I. Equation of state of molten Mid-Ocean Ridge basalt. II. Structure of Kilauea Volcano

The EOS of molten MORB to 20 GPa indicates that the liquid is very compressible due to its enrichment in ;Observations of impact-induced interactions between the MORB liquid and its Mo container provide insight into planetary impact and differentiation processes involving metal-silicate partitioning. The shocked liquids showed extreme reduction and the FeO content of the initial melt was significantly reduced by reaction with the Mo. These reactions produced metallic particles enriched in Mo, Fe and Si. These particles have a similar texture as those found at impact sites on the earth and moon and provide clues to the impact origin of metallic particles.;A travel time tomography study of local P wave data from Kilauea Volcano, Hawaii, was undertaken to determine its lateral velocity heterogeneities. The main shallow magma reservoir is delineated by a slow anomaly centered 2 km southeast of Halemaumau caldera. There is a distinct high velocity region centered northwest of the summit from 0 to 2 km depth that may represent a dense wall and/or cap of intrusive rock that acts as a barrier or containment structure for the northern part of the reservoir. The rift zones of Kilauea are imaged as major, high velocity entities, widening to the south with depth until 6 km. These fast anomalies may be related to the sheeted dike complexes along the rifts. Magma pockets centered at 0-2 km depth have been inferred beneath Makaopuhi, Mauna Ulu and Puu Oo.