to decipher is, Was this new activity on the lower East Rift Zone driven partly by the delivery of a new batch of mantle-derived magma to the volcano?” Within a single volcano, those differences can show up over a timescale of decades. Looking at the chemistry of different eruptions and comparing their volumes of lava can offer insights into fluctuations in magma supply being delivered to the volcano from the mantle, he said. That could help explain the extent to which eruptions are driven by fluctuations within the mantle versus geological activity closer to the surface.

“Going forward, an important question to decipher is, Was this new activity on the lower East Rift Zone driven partly by the delivery of a new batch of mantle-derived magma to the volcano?”How the Confederate Flag and Johnny Rebel Fell at Anaheim's Savanna High School

The Confederate flag still flies high above South Carolina's state capitol building a week after the massacre of nine blacks at a Charleston church by a bowl-cut bigot. But the racist "Stars and Bars" is coming under increasing fire in the wake of terror. Walmart, Target and other big box stores are pulling the flag from its stores; Alabama's governor ordered them quietly drawn down.

One place the Confederate flag waved far from Dixie for decades far without much protest is this reporter's alma mater, Savanna High School in Anaheim.

Savanna ran with it, and the Stars and Bars became a ubiquitous part of the school's iconography instead of hanging in some hick's garage. It went on without