R7: Petrology, Mineralogy and Economic geology (Joint Session with Society of Resource Geology)

[R7P-04] Iron mineralization in the Waga-Sennin skarn deposit, Iwate Prefecture, Japan

*Naoki Igarashi¹, Yasushi Wtanabe¹, Kotaro Seno¹, Takuya Echigo¹, Shogo Aoki¹ (1. Akita Univ. Int)

Keywords:Skarn, Hematite, Nishiwaga area, Iwate Prefecture, Garnet

This study discusses the growth process of hydrothermal fluids that caused the Hematite mineralization.
The results of microscopic observations suggest that there were two mineralization processes by hydrothermal fluids such as (1) high oxygen fugacity, (2) low oxygen fugacity and high sulfur fugacity, and conclude that hydrothermal fluids such as (1) caused the Hematite mineralization process associated with the skarn mineralization process.