Research Blog | Jonathan Perry-Houts
Jonathan Perry-Houts

    Anisotropic Viscosity

    I've been working a bit lately on fluid flow problems involving materials with anisotropic viscosities. That is, deforming such a material in one direction is easier than in another direction. An example of such a material in the real world is a sequence of rock layers with varying strengths. In simple shear along the layered plane the stronger ... Read more


    Lithospheric Delamination in the Western U.S.– Part IV: Delam Styles / Type Localities

    In my last post I tried to explain the fundamentals of delamination. I used a floating wooden board being weighed down by metal as an analogy for the state of the Earth’s lithosphere. In the Earth, the crust is buoyantly floating on top of the mantle and is being weighed down by cold mantle material stuck to its bottom. If the two materials were... Read more


    Lithospheric Delamination in the Western U.S.– Part III: Delamination

    In my last post I covered the basics of mantle dynamics and now I should be just about ready to dive in to the actual content of this series of posts: lithospheric delamination. I’ll start by just explaining the concept. In my next post in this series I’ll talk about type-localities in the western U.S. and some basics on the methods I use to stu... Read more


    Lithospheric Delamination in the Western U.S. – Part II: Mantle Dynamics

    In my last post I tried to do a quick overview of seismic tomography. The takeaway message being that it is possible, through seismology, to “see” structures inside the Earth. It’s how we know that the Earth has layers, for example. Other significant structures that we observe with seismic imaging are seismically fast (cold) regions beneath sub... Read more


    Lithospheric Delamination in the Western U.S. – Part I: Seismic Imaging

    I recently put together a poster about lithospheric delamination in the western U.S. for the CIDER workshop that’s coming up in Berkeley and I thought I’d share the content here too. I’d like to start with the basics to tell the whole story but it’s a long one so I’m gonna split this in to several installments. This first one is just going to f... Read more