Noble gas solubility in super-critical water: implications for inert gas studies and geochronology
Inert gases will ideally exhibit infinite miscibility with super-critical water. The implications of this phenomenon are discussed in the context of the resetting of the K-Ar system during regional metamorphism, and emplacement of granites. Inert gas abundances in oceanfloor rocks and shales may als...
| Autores: | , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1984 |
| País: | México |
| Institución: | UNIVERSIDAD NACIONAL AUTÓNOMA DE MÉXICO |
| Repositorio: | Geofísica Internacional |
| Idioma: | español |
| OAI Identifier: | oai:revistagi.geofisica.unam.mx:article/1158 |
| Acceso en línea: | http://revistagi.geofisica.unam.mx/index.php/RGI/article/view/1158 |
| Access Level: | acceso abierto |
| Palabra clave: | Gases nobles Agua supercrítica Gas inerte Geocronología Sistema K-Ar Noble gases Supercritical water Inert gas Geochronology K-Ar system |
| Sumario: | Inert gases will ideally exhibit infinite miscibility with super-critical water. The implications of this phenomenon are discussed in the context of the resetting of the K-Ar system during regional metamorphism, and emplacement of granites. Inert gas abundances in oceanfloor rocks and shales may also be interpreted as a consequence (at least in part) of partioning between water and silicate phases in which the light inert gases are preferentially taken up in water. The function of super-critical water as a transport medium for inert gases offers an important alternative to the unlikely process ofvolume diffusion at low temperatures. |
|---|