We estimated the protolith age and peak metamorphic temperature of Yokokawagawa rocks (YMR) east Itoigawa–Shizuoka Tectonic Line using detrital zircon U–Pb dating Raman carbonaceous material geothermometry, respectively. a psammitic rock yielded youngest ∼100 Ma, which corresponds to age. geothermometry results for five pelitic samples give temperatures ∼350–380 °C. The is consistent with those...

The structural phase transition of gadolinium-scandium-gallium garnet (Gd(3)Sc(2)Ga(3)O(12), GSGG) has been studied at high pressure and high temperature using the synchrotron X-ray diffraction technique in a laser-heated diamond anvil cell. The GSGG garnet transformed to an orthorhombic perovskite structure at approximately 24 GPa after laser heating to 1500-2000 K. The garnet-to-perovskite ph...

[1] The water solubility in pyrope-rich garnet was determined between pressures of 5–9 GPa and temperatures of 1373– 1473 K under silica activity and oxygen fugacity similar to those expected in the Earth’s upper mantle. We found that pyrope-rich garnet has substantial water solubility up to 0.1 wt% under these conditions. In addition, the water content in garnet varied as a function of chemica...

Minerals recovered from the deep mantle provide a rare glimpse into deep Earth processes. We report the first discovery of ferric iron-rich majoritic garnet found as inclusions in a host garnet within an eclogite xenolith originating in the deep mantle. The composition of the host garnet indicates an ultrahigh-pressure metamorphic origin, probably at a depth of ~200 km. More importantly, the fe...

The 465 Ma Svarthopen pluton in northcentral Norway was emplaced under middle-crustal conditions (~700 MPa) into metasedimentary rocks of the Helgeland Nappe Complex. The pluton is characterized by zones of mingling and mixing of gabbro/ diorite with peraluminous, garnet-bearing biotite granite. Variation in bulk-rock Sr and Nd isotope ratios are consistent with simple mixing; however, nonunifo...

Introduction: The presence of garnet in the lunar mantle has been debated from many years (e.g., [1-3]). Data from the Apollo seismic network were unable to unambiguously resolve a garnet signature in the lower mantle. For example, higher seismic velocities in the lunar mantle (>500 km) could be indicative of an increased proportion of Mg-rich olivine [2,4], or be due to the presence of garnet ...

This paper presents Garnet, a novel spatial hypertext interface to a digital library. Garnet supports both information structuring – via spatial hypertext – and traditional information seeking – via a digital library. A user study of Garnet is reported, together with an analysis of how the organizing work done by users in a spatial hypertext workspace could support later information seeking. Th...

The effects of exchange coupling on magnetic switching properties of all-garnet multilayer thin film structures are investigated. All-garnet structures are fabricated by sandwiching a magneto-soft material of composition type Bi1.8Lu1.2Fe3.6Al1.4O12 or Bi₃Fe₅O12:Dy₂O₃ in between two magneto-hard garnet material layers of composition type Bi₂Dy₁Fe₄Ga₁O12 or Bi₂Dy₁Fe₄Ga₁O12:Bi₂O₃. The fabricated ...

Abstract Contrasting views exist in regard of the evolution metamorphic rocks southeastern Pohorje Mountains (Mts), located Eastern Alps. Major debated points are whether micaschists have experienced ultrahigh‐pressure metamorphism Late Cretaceous (Eo‐Alpine) and they were continuously exhumed or a multiple subduction–exhumation process from that time on. Therefore, we studied micaschist sample...