Ciencias de la Tierra y Ciencias Ambientales relacionadasInglésGhost

Geo★ Down Under

Experts in geodynamics, geophysics & geology tell you what you need to know
Página de inicioFeed RSS
language
Publicado
Autores Louis Moresi, Ben Mather

Modelling temperature in the Earth’s crust is accomplished by populating a geological model with thermal properties, such as thermal conductivity and rates of heat production, and solving a numerical model of thermal diffusion with assigned boundary conditions.

Publicado
Autores Louis Moresi, Meghan S. Miller

Making your research reproducible means that you provide the entire workflow from data, through software and post-processing freely available. Not only can somebody repeat your experiments and verify them, they can build upon them. In lab-based disciplines, there are many further challenges, but in research that is predominantly based on data processing, this ought to be an achievable goal.

Publicado
Autores Adam Beall, Louis Moresi

Cratons are anomalously-strong regions of the continents that have largely resisted tectonic forces for billions of years. How such strong zones could be forged in a hot, low-viscosity, low stress, early-Earth has been a long-standing puzzle for geologists. Adam Beall, Katie Cooper and Louis Moresi have recently proposed that cratons were made by the catastrophic switching on of plate tectonics.

Publicado
Autores Adam Beall, Louis Moresi, Tim Stern

Modelling the relative time-scales of the Rayleigh-Taylor Instability and delamination, using Underworld Why model sub-continental gravitational instabilities? Within the plate tectonics framework, continents are generally considered to have a much lower density than the asthenosphere below and therefore avoid the kind of recycling that the oceanic crust and lithosphere undergoes.

Publicado
Autor Louis Moresi

In a recent paper [1], we used Underworld models to examine subduction congestion associated with the ingestion of a continental ribbon. The SE Australian geological record turned out to be a wonderful place to study this process. Here is a short summary of the work for a relatively non-technical audience that we put together and some additional figures which I prepared.