Evidence for fluoride melts in Earth's mantle formed by liquid immiscibility
- 1Mineralogisches Institut, Universität Heidelberg, Im Neuenheimer Feld 236, 69120 Heidelberg, Germany
Abstract
Hitherto unknown fluoride melts were found in metasomatized mantle xenoliths from New Zealand. These fluoride melts were only preserved in rock fragments that were carefully polished using nonhydrous polishing liquids. The fluoride melts were derived by liquid immiscibility from a precursor alkali silicate melt, and their geochemical signature suggests an origin within a subduction-zone setting.
Footnotes
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↵*sklemmemin.uni-heidelberg.de
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- Accepted January 23, 2004.
- Received November 13, 2003.
- Revision received January 22, 2004.
- Geological Society of America
