Laboratory experiments and geochemical model suggest that chlorate is very effective to oxidize reducing iron to reddish iron oxides on Mars when liquid water was present on the surface.
Modeling
Improving Estimates of Coastal Carbon Sequestration
A new two-model approach could reduce uncertainties in calculated rates of “blue carbon” accumulation within soils of seagrass, tidal marsh, and mangrove habitats.
Three Times Tectonics Changed the Climate
Fifty years after the birth of modern plate tectonics theory, a group of researchers highlights three key examples of how our planet’s shape-shifting outer layer has altered our climate.
Sparks May Reveal the Nature of Ash Plumes
In lab experiments and models, researchers uncover how ash can affect the standing shock waves of erupting volcanoes. Their findings may lead to new predictions of volcanic ash hazards.
Modeling How Groundwater Pumping Will Affect Aquatic Ecosystems
Regions with dry climates and heavy agricultural industries may be the most hard-hit.
How Chemical Processes Influence Fracture Pattern Development
Many tools of chemical analysis, experimentation, modeling, and theory have the potential to increase our understanding of how fracture patterns develop at different geological time scales.
Wanted for Grand Theft Galaxy: The Milky Way
Several dwarf galaxies orbiting the Milky Way were likely stolen from the Large Magellanic Cloud.
Explaining the Missing Energy in Mars’s Electrons
Electrons energized and trapped at Mars were thought to lose energy inside the planet’s magnetosheath, but new research suggests a different explanation of spacecraft data.
Brazil’s Oil Spill Is a Mystery, so Scientists Try Oil Forensics
Thousands of barrels of oil have been tarring Brazil’s beaches since September, and no one knows why. An oil spill scientist is running oil forensics to find out.
Earthquake Statistics Vary with Fault Size
A theoretical study explores why small earthquake sources can produce quasiperiodic sequences of identical events, whereas earthquakes on large faults are intrinsically more variable.
