Magma and mountain building at the Columbia River Gorge
The Columbia River has sawed its way to the sea as a mountain range grew up around it. There is history to be read in the walls of the gorge, including history of the mountains’ rise.
From crust to core: how subduction relates to ultralow velocity zones
Ultralow velocity zones are among the strangest structures inside Earth and their origins have been debated for decades—including a new paper in Science Advances.
Scientists spy salty groundwater system beneath Antarctic ice stream
Antarctica’s ice sheets are on the move, with the solid ice flowing toward the surrounding oceans. This exodus toward the coasts, explains Paul Winberry, a seismologist at Central Washington University, is enabled by fast moving ice streams—regions where liquid water located at the interface between the ice and underlying subsurface facilitates an ice sheet’s seaward slide.