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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Crustal deformation in the Indo-Burmese arc region: implications from the Myanmar and Southeast Asia GPS measurements
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Crustal deformation in the Indo-Burmese arc region: implications from the Myanmar and Southeast Asia GPS measurements

机译：印缅弧区的地壳变形：缅甸和东南亚GPS测量的意义

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摘要

Several models of plate boundary and convergence between the Indian and South China plate across the Indo-Burmese arc (IBA) region have been proposed, which include active subduction, transform, oblique and no plate boundary. We theoretically computethe displacement fields corresponding to each model and compare them with the results of GPS measurements in Myanmar and Southeast Asia. Available GPS observations are consistent with the model in which relative plate motion of about 36 mm/yr between India and Sundaland is partitioned almost equally between the Sagaing fault and the IBA through episodic dextral motion. Eastward motion of the Indian plate is generally compensated by eastward motion of the South China plate. Thus almost no subduction occurs along the Indo-Burmese arc. The GPS data are consistent with strain accumulation in both regions.
机译：提出了印度洋-缅甸弧（IBA）区域印度板块和华南板块的板块边界和会聚模型，包括主动俯冲，变换，倾斜和无板块边界。我们从理论上计算与每个模型对应的位移场，并将它们与缅甸和东南亚的GPS测量结果进行比较。可用的GPS观测结果与该模型一致，在该模型中，印度和桑达兰之间的相对板块运动（约36毫米/年）通过情节性右旋运动在Sagaing断层和IBA之间几乎均分。印度板块的东移通常由华南板块的东移来补偿。因此，沿印缅弧线几乎没有俯冲发生。 GPS数据与两个区域的应变累积一致。

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