The Sichuan-Yunnan region dextral shear zone formed by the deformation characteristics of the most striking that the southwest of the minimum rate is between 3 to 9 mm/a, north of maximum rate in 17~23 mm/a.It can be seen from the spatial distribution that the largest strain-stress are mainly from the following regions: Himalayan, Kunlun Mountains, Sichuan and the Yunnan areas of fresh water river fault zone, Tianshan region, and Beijing-Tianjin area.The strain rate of the east coast shows tension that is mainly due to the earthquake in Japan in 2011, although the influence of the region has not completely subsided.关键词
GPS/速度场/应变场/构造形变Key words
GPS/velocity field/strain field/tectonic deformation分类
天文与地球科学引用本文复制引用
王东振,赵斌,余建胜,谭凯..大规模GPS揭示中国现今地壳构造形变特征[J].地震工程学报,2017,39(3):521-526,544,7.基金项目
中国地震局地震研究所所长基金(IS201526244) （IS201526244）
地震行业科研专项(201308009) （201308009）
