Small subsidence of the 660-km discontinuity beneath Japan probed by ScS reverberations

Kato M.; Kawakatsu H.; Misawa M.

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Small subsidence of the 660-km discontinuity beneath Japan probed by ScS reverberations

机译：ScS混响探测到日本下方660公里不连续处的小沉降

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We investigate layering structure in the mantle beneath Japan using ScS reverberation waveforms of two recent large deep events in the northwest Pacific. We estimate regional variation of the elastic and anelastic structure of the mantle as well as properties of the major velocity discontinuities by modeling broadband seismograms recorded at two dense networks, J-Array and FREESIA. The 660-km discontinuity is the deepest in the region where the stagnant subducting slab in the transition zone is tomographically imaged, but the subsidence is of similar to 10 km, much smaller than previous estimates with SS precursors. No significant elevation is detected for the 410-km discontinuity. [References: 19]

机译：我们使用西北太平洋最近发生的两次大型深部事件的ScS混响波形，调查了日本下方地幔的分层结构。通过对在两个密集网络J阵列和FREESIA上记录的宽带地震图进行建模，我们估计了地幔的弹性和非弹性结构的区域变化以及主要速度不连续性的特征。 660 km的不连续性是在断层摄影中对断层俯冲板片进行层析成像的区域中最深的，但沉降约为10 km，比先前使用SS前体的估计要小得多。对于410公里不连续点，未检测到明显的海拔高度。 [参考：19]

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《Geophysical Research Letters》 |2001年第3期|共4页
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Kato M.; Kawakatsu H.; Misawa M.;
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1. Small subsidence of the 660-km discontinuity beneath Japan probed by ScS reverberations [J] . Kato M., Kawakatsu H., Misawa M. Geophysical Research Letters . 2001,第3期

机译：ScS混响探测到日本下方660公里不连续处的小沉降
2. Discordant contrasts of P- and S-wave speeds across the 660-km discontinuity beneath Tibet: A case for hydrous remnant of sub-continental lithosphere [J] . Tseng TL, Chen WP Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System . 2008,第3a4期

机译：西藏以下660公里间断处P波和S波速度的反差：亚大陆岩石圈含水残余物的案例
3. Discordant contrasts of P- and S-wave speeds across the 660-km discontinuity beneath Tibet: A case for hydrous remnant of sub-continental lithosphere [J] . Tseng TL, Chen WP Earth and Planetary Science Letters: A Letter Journal Devoted to the Development in Time of the Earth and Planetary System . 2008,第3a4期

机译：西藏以下660公里间断处P波和S波速度的反差：亚大陆岩石圈含水残余物的案例
4. Hydraulic behavior of subsidence-induced surface discontinuities in the hydrogeology of the Aguascalientes valley [C] . Lilia Guerrero-Martínez, Martin Hernández-Marín, ángel Eduardo Mu?oz-Zavala International Symposium on Land Subsidence . 2021

机译：Aguascalientes山谷水文地质中沉降诱导的表面不连续性的水力行为
5. The Earth's upper mantle: Its structure beneath North America and the 660-km discontinuity beneath northern Europe. [D] . van der Lee, Suzan Frederike Maria. 1996

机译：地球的上地幔：其在北美下方的结构以及在北欧下方的660公里间断处。
6. Complete agreement of the post-spinel transition with the 660-km seismic discontinuity [O] . Takayuki Ishii, Rong Huang, Hongzhan Fei, -1

机译：脊柱后过渡与660公里地震不连续性完全一致
7. Mapping of the 410- and 660-km discontinuities beneath the Japanese islands [O] . 東野陽子, Kunugi. T, 深尾良夫, 2005

机译：在日本群岛下方的410和660公里间断处的地图

Small subsidence of the 660-km discontinuity beneath Japan probed by ScS reverberations

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