| 基于精密水准的依兰-伊通断裂带北部地区垂直形变分析 |
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| 引用本文： | 邓董建,苏广利,许明元,畅 柳,徐佳垚.基于精密水准的依兰-伊通断裂带北部地区垂直形变分析[J].大地测量与地球动力学,2018,38(6):620-623. |
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| 作者姓名： | 邓董建 苏广利 许明元 畅 柳 徐佳垚 |
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| 摘 要： | 利用依兰-伊通断裂带北部地区1977年、1991年和2015年3期精密水准数据，采取伪逆基准下的线性动态运动模型进行平差，并归算到选取的基准点，分别获取该区域2期相对速率场（1977~1991年和1991~2015年）。前一期速率场表明，大致以依兰-伊通断裂带为界，该区域长白山北部相对于小兴安岭南段隆升，最大相对速率为7.51 mm/a；后一期速率场表明，整个依兰-伊通断裂带北部地区相对速率较小，最大相对速率仅为3.4 mm/a，该区域趋向于整体性的继承性运动，断裂带两侧相对运动明显减弱。
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| 关 键 词： | 精密水准 速率场 垂直运动 依兰-伊通断裂 |
Analysis of Vertical Deformation in the Northern Area of the Yilan-Yitong Fault Zone Based on Precise Leveling |
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| DENG Dongjian,SU Guangli,XU Mingyuan,CHANG Liu,XU Jiayao.Analysis of Vertical Deformation in the Northern Area of the Yilan-Yitong Fault Zone Based on Precise Leveling[J].Journal of Geodesy and Geodynamics,2018,38(6):620-623. |
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| Authors: | DENG Dongjian SU Guangli XU Mingyuan CHANG Liu XU Jiayao |
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| Abstract: | Using precise leveling data of the north of Yilan-Yitong fault zone in 1977, 1991 and 2015, we take the pseudo inverse linear dynamic movement model in the case of reference to carry on the adjustment, and reduce to the selected benchmark. We then obtain the two relative velocity fields in the region (1977-1991 and 1991-2015). The previous velocity field shows that roughly Yilang-Yitong fault zone is bounded, the north of Changbai mountain is a relatively uplifting movement compared to the southern section of Lesser Khingan Mountains, with a maximum relative rate of 7.51 mm/a. The second phase of the rate field indicates a relatively low speed of the northern region of the Yilan-Yitong fault zone, with a maximum relative rate of only 3.4 mm/a. The area tends towards a holistic approach to inheritance; the relative motion of the fault line decreases significantly. |
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| Keywords: | precise leveling velocity field vertical motion the Yilan-Yitong fault |
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