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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.
The program QUEST, whose formal name is Questioning Underlies Effective Science Teaching, had two tracks this summer — one focusing on life in extreme environments, led by Tullis Onstott, a professor of geosciences, and another focusing on weather and climate, led by Steven Carson, a middle school teacher and former researcher at the Geophysical Fluid Dynamics Laboratory in Princeton.
A nitrite-oxidizing enzyme may work in reverse for some microbes in the Antarctic autumn. Marine microorganisms play a major role in cycling elements like carbon and nitrogen throughout the environment. In the nitrogen cycle, some microbes perform an especially important step: the oxidation of nitrite (NO2−) to nitrate (NO3−), the dominant form of biologically available nitrogen in the ocean. Now Kemeny et al. suggest that the enzyme that converts nitrite to nitrate sometimes works in revers
Geosciences Grad Student Darcy McRose is one of seven students to receive a Mary and Randall Hack ’69 Graduate Award from the Princeton Environmental Institutes (PEI).  Recipients come from a range of disciplines; yet meet the criteria of focusing on water-related topics with environmental implications. On behalf of the Department of Geosciences, we like to congratulate Darcy McRose at this time of honorable recognition.