Technique measures heat transport in the Earth’s crust

David Kilper/WUSTL Photo ServicesPutting a new spin on an old technique, Anne M. Hofmeister, Ph.D., research professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, has revolutionized scientists’ understanding of heat transport in the Earth’s crust, the outermost solid shell of our planet.

Professor’s video series explains all of Earth’s facets

Image courtesy of NASA”How the Earth Works” is a boxed set of 48 30-minute video lectures developed and delivered by WUSTL’s Michael E. Wysession. The lectures explore every aspect of the Earth and are designed to appeal to the curious lay public.Videos have been the bailiwick of rock stars at least since the days of Bob Dylan. But now they’re spilling over into a new arena — academia. Michael E. Wysession, Ph.D., associate professor of earth and planetary sciences in Arts & Sciences at Washington University in St. Louis, has 48 lectures on planet Earth coming out in a video format in February. It’s a sort of brainiac’s boxed set. Each 30-minute lecture focuses on an aspect of the Earth, from its origins and composition to its climate, orbit, pollution and relationship to human history.

3-D seismic model of vast water reservoir revealed

Eric ChouA slice through the earth, showing the attenuation anomalies within the mantle.A seismologist at Washington University in St. Louis has made the first 3-D model of seismic wave damping — diminishing — deep in the Earth’s mantle and has revealed the existence of an underground water reservoir at least the volume of the Arctic Ocean. The research, which analyzed 80,000 shear waves from more than 600,000 seismograms, provides the first evidence for water existing in the Earth’s deep mantle.

Map of life on Earth could be used on Mars

Carinne Blank has a method she uses to date ancient life forms that could be helpful for specimens from Mars.A geologist from Washington University in St. Louis is developing new techniques to render a more coherent story of how primitive life arose and diverged on Earth – with implications for Mars.