宋成骅, 许才军, 刘经南, 蔡宏翔. 青藏高原块体相对运动模型的GPS方法确定与分析[J]. 武汉大学学报 ( 信息科学版), 1998, 23(1): 21-25.
引用本文: 宋成骅, 许才军, 刘经南, 蔡宏翔. 青藏高原块体相对运动模型的GPS方法确定与分析[J]. 武汉大学学报 ( 信息科学版), 1998, 23(1): 21-25.
Song Chenghua, Xu Caijun, Liu Jingnan, Cai Hongxiang. The Determination and Analyses of the Kenematic Model of Relative Motion Between Blocks in the Qinghai Tibet Plateau by GPS Measurements[J]. Geomatics and Information Science of Wuhan University, 1998, 23(1): 21-25.
Citation: Song Chenghua, Xu Caijun, Liu Jingnan, Cai Hongxiang. The Determination and Analyses of the Kenematic Model of Relative Motion Between Blocks in the Qinghai Tibet Plateau by GPS Measurements[J]. Geomatics and Information Science of Wuhan University, 1998, 23(1): 21-25.

青藏高原块体相对运动模型的GPS方法确定与分析

The Determination and Analyses of the Kenematic Model of Relative Motion Between Blocks in the Qinghai Tibet Plateau by GPS Measurements

  • 摘要: 利用武汉测绘科技大学在1993年、1995年观测的两期GPS资料,具体分析了青藏高原各块体相对运动情况。目前青藏高原大约以33.4mm/a,N30°E方向向西伯利亚运动,其中巴颜喀拉块体、羌塘块体、拉萨-冈底斯块体和喜马拉雅块体大约分别以17.3mm/a±3.1mm/a,N35°E;25.7mm/a±5.1mm/a,N33°E;38.9mm/a±6.1mm/a,N29°E;46.0mm/a±6.2mm/a,N27°E方向朝西伯利亚运动,而西藏块体大约以28.5mm/a±5.0mm/a速率,N31°E方向朝西伯利亚运动,这些结果与地质结果符合。文中还给出了各块体相对运动的欧拉向量。

     

    Abstract: Space geodesy provides an efficient technique to determine contemporary crustal deformations.At present,GPS is one of the best methods to study the crustal movements in the Qinghai Tibet plateau.Two GPS campaigns were carried out in this area in 1993 and 1995 by Wuhan Technical University of Surveying and Mapping.The GPS measurements show that the Qinghai Tibet plateau moves at about 33.4mm/a to Siberia northeastward at present,which is in agreement with the kinematic model derived from geological evidence.It can also be deduced that the motion rate and azimuth of Bayan Har terrane,Qiangtang block,Lhasa Gangdise block and Himalayan block are about 17.3mm/a,N35°E;25.7mm/a,N33°E;38.9mm/a,N29°E;46.0mm/,N27°E relative to Siberian block(Siberia) respectively.

     

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