| _version_ | 1867168559054979072 |
|---|---|
| author | Watanabe, Teruo Hirama, Tadao Yuasa, Makoto Terada, Shoichi Fujioka, Kantaro |
| author_facet | Watanabe, Teruo Hirama, Tadao Yuasa, Makoto Terada, Shoichi Fujioka, Kantaro |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The chemical composition of glass inclusions in phenocrystic plagioclase and pyroxene from Sites 792 and 793, drilled during Ocean Drilling Program Leg 126 in the Bonin Arc, is examined. Immiscible liquid, which is preserved as glass inclusions with unmixed textures in plagioclase, is observed in a high-magnesian andesite, which suggests an important role of liquid immiscibility in the fractionation of high-magnesian andesite. In other andesitic rocks (SiO2 = 57-60 wt%), such unmixed textures of glass inclusions in calcic plagioclase with a similar percentage of An (around 80%) is not found. The degree of fractionation and mixing of liquid are inferred from the glass composition in pyroxene. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_773446 |
| institution | PANGAEA |
| language | en |
| publishDate | 1992 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Chemical composition of glass inclusions of volcanic rocks from the Bonin Arc Watanabe, Teruo Hirama, Tadao Yuasa, Makoto Terada, Shoichi Fujioka, Kantaro 126-792E; 126-793B; DRILL; Drilling/drill rig; Joides Resolution; Leg126; North Pacific Ocean; Ocean Drilling Program; ODP The chemical composition of glass inclusions in phenocrystic plagioclase and pyroxene from Sites 792 and 793, drilled during Ocean Drilling Program Leg 126 in the Bonin Arc, is examined. Immiscible liquid, which is preserved as glass inclusions with unmixed textures in plagioclase, is observed in a high-magnesian andesite, which suggests an important role of liquid immiscibility in the fractionation of high-magnesian andesite. In other andesitic rocks (SiO2 = 57-60 wt%), such unmixed textures of glass inclusions in calcic plagioclase with a similar percentage of An (around 80%) is not found. The degree of fractionation and mixing of liquid are inferred from the glass composition in pyroxene. |
| title | Chemical composition of glass inclusions of volcanic rocks from the Bonin Arc |
| topic | 126-792E; 126-793B; DRILL; Drilling/drill rig; Joides Resolution; Leg126; North Pacific Ocean; Ocean Drilling Program; ODP |
| url | https://doi.org/10.1594/PANGAEA.773446 |