eruptive

By the early hours of January 16, all eruptive activity had ceased.

Mount St. Helens’ eruptive history began roughly 40,000 years ago with dacitic volcanism, behavior that tends to be explosive and yields large amounts of ash and pumice.

Historical accounts and studies of ancient volcanic rocks show that times of volcanic repose transition into loud seismic and eruptive awakenings in a cycle that’s transpired several times in the past few millennia.

Sampled and warped vocals, echoey synthesizers, turntable scratching and eruptive percussion all ricochet around his promises of hot times after sunset.

So far, the team has found four previously unrecognized ignimbrite units at Sour Creek, suggesting at least four eruptive pulses.