Seismic anisitrope stiuctose intesel from surface Lurue data braval busul portasle allay.

来自地表 Lurue 数据的地震各向异性结构整体。

• 批准号: 06640541
• 负责人: KANESHIMA Satoshi
• 金额: $ 1.28万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1994
• 资助国家: 日本
• 起止时间: 1994 至 1995
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-06640541/
• 关键词: broud band seisirometer; portable array obseraction; seismic surface wave; shear wave relotity; Aso caldera; valcanic temor; hetorogensity; aniso trapy; S波; 実体波; 変換波; S波速度異方性; 広帯域地震計ネットワーク; 短周期表面波; 位相速度の分散

Portable broud band seismometers are deployed as a small-apertore network at Mt.Aso, central Kyushu, Japan.in 1994. The aperture sife is 10km-20km and the network is mado up with 10 to 12 broud band seismometers. It recorded a nomser at local and regioral earthquakes, as woll as ionsperiod volconic tremors. We extracted Poyleish wave phase velocity across the network by measuring ditlererences in Foutier proses between two stations of the network The phase velelity at the soorthan hurf of the Aso caldeta is estimated take 2.5-2.7km/s at pariods around 20sei.The phase velolity meusurements are mist reliobly parfoemed in the periods from 10 to 30 sec, and show sistential scafter ever for ray patrs Sompling similur area.It may represa-t heterogeneity at the crast of the Aso caldeta, as well as anifstropy, The volcanic toremers, on the otrer hand, provius worth spectocelur interplax with hydro thomal system Lelow Mt.Aso crater and the corduit woter lake system at to time of phreatic eruptions.

便携式宽带地震仪作为小口径网络部署在九州中部的阿索山，Japan.in 1994。孔径为10 ~ 20 km，用10 ~ 12个宽带地震计组成台网。它记录了当地和区域地震的记录，以及离子周期火山震动。本文通过测量台网两站间傅氏波的双折射率，提取了波义利什波的相速度。估计了阿索破盖层的短弧处的相速度在20秒左右为2.5-2.7km/s。这可能反映了阿索破火山口的地壳不均匀性和各向异性。在潜水喷发时，与水热系统Lelow Mt.阿索火山口和Corduit Woter湖系统的交互作用是值得注意的。

项目成果

S.Kaneshima and P.G.Silver: "Anisotropic Loci in the mantal beneath lentral Peru" Physics of the Earth and Planetary Interiors. (印刷中). (1995)

S.Kaneshima 和 P.G.Silver：“秘鲁南面地幔中的各向异性轨迹”，地球和行星内部物理学（1995 年出版）。

S.Kaneshima PG.Silver: "Anisotropic loci in the mentle bereth cential pear" Physics of the Earth & Planatary Interiors. 88. 257-272 (1995)

S.Kaneshima PG.Silver：“地心各向异性轨迹” 地球物理

S.Kaneshima et al: "Mechanism of phreatic euptions at As volcano intores from mear-field broad bord seismic osseuations" Science. 273. 642-645 (1996)

S.Kaneshima 等人：“来自近场宽幅地震骨化的 As 火山喷发机制”《科学》。

C.Meado, P.G.Silver, S.Kaneshima: "Lubortory and Seismological osservntions of lower mantle isotropy" Gcephysical Research Letters. 22. 1243-1296 (1995)

C.Meado、P.G.Silver、S.Kaneshima：“下地幔各向同性的润滑和地震学观察”Gcephysical Research Letters。

C.Meade, P.G.Silver, Sikaneshima: "Laboratory and Seisnological observations of lower mantle isotropy" Geophysical Research letters. Vol.22. 1293-1296 (1995)

C.Meade、P.G.Silver、Sikaneshima：“下地幔各向同性的实验室和地震学观察”地球物理研究快报。