Little seismic unrest preceded the 2014 eruption of a stratovolcano in Indonesia, which suggests that the eruption was kick-started internally by volatile-triggered overpressure.Read More »Geochemistry, Mineralogy, Volcanology
Researchers used luminescence signals from marine sediment cores to bolster estimates of precipitation levels on land over the past 30,000 years.Read More »Geochemistry, Mineralogy, Volcanology
Silicate melts containing H2O in the lowermost mantle are surprisingly dense and may stagnate there, trapping primordial volatiles and potentially causing some of the ultra-low velocity zones.Read More »Geology & Geophysics
Though coastal plutons spew greenhouse gases into the atmosphere as they form, they also pull some of those gases back out of the atmosphere as they break down over time.Read More »Geochemistry, Mineralogy, Volcanology
Rafts of pumice, spewed from an undersea volcano, recently appeared in the South Pacific. These transient, movable islands are important toeholds for marine life like barnacles, coral, and macroalgae.Read More »Atmospheric Sciences
A new technique using 81Kr can measure the age of old groundwater in arid regions. The method can be used as a proxy for past climates and weather patterns.Read More »
