Chemical composition of glass inclusions of volcanic rocks from the Bonin Arc
| Cobertura |
MEDIAN LATITUDE: 32.076028 * MEDIAN LONGITUDE: 140.506500 * SOUTH-BOUND LATITUDE: 31.105910 * WEST-BOUND LONGITUDE: 140.379300 * NORTH-BOUND LATITUDE: 32.399400 * EAST-BOUND LONGITUDE: 140.888100 * DATE/TIME START: 1989-05-19T04:55:00 * DATE/TIME END: 1989-06-17T18:55:00 |
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| Data(s) |
05/01/1992
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| Resumo |
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. |
| Formato |
application/zip, 4 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.773446 doi:10.1594/PANGAEA.773446 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Watanabe, Teruo; Hirama, Tadao; Yuasa, Makoto; Terada, Shoichi; Fujioka, Kantaro (1992): Glass inclusions with microglobules in plagioclase and pyroxene phenocrysts of volcanic rocks from the Bonin Arc, Leg 126. In: Taylor, B; Fujioka, K; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 126, 171-183, doi:10.2973/odp.proc.sr.126.126.1992 |
| Palavras-Chave | #126-792E; 126-793B; Al; Al2O3; Aluminium; Aluminium oxide; Ca; Ca/(Ca+Na); Calcium; Calcium number; Calcium oxide; Calculated; Calculated based on oxygen number; CaO; DRILL; Drilling/drill rig; Elements, total; Fe; FeO; Iron 2+ and 3+; Iron oxide, FeO; Joides Resolution; K; K2O; Label; Leg126; Magnesium; Magnesium number; Magnesium oxide; Manganese; Manganese oxide; Mg; Mg/(Mg + Fe); MgO; Mn; MnO; Na; Na2O; No O; North Pacific Ocean; Number of oxygens; Ocean Drilling Program; ODP; ODP sample designation; Potassium; Potassium oxide; Samp com; Sample code/label; Sample comment; Si; Silicon; Silicon dioxide; SiO2; Sodium; Sodium oxide; Sum; Ti; TiO2; Titanium; Titanium oxide; total |
| Tipo |
Dataset |
