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Two pieces of Bisbee-born azurite met again, by chance, thanks to the eagle eye of a student worker. Here's the backstory: In the late 19th century, copper mining took hold in Bisbee, Arizona, under the direction of the Phelps Dodge Corp., initially founded in 1834 as an import-export business. At that time, Princeton University graduates ran some of the area mines, including Copper Queen.
When he started his graduate studies in 2011, Brenhin Keller had planned on a laboratory-based research career focusing on the chemistry and features of ancient rock. But at the time, his Princeton University Ph.D. advisor, Blair Schoene, was still setting up equipment in his new laboratory. He and Keller instead chose a computational project Keller could begin immediately. - "DEIXIS, The DOE CSGF Annual"
The Department of Geosciences and Princeton University congratulates C. Yanhua Yuan on successfully defending her Ph.D. thesis: "Adjoint Seismic Tomography Using Full-Waveform and Envelope Inversion."
At the Department’s annual fall picnic last Friday, two graduate students were awarded Arnold Guyot Teaching Prizes for their work as Assistants in Instruction.  The awards recognize excellence in instruction, contribution to curriculum, and overall contribution to the teaching mission of the Department.
The Department of Geosciences and Princeton University congratulates C. Brenhin Keller on successfully defending his Ph.D. thesis: "Geochemical Evolution of Earth’s Continental Crust."
Princeton University researchers have compiled 30 years of data to construct the first ice core-based record of atmospheric oxygen concentrations spanning the past 800,000 years, according to a paper published today in the journal Science.
WITWATERSRAND BASIN, South Africa — A mile down in an unused mine tunnel, scientists guided by helmet lamps trudged through darkness and the muck of a flooded, uneven floor.  Leaning a ladder against the hard rock wall, Tullis C. Onstott, a geosciences professor at Princeton, climbed to open an old valve about a dozen feet up. Out flowed water chock-full of microbes, organisms flourishing from heat generated from the interior.
Stressing a theme of community, Princeton President Christopher L. Eisgruber welcomed the Class of 2020 to the University on Sunday, Sept. 11, during Opening Exercises marking the start of the academic year.
The new mineral "hollisterite," a monoclinic aluminum iron alloy, recently named in honor of our own Lincoln S. Hollister, professor emeritus. The discovery of hollisterite and several other new minerals, including the first natural occurrence of a quasicrystal, icasahedrite, was announced at last month’s 79th Annual Meeting of the Meteoritical Society in Berlin, Germany.
Earthquakes have never been easy to study in the oceans, but documenting their processes is important as scientists continue to conquer the data-poor seas. Ocean-bottom seismometers are relatively commonly used to gauge quakes undersea, and moored hydrophone systems pick up the odd earthquake as well. But those tools are expensive and difficult to deploy. Enter the Son-O-Mermaid, a platform developed over the course of decades to make things simpler and much less costly.