2018 AGU Fall Meeting Update: Dec. 12-13

DTM scientists presented their posters and mingled with over 25,000 scientists during the 2018 AGU Fall Meeting, held December 10-14, 2018 at the Walter E. Washington Convention Center in Washington, D.C. Photo: Roberto Molar Candanosa, DTM.
Friday, December 14, 2018 

DTM scientists continued to have an eventful AGU Fall Meeting on December 12-13, 2018 at the Walter E. Washington Convention Center in Washington, D.C with presentations in Earth interior science.

Brad Peters participated in a poster session on Wednesday, December 12, where he presented new methods to separate tungsten and other trace elements for high-precision mass spectrometry. This work, Peters says, can be particularly useful for reducing lab safety concerns.

In the afternoon poster session, DTM Director Rick Carlson and Jesse Reimink presented their poster titled, "The Transition from Reworking of Hadean Crust to Generation of New Archean Crust: The Slave Craton Perspective." Carlson and Reimink explained that although the data for this event is extremely complex, it is likely that the tungsten composition of the Earth's mantle completely changed 3 billion years ago.

Wednesday afternoon, Tim Jones gave an invited talk titled, "Tungsten Isotopes in Mantle Plumes: Heads it's Positive, Tails it's Negative." This talk focused on mantle plumes leading to large igneous provinces and ocean island basalts. Jones' computer simulations explore the implications of mantle plumes resulting in different chemical compositions for each of these types of volcanism.

Presentations on Earth science continued on Thursday, December 13 with Steven Golden's exhibition on digitization of Carnegie's decades-old seismology records. These records, stored at Carnegie's BBR campus inside a shield room, are analog tapes with seismology data from seismographs pioneered by Selwyn Sacks in 1965. Golden's presentation was part of AGU's new eLightning sessions involving oral presentations and interactive posters.

Diana Roman and Shi Joyce Sim also presented their posters on Thursday afternoon. Sim presented new modeling of magma dynamics at mid-ocean ridges. Her models can help scientists understand how magma focuses into small underwater volcanoes. Close to Sim was Roman, who presented her work on Kilauea volcano. Roman's work on Kilauea analyzed seismicity at different points of the volcano, which can help understand probabilities for eruption.

Alan Boss closed DTM's activities at AGU on Thursday evening. Boss participated in a Town Hall titled, "The National Academies Committees on Exoplanet Science Strategy and Astrobiology Science Strategy for the Search for Life in the Universe."

Keep up with DTM scientists at AGU via Twitter, @CarnegiePlanets and @CarnegieScience using #CarnegieAGU!

Last week, our scientists sat down to give us a quick preview of their #AGU18 presentations. We got them on video for you: https://bit.ly/2SBH2iQ