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Geoscience/Environment Print


From the high pressures at the Earth's core to the vacuum of outer space, the ALS has tools for investigating samples from either environmental extreme. "Geoscience" at the ALS covers a wide range of topics, from carbon sequestration and air quality to cometary composition and the formation of the solar system.

To narrow the focus a bit, the ALS has an important role to play in addressing a number of environmental issues, including environmental remediation, hazardous-waste management, global climate change, agricultural sustainability, and trace-element cycling in ecosystems. These problems present major scientific challenges, in part because natural systems are extremely complex at a range of scales. Moreover, the behavior of these systems is determined by a complex interplay of chemical, physical, and biological processes in spatially heterogeneous environments. The ALS can contribute to the knowledge base needed to address a variety of environmental issues by enabling a variety of investigations, including analytical chemistry, microscopy of heterogeneous media, and reaction kinetics in natural systems.

 

Geoscience/Environment Highlights


Space Dust Analysis Could Provide Clues to Solar System Origins

Evidence for a Weak Iron Core at Earth's Center

Iron Availability in the Southern Ocean

Studying the Solar System's Chemical Recipe

New Species of Cyanobacteria Forms Intracellular Carbonates

Direct Kinetic Measurements of a Criegee Intermediate

Mineral Deformation at Earth's Core–Mantle Boundary

Molecular Measurements of the Deep-Sea Oil Plume in the Gulf of Mexico

Real-Time Chemical Imaging of Bacterial Biofilm Development

Preservation of Fe(II) by Carbon-Rich Matrices in Hydrothermal Plumes

Experimental Test of Self-Shielding in VUV Photodissociation of CO

Isotope and Temperature Effects in Liquid Water Probed by Soft X Rays

The Iron Spin Transition in the Earth's Lower Mantle

Formation of Metallic Copper Nanoparticles at the Soil-Root Interface

Extracellular Proteins Promote Zinc Sulfide Aggregation

Particles from Comet 81P/Wild 2 Viewed by ALS Microscopes

Ultrafast Core-Hole Induced Dynamics in Water

Time-Resolved Study of Bonding in Liquid Carbon

Enol Intermediates Unexpectedly Found in Flames

Composition and Reactions of Atmospheric Aerosol Particles

Energetics of Hydrogen Bond Network Rearrangements in Liquid Water