The effect of diffusive re-equilibration time on trace element partitioning between alkali feldspar and trachytic melts

Autor: Arzilli, Fabio, Fabbrizio, Alessandro, Schmidt, M. W., Petrelli, Maurizio, Maimaiti, M, Dingwell, D. B., Paris, E., Burton, M., Carroll, M.

We present new experimental data on major and trace element partition coefficients between alkali feldspar and trachytic melt. Experiments were conducted at 500 MPa, 870 890 {\deg}C to investigate through short disequilibrium and long near equilibriu

Externí odkaz: http://arxiv.org/abs/1812.10276

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Structure, Structural Relaxation and Ion Transport in Sodium Disilicate Melts

Autor: Meyer, A., Schober, H., Dingwell, D. B.

We have investigated Na2SiO5 melts with inelastic neutron scattering at temperatures up to 1600K. The Si-O network relaxes on a time scale of ns, whereas the Na ion relaxation dynamics are found on a time scale of 10ps. The elastic structure factor e

Externí odkaz: http://arxiv.org/abs/cond-mat/0206168

Drone deployed sensors: Development of a tool for multiparametric measurements close to active volcanic vents

Autor: Schmid, M., Kueppers, U., Huber, J., Dingwell, D.

Publikováno v: XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)

Direct observation of eruptive activity and related measurements are limited to above the vent and correlations to the source conditions remain challenging. While interpretation of data to infer source conditions relies critically on high-quality dat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::354e55f21996427aab68c728f2dfbfe2

Conduit processes in crystal-rich dacitic magma and implications for eruptive cycles at Guagua Pichincha volcano, Ecuador

Autor: Colombier, M., Bernard, B., Wright, H., Le Pennec, Jean-Luc, Cáceres, F., Cimarelli, C., Heap, M., Samaniego, Pablo, Vasseur, J., Dingwell, D.

Publikováno v: Bulletin of Volcanology
Bulletin of Volcanology, 2022, 84 (12), pp.105. ⟨10.1007/s00445-022-01612-1⟩
Bulletin Of Volcanology (0258-8900) (Springer), 2022-11, Vol. 84, N. 105, P. 23p.

Stratovolcanoes are commonly characterised by cyclic eruptive activity marked by transitions between dome-forming, Vulcanian, Subplinian and Plinian eruptions. Guagua Pichincha volcano (Ecuador) has been a location of such cyclicity for the past ~ 20

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bf952aae228d32b23ca1ca3559ee3c5
https://hal.science/hal-03915050