Detection of Magma Chamber at Mt. Fuji, Japan

我们要求资金来拍摄山下面的地壳结构。富士，日本，以限制几何形状的岩浆储存系统和火山管道。 山富士山目前由日本合作者监测，拥有过去20年积累的大量地震数据集。 地震活动和活火山活动特别强烈的山。富士地区，提供了一个很好的数据集，数据覆盖面很广。 我们将讨论深与浅岩浆储存区的问题，在地壳中存在的部分熔体积累和几何形状的岩浆管道。 将利用已确立的三维地震成像方法，利用地震速度、衰减、各向异性和震源相关性等物理参数，对管道/岩浆储存区进行照明。 高分辨率的事件位置将限制岩浆储存区附近的岩浆输运模型。 流体动力学性质约束岩浆和气体流量的管道将使用非线性过程建模谐波震颤收缩流。 在Mt.以下观察到的深层低频事件。富士山将通过矩张量反演进行建模，以便与地震成像描绘的构造特征进行关联。 深部熔体的积累和输送是分析火山形成和演化的基础。活火山系统的结构分析为评估喷发动力学和减灾提供了框架。

We request funds to image crustal structure below Mt. Fuji, Japan, to constrain the geometry of the magma storage system and volcano plumbing. Mt. Fuji is currently being monitored by Japanese collaborators and has an extensive seismic data set accumulated over the last 20 years. Seismicity and active volcanism is particularly intense in the Mt. Fuji region, providing an excellent data set with ample data coverage. We will address the question of deep versus shallow magma storage regions, the presence of partial melt accumulation in the crust and the geometry of magma conduits. Established methods of three-dimensional seismic imaging will be used to illuminate the conduit/magma storage areas using physical parameters such as seismic velocity, attenuation, anisotropy and hypocenter correlation. High resolution event locations will constrain magma transport models near in the magma storage region. Fluid dynamical properties constraining magma and gas flux in the conduits will be modeled using non-linear processes relating harmonic tremor to constricted flow. Deep, low frequency events observed below Mt. Fuji will be modeled by moment tensor inversion for correlation to structural features delineated by seismic imaging.This proposal addresses issues of magma storage in subduction zone settings. Estimation of deep melt accumulation and transport is essential for analysis of volcano formation and evolution. Structural analysis of active volcanic systems provides the framework for assessment of eruption dynamics and hazard mitigation.