Practical applications of the continuum concept for deformation of solids and fluids, emphasizing force balance. Stress tensor, infinitesimal and finite strain, and rotation tensors developed. Constitutive relations applicable to geological materials, including elastic, viscous, brittle, and plastic deformation. Solutions to classical problems in geodynamics.
Practical applications of the continuum concept for deformation of solids and fluids, emphasizing force balance. Stress tensor, infinitesimal and finite strain, and rotation tensors developed. Constitutive relations applicable to geological materials, including elastic, viscous, brittle, and plastic deformation. Solutions to classical problems in geodynamics.
Mechanics of deformation of the crust and mantle, with emphasis on the importance of different rheological descriptions: brittle, elastic, linear and nonlinear fluids, and viscoelastic.
This course deals with mechanics of deformation of the crust and mantle, with emphasis on the importance of different rheological descriptions: brittle, elastic, linear and nonlinear fluids, and viscoelastic.
This course deals with mechanics of deformation of the crust and mantle, with emphasis on the importance of different rheological descriptions: brittle, elastic, linear and nonlinear fluids, and viscoelastic.
This course deals with mechanics of deformation of the crust and mantle, with emphasis on the importance of different rheological descriptions: brittle, elastic, linear and nonlinear fluids, and viscoelastic.
The Earth's crust is primarily composed of melting products from mantle plumes and mid-ocean ridges - both presently and over the course of Earth history. While both systems represent upwelling features in a convective mantle, they can be viewed as end-member systems in that plumes represent buoyant flow whereas mid-ocean ridges represent passive corner flow. This paradigm is not strict - flow beneath ridges may be buoyant in some places, for example, but it does provide a reasonable framework for enquiry. Plumes and ridges can be studied independently, but in many places across the globe the systems interact, often in intriguing fashion. The nature of these interactions provides an opportunity to improve our understanding of both systems, and provides new perspectives on the mantle, crustal, and water column processes associated converting heat from the Earth's interior into new crust, hydrothermal flow, and biological communities on the seafloor. The approach taken for the 2001 Plume-Ridge Interactions Seminar series was to start with basic ideas about mantle convection and tectonics, and an overview of the global hotspot and ridge systems. We then addressed three case studies of plume-ridge interactions in detail. Our first case was the interaction of the. Each of these systems provides a different perspective on the nature of plume-ridge interactions, and by comparison and contrast we are able to distill the fundamental aspects out of the complex array of geophysical and geochemical data associated with plume-ridge systems.
This course discusses phase transitions in Earth's interior. Phase transitions in Earth materials at high pressures and temperatures cause the seismic discontinuities and affect the convections in the Earth's interior. On the other hand, they enable us to constrain temperature and chemical compositions in the Earth's interior. However, among many known phase transitions in mineral physics, only a few have been investigated in seismology and geodynamics. This course reviews important papers about phase transitions in mantle and core materials.
Principles of thermodynamics are used to infer the physical conditions of formation and modification of igneous and metamorphic rocks. Includes phase equilibria of homogeneous and heterogeneous systems and thermodynamic modeling of non-ideal crystalline solutions. Surveys the processes that lead to the formation of metamorphic and igneous rocks in the major tectonic environments in the Earth's crust and mantle.
Principles of thermodynamics are used to infer the physical conditions of formation and modification of igneous and metamorphic rocks. Includes phase equilibria of homogeneous and heterogeneous systems and thermodynamic modelling of non-ideal crystalline solutions. Surveys the processes that lead to the formation of metamorphic and igneous rocks in the major tectonic environments in the Earth's crust and mantle.
Students learn about the causes, composition and types of volcanoes. They begin with an overview of the Earth's interior and how volcanoes form. Once students know about how a volcano functions, they learn how engineers predict eruptions. In a class demonstration, students watch and measure a mock volcanic eruption and observe the phases of an eruption, seeing how a volcano gets its shape and provides us with clues to predict a blast.
Subject:
Mathematics and Statistics, Science and Technology
This interactive feature story is part of Science Bulletins, an innovative online and exhibition program that offers the public a window into the excitement of scientific discovery. Published in June 2006, this Earth Bulletin looks at the geologic history of Yellowstone National Park. It includes the following components: Three online essays - Yellowstone National Park Is a Volcano, Signs of Restlessness, and Volcanic Witness; An Interview with Bob Smith -- each available in a print-friendly format; An seven-minute feature video, Yellowstone: Monitoring the Fire Below, available in two download speeds; An interactive that demonstrates how a volcano's shape depends on the type of magma that erupts;An interactive that looks at how Yellowstone's caldera has shifted over time;An 1871 map of Yellowstone's features; A pop-up glossary of terms used in this Earth Bulletin.
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