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UrduResearchers from Sandia National Laboratories and partner U.S. national laboratories will compare their Geologic Disposal Safety Assessment software framework to the safety assessment software of international peers at a late-April workshop.The Sandia-led Geologic Disposal Safety Assessment framework is a computer modeling system designed to answer critical safety assessment questions about future disposal options for spent nuclear fuel deep underground and the system of tunnels, containers and possible concrete-like barriers used to keep the radioactive material contained far from the surface and water sources, said Emily Stein, a Sandia manager overseeing the development of the framework.
Tag: Geochemistry
NAU geochemist on new study confirming cause of greatest mass extinction event
Associate professor Laura Wasylenki co-authored a new paper in Nature Communications that presents the results of nickel isotope analyses on Late Permian sedimentary rocks. The results demonstrate the power of nickel isotope analyses, which are relatively new, to solve long-standing problems in the geosciences.
CUR Geosciences Division Announces 2021 Awardees for Excellence in Student Research
The Geosciences Division of the Council on Undergraduate Research announced the 2021 awardees for excellence in student research: Zoe Lacey (Trinity University) and Hanna Szydlowski (Grand Valley State University)
Unlocking the secrets of Earth’s early atmosphere
Research partly conducted at the Advanced Photon Source helped scientists discover the composition of Earth’s first atmosphere. What they found raises questions about the origin of life on Earth.
New Clues Shed Light On Importance Of Earth’s Ice Sheets
Study Stems from Antarctic Expedition to Drill Through Glaciers
Gulf of Mexico Mission: ‘Ocean Blue Holes Are Not Created Equal’
Scientists recently got a unique glimpse into the “Green Banana” Blue Hole thanks to gutsy divers and a 500-pound autonomous, benthic lander. Together with hand-picked, elite scuba divers, the research team is unraveling the structure and behavior of these marine environments by examining geochemistry, hydrodynamics, and biology. Findings from this exploration also may have important implications for phytoplankton in the Gulf of Mexico, including blooms of the Florida Red-tide species Karenia brevis.
Carbon emission from permafrost soils underestimated by 14%
Picture 500 million cars stacked in rows. That’s how much carbon—about 1,000 petagrams, or one billion metric tons—is locked away in Arctic permafrost.
Geologists determine early Earth was a ‘water world’ by studying exposed ocean crust
Geologists studied exposed, 3.2-billion-year-old ocean crust in Australia and used that rock data to build a quantitative, inverse model of ancient seawater. The model indicates the early Earth could have been a “water world” with submerged continents.
Life could have emerged from lakes with high phosphorus
Life as we know it requires phosphorus, which is scarce. How did the early Earth supply this key ingredient? A University of Washington study, published Dec. 30 in the Proceedings of the National Academy of Sciences, finds answers in certain types of carbonate-rich lakes.