Taiji
Taiji, Taiji city, Higashi-Muro county, Wakayama pref., Japan
Occurrence
Phenocryst in the middle Miocene (14 Ma) quartz porphyry, a part of the arc-shaped dike intruded in the early Miocene (17 Ma) Shimosato Formation. The Shimosato Formation is the top bed of the deep to shallow marine facies Kumano Group. The arc-shaped dike is associated with the Kumano Rhyolites (Kumano Acidic Rocks). The Kumano Rhyolites is considered as the pyroclastic flow from the Miocene Kumano Caldera. Ages of sedimentary rocks were determined by microfossils, volcanic rocks by K-Ar radiometric dating of biotite and fission track dating of zircon.
Reported Minerals
Mineral Assemblages
- Grannite porphyry(Host) - Sanidine
Localities
Related Occurrences
- S-type Granite
- I-type Granite
- A-type Granite
- Granodiorite
- Diorite
- Gabbro
- Peridotite
- Lamprophyre
- Magmatic (Podiform)
- Magmatic (Stratiform)