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Andre Ellis - Research Overview



  • Office La Kretz 158
  • 323-343-2411
  • Isotope geochemistry and Low temperature geochemistry of redox active elements is a major component of my research interests.  The field of the so called non-traditional isotopes has exploded in recent years, especially with the relatively newer Multi-collector ICPMS instrumentation becoming common.   Along with collaborators Tom Johnson at Illinois and Tom Bullen at the USGS, I had worked on some of the early development of techniques related to measurements of chromium and selenium stable isotopes.

    Recent Projects

    Selenium Stable Isotopes in Southern California (Collaborative with Barry Hibbs-CSULA) - Sources, fate and transport of Se

    Jeff Langman (USGS-Albuquerque, NM): Doctoral Candidate
    Cross-formational flow – a multi-isotope case study using Sr and Boron Isotopes and traditional light stable H, O etc.

    Alejandro Villalobos-Aragon: Doctoral Candidate
    Developing Cr Stable isotopes: Fate and transport of Chromium using Cr stable isotopes: in columns and a field study in Leon Valley, Leon, Mexico.
    Chromium stable isotope fractionation during oxidation of Cr(III) by Pyrolusite.

    Melissa Carney: Geochemistry of central alaskan rivers and continental weathering

    Jeff Langman and Melissa Carney: Effects of saline injections: Modeling geochemical changes in the properties of formations and formation waters caused by saline injections in El Paso, TX

    Alfredo Ruiz: Groundwater flow in the Hueco and Mesilla Bolsons, El Paso, TX using Sr isotopes and multi-element geochemistry. 

    Xie Xianjun and Yanxin Wang: China University of Geosciences, Wuhan, China:

    * Sources, fate and transport of As in Datong, China.  

    Ma Teng and Yanxin Wang
    * Chromium contamination in Huangshi, near the Yangzte river < !-- content ends -->