Volcano Plumbing System Simulation SEM-2D

The velocity and density models describe the magmatic plumbing system as developed by Melnik et al. Melnik, O. E., Utkin, I. S., & Bindeman, I. N. (2021). Magma chamber formation by dike accretion and crustal melting: 2D thermo-compositional model with emphasis on eruptions and implication for zircon records. Journal of Geophysical Research: Solid Earth, 126(12), e2021JB023008.. The model consists of 5 m grid elements and a free surface must be considered at the top. Seismograms Generated by Vertical and Horizontal Force Sources Seismograms are generated from sources expressed as vertical and horizontal forces. In the case of horizontal forces, the seismogram file is labeled with the suffix "_hor". Five sources are positioned at the surface at the following locations: x₁ = 6 km x₂ = 8 km x₃ = 12 km x₄ = 12.5 km x₅ = 17 km A total of 7,800 receivers are arranged in a regular grid with 100 m spacing, covering the range: x_min = 10 km, x_max = 16.5 km z_min = 2.5 km, z_max = 14.5 km The source function is a Ricker wavelet centered at 3 Hz.速度与密度模型刻画了由Melnik等人（Melnik, O. E., Utkin, I. S., & Bindeman, I. N.，2021）构建的岩浆管道系统。相关研究成果为《Magma chamber formation by dike accretion and crustal melting: 2D thermo-compositional model with emphasis on eruptions and implication for zircon records》，发表于《地球物理研究杂志：固体地球（Journal of Geophysical Research: Solid Earth）》126卷12期，文章编号e2021JB023008。该模型采用5米的网格单元，且顶部需考虑自由表面边界条件。 垂直与水平力源激发的地震记录 本数据集的地震记录由垂直力源与水平力源激发生成。对于水平力源，其对应的地震记录文件后缀标注为「_hor」。 共设置5个地表震源，位置分别为： x₁ = 6千米 x₂ = 8千米 x₃ = 12千米 x₄ = 12.5千米 x₅ = 17千米 共布设7800个接收器，以100米的间距构成规则网格，覆盖范围如下： x_min = 10千米，x_max = 16.5千米 z_min = 2.5千米，z_max = 14.5千米 震源子波为中心频率3赫兹的雷克子波（Ricker wavelet）。