GEOLOGY Penetrating pores . . .
Using neutron scattering to examine rock formations in Texas, Wisconsin and other parts of the country, Larry Anovitz, David Cole and Gernot Rother of Oak Ridge National Laboratory are gaining insight into little-understood geologic processes. The researchers are especially interested in studying how natural processes change the pore structure of rocks. These pores can range from nano-scale to room-size and are a primary pathway for many kinds of fluids. Combinations of small- and ultra-small angle neutron scattering, or (U)SANS, with backscattered electron imaging provide the powerful tools that allow researchers to quantitatively analyze porous rocks from the nano to the centimeter scale. Knowledge gained from this research is helping geologists understand fluid-rock interactions and could become increasingly important in discussions of many fluid-rock systems such as aquifers, oil and gas reservoirs and underground carbon sequestration. This research, the first part of which was published in Geochimica et Cosmochimica Acta, is funded by the Department of Energy's Office of Basic Energy Sciences. [Contact: Ron Walli, (865) 576-0226; firstname.lastname@example.org]
GEOGRAPHY Knowing where 7 billion people live . . .
LandScan's latest edition features improved spatial refinement, especially within urban settings, according to Eddie Bright, one of the developers of the global population distribution model. "For certain areas, very high resolution spatial data down to individual buildings are incorporated into the analysis for population distributions," Bright said. LandScan 2009, which provides 1-square-kilometer resolution, is the world standard for estimating populations at risk. The database is useful for coordinating disaster response, humanitarian relief, sustainable development and environmental protection. In addition to U.S. federal agencies, thousands of
|Contact: Ron Walli|
DOE/Oak Ridge National Laboratory