Articles | Volume 36, issue 4
https://doi.org/10.5194/ejm-36-623-2024
https://doi.org/10.5194/ejm-36-623-2024
Research article
 | 
23 Aug 2024
Research article |  | 23 Aug 2024

Chemical interdiffusion between Na-series tephritic and phonolitic melts with different H2O content, temperature, and oxygen fugacity values

Diego González-García, Florian Pohl, Felix Marxer, Stepan Krasheninnikov, Renat Almeev, and François Holtz

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Cited articles

Ablay, G. J., Carroll, M. R., Palmer, M. R., Marti, J., and Sparks, R. S. J.: Basanite–Phonolite Lineages of the Teide–Pico Viejo Volcanic Complex, Tenerife, Canary Islands, J. Petrol., 39, 905–936, 1998. 
Andújar, J. and Scaillet, B.: Experimental Constraints on Parameters Controlling the Difference in the Eruptive Dynamics of Phonolitic Magmas: the Case of Tenerife (Canary Islands), J. Petrol., 53, 1777–1806, https://doi.org/10.1093/petrology/egs033, 2012. 
Andújar, J., Costa, F., Martí, J., Wolff, J. A., and Carroll, M. R.: Experimental constraints on pre-eruptive conditions of phonolitic magma from the caldera-forming El Abrigo eruption, Tenerife (Canary Islands), Chem. Geol., 257, 173–191, https://doi.org/10.1016/j.chemgeo.2008.08.012, 2008. 
Andújar, J., Costa, F., and Martí, J.: Magma storage conditions of the last eruption of Teide volcano (Canary Islands, Spain), B. Volcanol., 72, 381–395, https://doi.org/10.1007/s00445-009-0325-3, 2010. 
Baker, D. R.: Tracer versus trace element diffusion: Diffusional decoupling of Sr concentration from Sr isotope composition, Geochim. Cosmochim. Ac., 53, 3015–3023, https://doi.org/10.1016/0016-7037(89)90177-4, 1989. 
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Short summary
We studied the exchange of chemical elements by diffusion between magmas of tephritic and phonolitic composition from the Canary Islands, performing experiments at high pressure and high temperature with different amounts of added water. Our results characterize the way water and temperature affect the diffusion process, and we also find unexpectedly high mobility of aluminium, which may be related to its variable chemical bonding in highly alkaline melts. 
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