Here is a delicate spray of slender metallic blades of bismuthinite (Bi2S3), a rare but rich source of the element bismuth, rising through a bed of snow-white quartz. An image evocative of the upcoming spring season!
Professor Gerta Keller is one of the organizers of an international, multi-disciplinary conference on Volcanism, Impacts and Mass Extinctions: Causes and Effects, March 27-29, 2013, Natural History Museum in London.
Persons with an interest in isotope geochemistry and geochronology are invited to apply for a Postdoctoral Research Associate position in the Department of Geosciences to work in the lab of Professor Blair Schoene.
We are accepting applications for a post-doctoral or more senior researcher in low temperature geochemistry in the Department of Geosciences at Princeton University. Qualifications include a Ph.D. in Geosciences or a related field.
Whether it's the economics of clean energy, the politics of Washington or claims over the severity of the problem itself, the debate over climate change is loud and crowded. One aspect that often goes overlooked is the Southern Ocean ringing Antarctica at the bottom of the globe. But that, says Jorge Sarmiento, is about to change.
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Forests absorb around one quarter of the carbon dioxide that humans produce, but one small insect pest is jeopardizing this good work, with potentially serious consequences for climate change. In order to assess what kind of impact these moth outbreaks might have on carbon storage, David Medvigy from Princeton University, US, and his colleagues carried out a series of model simulations.
Refering Steinhardt to colleague Lincoln Hollister, who began his career studying rocks from the Apollo moon expeditions. Hollister, too, told Steinhardt that this quasicrystal must have come from some industrial plant, but he agreed to try to help solve the mystery.