Format:
1 Online-Ressource (xiv, 131 Seiten, 9028 KB)
,
Illustrationen, Diagramme
Content:
This research study focuses on the behaviour of Li and B during magmatic ascent, and decompression-driven degassing related to volcanic systems. The main objective of this dissertation is to determine whether it is possible to use the diffusion properties of the two trace elements as a tool to trace magmatic ascent rate. With this objective, diffusion-couple and decompression experiments have been performed in order to study Li and B mobility in intra-melt conditions first, and then in an evolving system during decompression-driven degassing. Synthetic glasses were prepared with rhyolitic composition and an initial water content of 4.2 wt%, and all the experiments were performed using an internally heated pressure vessel, in order to ensure a precise control on the experimental parameters such as temperature and pressure. Diffusion-couple experiments were performed with a fix pressure 300 MPa. The temperature was varied in the range of 700-1250 °C with durations between 0 seconds and 24 hours. The diffusion-couple results show that ...
Note:
Dissertation Universität Potsdam 2022
Additional Edition:
Erscheint auch als Druck-Ausgabe Spallanzani, Roberta Li and B in ascending magmas: an experimental study on their mobility and isotopic fractionation Potsdam, 2022
Language:
English
Keywords:
Hochschulschrift
DOI:
10.25932/publishup-56061
URN:
urn:nbn:de:kobv:517-opus4-560619
URL:
https://d-nb.info/1270570331/34
Author information:
Vetere, Francesco P. 1975-
Bookmarklink
