Conceptual geologic model of partially crystallized magma (C1, C3) ...
C1 and C3 are granitic crystal-melt mush (partially crystallized magma) columns that fed the most recent Mono Craters eruptions. The connection from C1 to South CoulÃ©e (SC) is older and colder than the connection from C3 to North CoulÃ©e (NC) and Panum Crater (PC), which carries hydrothermal fluid to the surface. C2 depicts a fracture network containing fluids of metamorphic or magmatic origin. R1 is a resistive cold pluton, or body of granitic rocks, that crops out at the surface at Aeolian Buttes. Black dashed lines are modeled faults (LVF = Lee Vining fault and ISF = Indian Springs fault).
J.R. Peacock, et al., 2015