Early Martian tectonic evolution: A study through geological and geophysical perspectives

我们的研究是以理解火星热损失机制为主题的。我们用ISALE-3D冲击物理程序模拟了Hellas大小的巨型撞击，并执行了撞击模拟，并将结果用于柱体中具有无限Prandtl数和温度相关粘性的流体的随时间变化的热对流。观察结果表明，在希腊及其周围地区，类似羽流的热梯度的产生具有重要的形态观测意义。我们还在全球范围内估计了火星皱纹的年龄，并观察到了以希腊时间为单位的全球压缩(Ruj和Kawai，提交给Icarus，月球研究为了了解月球的地幔演化，我们正在嫦娥四号着陆点(冯·卡曼陨石坑)的着陆点工作。我们已经准备了着陆点区域的地质图(将形态和矿物学考虑在内)，现在我们正在研究着陆点及其周围发现的火山物质的时间和类型。

Our research is themed to understand Martian heat loss mechanism.We mimicked Hellas size giant impact, using iSALE-3D shock physics code and executed impact simulations and used the results to a time-dependent thermal convection of a fluid with an infinite Prandtl number and a temperature-dependent viscosity under the Boussinesq approximation in a cylinder.Observed results indicate that the generation of thermal gradient, resembling plume and are significant in terms of the morphological observations, in and around the Hellas region.We also estimated the age of the wrinkle ridges of Mars on a global scale and we observed a global compression in Hesperian time (Ruj and Kawai, submitted to Icarus, under review).Research on MoonIn order to understand the mantle evolution of the Moon, we are working on the landing site of the Chang’E 4 landing site (Von Karman crater). We have prepared a geological map (taking morphology and mineralogy into count) of the landing site region, and now we are working on the timing and type of volcanic material found in and around the landing site.