Taiji seashore
Taiji, Taiji city, Higashi-Muro county, Wakayama pref., Japan
Occurrence
Marine oxidation zone of moderate-T hydrothermal deposit
Marine oxidation zone of a moderate temperature hydrothermal deposit in Shimosato Sandstone and Mudstone of Koguchi Formation, Kumano Grouup associated with Kumano Acidic Rocks.
Outcrop of marine oxidation zone of the hydrothermal deposit in mudstone of Shimosato Sandstone and Mudstone. The green part above the coin is the paratacamite vein. The black host is mudstone, and brown crusts are limonite formed by oxidation of Fe in the deposit. Paratacamite, Cl-bearing secondary mineral, was formed by the reaction of chalcopyrite with Cl in seawater.
Reported Minerals
Mineral Assemblages
- Paratacamite
Localities
- Taiji seashore (Marine oxidation zone)
- Futago Island (Marine oxidation zone)