On a cool spring morning in the mountains of southwest Washington, 12-year old Cathy Cahill helped her dad plant scientific instruments around the base of trembling Mount St. Helens. A few days later, the volcano blew
Tag: volcanic ash
Mount Redoubt sounds off
Volcanoes are an awe-inspiring and hazardous part of our planet. And now, they’re being made to sing. Scientists are turning seismic data into audio data in order to grasp just what’s going on deep in the Earth’s crust, and better forecast future explosive eruptions.
Arctic volcanism helps date ancient archaeological sites
“By dating ash,” said Richard Vanderhoek, “An archaeological site in Alaska, can be placed on a chronostratographic timeline.” Or in other words: the chemical makeup of the ash, matched with a volcano eruption, will provide an approximate date of the site. Archaeologists worldwide have dated ancient sites