Abstract
Microphenocrystic pyrrhotites were observed in the glassy groundmass of two dacite rocks from Satsuma-Iwojima, southwest Kyushu, Japan. It suggests that the dacite magma was saturated with respect to pyrrhotite at the time of eruption, and thus the sulfur contents in the groundmass can be taken as the solubility of sulfur in the dacite magma. The solubility of sulfur in the dacite rocks thus calculated is 65 to 72 ppm sulfur at the estimated conditions of T=900±50°C, {Mathematical expression} and {Mathematical expression} atm.
| Original language | English |
|---|---|
| Pages (from-to) | 21-26 |
| Number of pages | 6 |
| Journal | Contributions to Mineralogy and Petrology |
| Volume | 78 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1981/10 |
ASJC Scopus subject areas
- Geophysics
- Geochemistry and Petrology