Insights into rhyolite magma dome systems based on mineral and whole rock compositions at the Mono Craters, Eastern California.

The Mono Craters magmatic system, found in a transtensional tectonic setting, consists of small magmatic bodies, dikes, and sills. New sampling of the Mono Craters reveals a wider range of magmatic compositions and a more complex storage and delivery system than heretofore recognized. Space compositional patterns, as well as crystallization temperatures and pressures taken from olivine-, feldspar-, orthopyroxene-, and clinopyroxene-liquid equilibria, are used to create a new model for the Mono Craters magmatic system.