Surprise: Stretchy Slabs in Deep Earth

Lara Wagner

New observations from an international geophysics team, including Carnegie’s Lara Wagner, suggest that the standard belief that the Earth’s rigid tectonic plates stay strong when they slide under another plate and sink into the deep Earth may not be universal. Instead, the new work suggests that the Nazca slab in Perú may be relatively weak and deforms easily.


Photo Essay: Seismic Fieldwork on Alaskan Volcanoes


Scientists have a relatively good understanding of the processes occurring in the upper portions of Earth's crust that lead to volcanic activity. However, much remains unknown about how these shallow processes are controlled by the large-scale tectonics and deep mantle processes that are ultimately responsible for volcanism. 

A NSF-funded group led by DTM seismologist Diana Roman headed to Alaska for three weeks, two of which were spent on the research vessel Maritime Maid, to collect seismic data in the Islands of the Four Mountains and tephra samples throughout the eastern Aleutians. 


Postdoc Workshop: Writing Job Applications

Job Applications

Steve Shirey and Lara Wagner led a postdoc workshop on the techniques behind writing teaching and research statements for a job application on Tuesday, 17 November 2015 in the library's Abelson Collaborative Center. 


New Solar System Modeling from DTM's John Chambers and Former Postdoc Nathan Kaib Points to a New Possibility


New Solar System modeling from DTM's John Chambers and former DTM postdoctoral fellow, Nathan Kaib, now assistant professor in the astrophysics group at The University of Oklahoma, points to a new possibility: our early Solar System potentially consisted of five or even six giant worlds, and there may have been a large number of inner, terrestrial planets that were ejected from the Solar System back in its infancy.


The Giant Magellan Telescope Organization Breaks Ground in Chile


Leading scientists, senior officials, and supporters from an international consortium of universities and research institutions are gathering on a remote mountaintop high in the Chilean Andes today to celebrate groundbreaking for the Giant Magellan Telescope (GMT). The ceremony marks the commencement of on-site construction of the telescope and its support base. The GMT is poised to become the world’s largest telescope when it begins early operations in 2021. It will produce images ten times sharper than those delivered by the Hubble Space Telescope and will address key questions in cosmology, astrophysics and the study of planets outside our solar system.