Dr Ana Casas Ramos

Research Fellow
Research School of Earth Sciences

Hola! I’m Ana, a chemical engineer-turned-geochemist, with a passion for (active) volcanoes. Particularly, I’m interested in studying the processes by which low- and high- temperature gas interactions with rocks, or with aqueous environments, occur and how these affect the re-distribution of elements on earth. My current project seeks to constrain the impact of hot gas interactions with volcanic rocks in ore-formation processes, so stay tuned…

Besides science, I’m an ukulele enthusiast and a Schafkopf player.



2016-2020. PhD in Geochemistry (Dr. rer. nat.) Summa Cum Laude, at the Earth and Environmental Sciences Department of the Ludwig-Maximilians-Universität München (LMU) Munich, Germany. https://edoc.ub.uni-muenchen.de/26744/7/Casas_Ramos_Ana_Silvia.pdf

2013-2015. Master in Geochemistry, (graduated with honors) at the Volcanology Department of the National Autonomous University of México (UNAM), México City, México.

2008-2012. Bachelor in Chemical Engineering, (1st Class Hons) at the Technological Institute of Tuxtla Gutiérrez (ITTG), Chiapas, México.



2015. CONACYT-DAAD (Mexican national council for science and technology-Deustcher Akademischer Austausch Dienst) Grant No. 409903

2013. CONACYT (Mexican national council for science and technology) Grant No. 367676

Research interests

  • Emerging technologies in geochemistry
  • Sulfur in the atmosphere
  • Mining and engineering
  • Solid-gas reactions in earth processes
  • Communication of natural hazards


  • Casas, A.S., Hornby, A., Poetsch, C., Cimarelli, C., Dingwell, D. 2021. A novel method for the quantitative morphometric characterization of soluble salts on volcanic ash. Bulletin of Volcanology. https://doi.org/84.10.1007/s00445-021-01519-3.
  • Wadsworth, F., Vasseur, J., Casas, A.S., Delmelle, P., Hess, K.-U., Ayris, P. Dingwell, D. 2020. A model for the kinetics of high temperature reactions between polydisperse volcanic ash and SO2 gas. American Mineralogist. https://doi.org/10.2138/am-2021-7691.
  • Maters, E.C., Cimarelli, C., Casas, A.S., Dingwell, D.B., Murray, B.J. 2020. Volcanic ash ice-nucleating activity can be enhanced or depressed by ash-gas interaction in the eruption plume, Earth and Planetary Science Letters,551,116587. https://doi.org/10.1016/j.epsl.2020.116587
  • Casas, A.S., Wadsworth, F.B., Ayris, P.M., Delmelle, P., Vasseur, J., Cimarelli, C., Dingwell, D.B. 2019. SO2 scrubbing during percolation through rhyolitic volcanic domes, Geochimica et Cosmochimica Acta, 257:150-162. https://doi.org/10.1016/j.gca.2019.04.013
  • Tomašek, I. Damby, D.E., Horwell, C.J., Ayris, P.M., Delmelle, P., Ottley, C.J., Cubillas, P., Casas, A.S., Bisig, C., Petri-Fink, A., Dingwell, D.B., Clift, M.J., Drasler, B., Rothen-Rutishauser, B. 2019. Assessment of the potential for in-plume sulphur dioxide gas-ash interactions to influence the respiratory toxicity of volcanic ash. Environmental Res.Volume 179, Part A 108798. https://doi.org/10.1016/j.envres.2019.108798.
  • Wadsworth, F., Unwin, H., Vasseur, J., Kennedy, B., Holzmueller, J., Scheu, B., Witcher, T., Adolf, J., Cáceres, F., Casas, A.S., Cigala, V., Clement, A., Colombier, M., Cronin, S., Cronin, M., Dingwell, D., Guimarães, L., Höltgen, L., Kueppers, U. & Weichselgartner, N. (2018). Trashcano: Developing a quantitative teaching tool to understand ballistics accelerated by explosive volcanic eruptions. 1. 107-126. 10.30909/vol.01.02.107126.
  • Mueller, S. B., Ayris, P. M., Wadsworth, F. B., Kueppers, U., Casas, A. S., Delmelle, P., Taddeucci, J., Jacob, M., & Dingwell, D. B. 2017. Ash aggregation enhanced by deposition and redistribution of salt on the surface of volcanic ash in eruption plumes. Scientific Reports, 7, 45762. https://doi.org/10.1038/srep45762.
  • Casas, A.S., Armienta, M.A., Ramos, S. 2016. Sulfur speciation with high performance liquid chromatography as a tool for El Chichón volcano, crater lake monitoring. Journal of South American Earth Sciences, 72, 241-249. https://doi.org/10.1016/j.jsames.2016.09.001.