Phase equilibria and the pressure-temperature path of the highest-grade Ryoke metamorphic rock in the Yanai district, SW Japan

Article Abstract:

An investigation of the phase equilibria of the garnet-cordierite zone of the Ryoke metamorphic rocks in the Yanai district of Japan examined the influence of manganese and other minor elements, including titanium, zinc and calcium. Moreover, this study determined the pressure-temperature path of the zone based on the microstructures of component materials. The assemblages examined were the combinations of spinel, cordierite and biotite; garnet, cordierite and biotite; and garnet and biotite. All assembles have quartz, K-feldspar and plagioclase.

---

Phase equilibria and the pressure-temperature path of the highest-grade Ryoke metamorphic rock in the Yanai district, SW Japan

Article Abstract:

An investigation of the phase equilibria of the garnet-cordierite zone of the Ryoke metamorphic rocks in the Yanai district of Japan examined the influence of manganese and other minor elements, including titanium, zinc and calcium. Moreover, this study determined the pressure-temperature path of the zone based on the microstructures of component materials. The assemblages examined were the combinations of spinel, cordierite and biotite; garnet, cordierite and biotite; and garnet and biotite. All assembles have quartz, K-feldspar and plagioclase.

---

An SEM study of porosity and grain boundary microstructure in quartz mylonites, Simplon Fault Zone, Central Alps

Article Abstract:

The grain boundary microstructure in quartz mylonites developed in effectively monomineralic veins from the Simplon Fault Zone of the Central Alps is characterized by three features. On two-grain boundaries are scattered fine pores of almost constant size and shape and all samples have large, irregularly shaped 'vug'-like porosity. Interconnected ridge structures on three- and four-grain junctions and vein-like or branch-like branching structures are also developed on two-grain boundaries and intragranular fractures.

Natural history, Alps, Grain boundaries, Mylonite

Similar abstracts:

• Abstracts: Pressure, temperature and time constraints on Himalayan metamorphism from eastern Kashmir and western Zanskar
• Abstracts: Transport of Pb and Sr in leaky aquifers of the Bufa del Diente contact metamorphic aureole, north-east Mexico
• Abstracts: The stratigraphy and setting of the Precambrian rocks of the Llangynog Inlier, Dyfed, South Wales. Major northwest-directed Caledonian thrusting and folding in Precambrian rocks, northwest Mayo, Ireland
• Abstracts: Why is it downhill from Tonopah to Las Vegas?: a case for mantle plume support of the high northern basin and range
• Abstracts: The golden anniversary celebration of the first tornado forecast. Pikes Peak

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.