【摘 要】
：
In this talk,I will use recent mineral physics results to address possible seismic and geochemical heterogeneities in the deep Earths interior.Based on seis
论文部分内容阅读
In this talk,I will use recent mineral physics results to address possible seismic and geochemical heterogeneities in the deep Earths interior.Based on seismic observations,Earths interior is made of a few distinct layers that are separated by distinct seismic discontinuities.Within these layers,however,there are much less seismic variations,but recent high-resolution seismic tomography has revealed seismic heterogeneities that suggest possible chemical and/or thermal heterogeneities in these layers.On the other hand,geochemical analysis of mantle peridotites,mid-ocean ridge basalts,and chondrites has indicated possible isotope fractionations within the deep Earth.
其他文献
The search for time-harmonic solutions of nonlinear Maxwell equations in the absence of charges and currents leads to the following equation {▽×(μ(x)-1▽
I will first present a result on the existence of non-trivial global minimizers of Allen-Cahn equation in dimension 8.Then I will discuss related issues on
In this talk I will discuss some problems related to solutions with polynomial growth of the following elliptic system △u = uv2,△v = vu2,u,v>0 in Rn: Usin
非常规能源勘探开发技术的发展,对高温、真空、泥浆润滑极端工况下具有低磨损、低摩擦性能的聚晶金刚石(Polycrystalline Diamond,PCD)材料提出了迫切要求。
The genetic mechanism of earthquakes still remains puzzling even though many genetic models of earthquakes have been proposed.More and more cryptoexplosive
超硬材料因其高强度、高硬度、高热导率、优良的耐磨性等性质被广泛应用于切削加工、耐磨涂层、研磨材料等机械加工领域，过渡金属硼化物作超硬材料的一个重要研究方向近年