The connection between plutons and volcanoes

The genetic link between rhyolites and associated subvolcanic intrusions and lavas from Turkey creek, Arizona (USA) was examined by scientist from Princeton University, ETH Zurich, Bowdoin College Brunswick and University of Geneva. U-Pb zircon geochronology evidenced 300'000 years of zircon growth within rhyolites and dacites, interrupted 150'000 years before the large eruptive event. The latter is interpreted to reflect the assembly time of 500 km3 of rhyolite within the melt-rich cap.

See original article at http://geology.gsapubs.org/content/early/2016/02/24/G37539.1.abstract