| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5783891 | Journal of Volcanology and Geothermal Research | 2017 | 66 Pages |
Abstract
The second process is interaction between the melts and atmospheric oxygen, which results in higher Fe+ 3/FeT ratios. Detailed μ-XANES traverses show gradients in Fe+ 3/FeT of 0.145 to 0.628 over distances of 100-150 μm in thin, visibly reddened matrix glass bordering some scoriae, presumably caused by contact with air. This process was extremely rapid, giving insight into how fast the Fe+ 3/FeT ratio can change in response to changes in external conditions.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
R.T. Helz, E. Cottrell, M.N. Brounce, K.A. Kelley,