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Cari koleksi dengan cepat sesuai kebutuhan Anda.Mantle plumes as well as ‘superplumes’ have been imaged in the lower most mantle in tomographic studies. To investigate seismic resolution of deep mantle plume anomalies, we use a spectral element method (SEM) to simulate global seismic wave propagation in 3-D wave speed models and measure frequency-dependent P-, S-, Pdiff- and Sdiff-wave travel time anomalies caused by plume structures in …