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本文利用Burgers体流变模型分析石榴子石、橄榄石和超镁铁集合体形变,以获得瞬时弹性和粘性。所得结果表明:瞬时剪切模量约为均衡剪切模量的十分之一,而瞬时粘度为稳态粘度的0.5～0.7倍,这些值与以往的研究者所选择的与下地幔瞬时蠕变有关的Burgers体参数有很大的不同。瞬时粘性与稳态粘性具有相同的温度相关性,这种相关性导致瞬时弹性模
In this paper, Burgers bulk rheological model is used to analyze the deformation of garnet, olivine and ultramafic aggregate to obtain instantaneous elasticity and viscosity. The results show that the instantaneous shear modulus is about one tenth of the equilibrium shear modulus and the instantaneous viscosity is 0.5 ~ 0.7 times of the steady state viscosity. These values are in agreement with those selected by the previous researchers and the instantaneous creep of the lower mantle The Burgers body parameters vary greatly. The instantaneous viscosity has the same temperature dependency as the steady state viscosity, and this correlation results in a transient elastic modulus