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首页> 外文期刊>Earth, planets and space: EPS >Crust and uppermost mantle structure beneath central Japan inferred from receiver function analysis
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Crust and uppermost mantle structure beneath central Japan inferred from receiver function analysis

机译：从接收器功能分析推断日本中部以下的地壳和最上层地幔结构

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摘要

We apply the receiver function method to estimate the Structure of the crust and the uppermost mantle at an area that traverses central Japan including the Niigata-Kobe Tectonic Zone (NKTZ). The resultant receiver function images show clear seismic discontinuities, such as the subducting Philippine Sea plate, the Moho in the overriding plate, and other discontinuities inside the crust around the NKTZ. We also address station corrections for shallow structures using a synthetic receiver function. Crustal discontinuities seem to be complicated at the south side from the northern limit of the NKTZ. The dip of the discontinuities changes around the Atotsugawa active fault located in the NKTZ. The Moho discontinuity in the overriding plate is continuous and gradually dips to the south. The depths of the Moho discontinuity in the receiver function image exceed 40 km at the southern part of the profile line, and are 5-10 km deeper than that indicated by an explosion analysis of the same profile line. It seems that the differences between the estimated depths obtained by the two methods indicate complicated Structures around the Moho discontinuity.
机译：我们应用接收器函数方法估算了遍及日本中部包括新泻-神户构造带（NKTZ）的区域的地壳和最上层地幔的结构。所得的接收器功能图像显示出明显的地震不连续性，例如俯冲的菲律宾海板，上覆板块中的莫霍面以及NKTZ周围地壳内部的其他不连续性。我们还使用合成接收器功能解决了浅层结构的站校正问题。从NKTZ的北端到南侧，地壳间断似乎很复杂。不连续的倾角在位于NKTZ的Atotsugawa活动断层周围改变。上覆板块中的莫霍面不连续是连续的，并逐渐向南倾斜。接收器功能图像中Moho不连续的深度在轮廓线的南部超过40 km，并且比同一轮廓线的爆炸分析所指示的深度深5-10 km。似乎通过两种方法获得的估计深度之间的差异表明Moho间断面周围的结构复杂。

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