Applications of synchrotron techniques in biogeochemical and geomicrobiological research

Synchrotron methods are useful for examining the chemistry, speciation and distribution of elements such as Fe and Mn within environmental samples. Techniques such as x-ray absorption spectroscopy (XAS), x-ray diffraction (XRD), and x-ray fluorescence (XRF) are routinely used at synchrotrons worldwide, by both academic and industrial users. It can be a challenge for potential users to identify where these methods will be useful to them. Here, I will present an overview of techniques available for geomicrobiologists at the Canadian Light Source (CLS). I will provide examples of the use of synchrotron tools in geomicrobiological projects, as well as examples of where CLS scientists have worked with mining companies to use these tools to address challenges in the mining industry. An overview of the CLS Green Mining Program will also be provided; our research group is conducting biogeochemical research that contributes to developing sustainable mining practices.