Tag Archives: mantle composition

Research reveals the scale at which Earth’s mantle composition varies

A new study by geochemists from Brown University suggests that Earth’s mantle varies in composition over kilometer-sized pockets.

PROVIDENCE, R.I. [Brown University] — New research by Brown University geochemists provides new insights on the scale at which Earth’s mantle varies in chemical composition. The findings could help scientists better understand the mixing process of mantle convection, the slow churning that drives the movement of Earth’s tectonic plates. (more…)

Read More

Bats bolster brain hypothesis, maybe technology, too

Decades of research on how bats use echolocation to keep a focus on their targets not only lends support to a long debated neuroscience hypothesis about vision but also could lead to smarter sonar and radar technologies.

PROVIDENCE, R.I. [Brown University] — Amid a neuroscience debate about how people and animals focus on distinct objects within cluttered scenes, some of the newest and best evidence comes from the way bats “see” with their ears, according to a new paper in the Journal of Experimental Biology. In fact, the perception process in question could improve sonar and radar technology. (more…)

Read More