| 基于最小二乘配置模型探讨青藏高原巴彦喀拉块体的运动特征 |
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| 引用本文： | 张贵钢,杨志强,王庆良,刘同文.基于最小二乘配置模型探讨青藏高原巴彦喀拉块体的运动特征[J].地球科学与环境学报,2011,33(2):213-216. |
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| 作者姓名： | 张贵钢 杨志强 王庆良 刘同文 |
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| 作者单位： | 1. 长安大学地质工程与测绘学院,陕西西安,710054
2. 中国地震局第二监测中心,陕西西安,710054 |
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| 基金项目： | 国家自然科学基金项目(40974062); 中国地震局地震行业科研重点专项项目(200908029); 教育部博士点基金项目(20060710003) |
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| 摘 要： | 论述了块体刚性运动和最小二乘配置模型的原理及构建方法,并对青藏高原中部巴彦喀拉块体的运动趋势及内部形变进行了深入研究.基于最小二乘配置模型,通过建立推估点与观测点间的协方差矩阵,能够较好地区分块体整体刚性旋转及内部的弹性形变,削弱了点位分布对形变场构建产生的影响,从而准确描述区域地壳运动的趋势及应变场特征.结果表明:巴...
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| 关 键 词： | 最小二乘配置模型 板块运动 巴彦喀拉块体 龙门山断裂带 欧拉矢量 应变场 青藏高原 |
Study on Movement Characteristic of Bayanhar Block in the Qinghai-Tibet Plateau Based on Least Squares Collocation Model |
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| ZHANG Gui-gang,YANG Zhi-qiang,WANG Qing-liang,LIU Tong-wen.Study on Movement Characteristic of Bayanhar Block in the Qinghai-Tibet Plateau Based on Least Squares Collocation Model[J].Journal of Earth Sciences and Environment,2011,33(2):213-216. |
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| Authors: | ZHANG Gui-gang YANG Zhi-qiang WANG Qing-liang LIU Tong-wen |
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| Institution: | ZHANG Gui-gang1,YANG Zhi-qiang1,WANG Qing-liang2,LIU Tong-wen1(1.School of Geological Engineering and Surveying,Chang'an University,Xi' an 710054,Shaanxi,China,2.The Second Crust Monitoring and Application Center,China Earthquake Administration,Xi'an 710054,China) |
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| Abstract: | The principle and structure method of block rigid movement and least squares collocation model were introduced,and the movement tendency and interior deformation of Bayanhar Block in the Qinghai-Tibet Plateau were discussed.Based on least squares collocation model,covariance matrixes between collocation points and measurement points were established to discriminate the rigid rotation and elastic deformation of the block,and weaken the influence of point distribution on constructing deformation field,so that... |
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| Keywords: | least squares collocation model block movement Bayanhar Block Longmenshan fault zone Euler vector strain field the Qinghai-Tibet Plateau |
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