Nagatani
Nagatani, Nose city, Toyono county, Osaka pref., Japan
Occurrence
Phenocryst of Late Cretaceous granite porphyry dike intruded in Sasori Tuff Breccia. This dike had been considered as crystal lapilli in Sasori Tuff Breccia.
Outcrop of weathered granite porphyry in Sasori Tuff Breccia. Prismatic white grains are orthoclase. Orthoclase was replaced by clay minerals by weathering. The massive pale brown basement is a matrix of quartz porphyry.
Reported Minerals
Mineral Assemblages
- Quartz porphyry(Host) - Orthoclase - Beta-Quartz
Localities
Related Occurrences
- S-type Granite
- I-type Granite
- A-type Granite
- Granodiorite
- Diorite
- Gabbro
- Peridotite
- Lamprophyre
- Magmatic (Podiform)
- Magmatic (Stratiform)