The recognition of multiple magmatic events and pre-existing deformation zones in metamorphic rocks as illustrated by CL signatures and numerical modelling: examples from the Ballachulish contact aureole, Scotland |
| |
| Authors: | Helena Bergman Sandra Piazolo |
| |
| Affiliation: | 1. Department of Geological Sciences, Stockholm University, 106 91, Stockholm, Sweden
2. Department of Earth and Planetary Sciences, GEMOC ARC National Key Centre, Macquarie University, Sydney, NSW, Australia
|
| |
| Abstract: | The combination of cathodoluminescence (CL) analysis, temperature and temperature–time calculations, and microstructural numerical modelling offers the possibility to derive the time-resolved evolution of a metamorphic rock. This combination of techniques is applied to a natural laboratory, namely the Ballachulish contact aureole, Scotland. Analysis of the Appin Quartzite reveals that the aureole was produced by two distinct magmatic events and infiltrated by associated fluids. Developing microstructures allow us to divide the aureole into three distinct regions. Region A (0–400?m, 663°C?T max?T max?700?m of contact, T max?
|
| |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ |
|
