New Mercury Surface Composition Maps Illuminate the Planet's History

Shoshana Weider

Two new papers from members of the MESSENGER Science Team provide global-scale maps of Mercury’s surface chemistry that reveal previously unrecognized geochemical terranes — large regions that have compositions distinct from their surroundings. The presence of these large terranes has important implications for the history of the planet.


Postdoc Spotlight: Cosmochemist Jemma Davidson

Jemma Davidson

The life of DTM NASA Associate Jemma Davidson revolves around old, lifeless rocks, thanks to her 9th grade geography teacher and a high school research paper.

Davidson had already resigned to become an accountant while sitting in her 9th grade geography class. But when her teacher accidentally dropped a volcanic rock he had collected during fieldwork, denting her wooden desk and releasing a sulfurous smell into the air, her aspirations changed. She was now determined to study geology.


Over 84 Students Gather for the Second International Diamond School in Italy

International Diamond School 2015

Over 84 ‘students’, including master, Ph.D., postdoctoral and professional levels, from 18 different countries, gathered in the Italian Alps at the end of January for a unique international diamond school focused on training new diamond researchers and exposing individuals in the diamond industry to latest techniques.

The University of Padua hosted this program, titled “The Nature of Diamonds and Their Use in Earth’s Study”, from 27-31 January 2015, which was organized by DTM's Steven Shirey, Fabrizio Nestola (University of Padua) and Graham Pearson (University of Alberta) under the auspices of the Diamonds and the Mantle Geodynamics of Carbon consortium (DMGC) part of the Deep Carbon Observatory (DCO).


Peter Driscoll Joins DTM's Geophysics Staff

Carnegie News

DTM is pleased to announce that Peter Driscoll will join its geophysics staff in August 2015.

Driscoll received his Ph.D. degree in Earth and planetary science from Johns Hopkins University in 2010. Much of Driscoll's research is driven by the questions: what makes the Earth a unique planet? He says Earth is unique in that it is the only planet that has maintained a strong magnetic field, plate tectonics, and surface liquid water over most, and possibly, all of its history. What is it about Earth’s interior that has allowed these complex phenomena to occur? How do they work? Are they connected in any way? 



Rewriting Your Own Script

Imposter Syndrome

Johanna Teske, origins fellow at DTM, Alycia Weinberger, staff scientist at DTM, and Anat Shahar, staff scientist at the Geophysical Laboratory (GL), led a postdoc workshop titled "What is Imposter Syndrome?" on Wednesday, 25 February 2015, in the Tuve Dining Hall at DTM.

Imposter Syndrome (IS) affects all genders, races, ethnicities, and sexual orientations throughout all levels of study, discipline, and education. Studies show that symptoms of IS do not go away at higher stages of career success. Identifying the symptoms and dealing with them accordingly is important for your own career trajectory. 

Teske led the discussion on the topic, and walked the group through the seven steps, as outlined in the attached notes from the workshop, to mitigating symptoms of IS. A majority of the material distributed during this workshop was based on Valerie Young's book, "The Secret Thoughts of Successful Women: Why Capable People Suffer from the Imposter Syndrome and How to Thrive in Spite of It". You can find out more about IS and Young via her website here


The DTM Borehole Strainmeter Program

Alan Linde

Collaboration between DTM’s Selwyn Sacks and Dale Evertson (then at the University of Texas), in the late 1960s, initiated the continuing development of highly sensitive borehole strainmeters that utilize a hydraulic sensor, resulting in noise-free hydraulic amplification of the signal before coupling into an electronic transducer.

From the outset, they coupled the instrument to the rock wall via an annulus of expansive grout; this change from mechanical coupling devices was critical in allowing, for the first time, faithful recording of the rock deformation. An early proof of this came with the first field installation of three sites in Matsushiro, Japan.