Mandy Krebs, PhD. | DERTS Associates

I am studying diamonds from the Victor Mine, Finsch and Newlands kimberlites. Samples were provided by DeBeers and Graham Pearson. My analyses of ultra low abundances of trace elements indicate that the diamond forming fluid is similar for gem and fibrous diamonds.

Mandy successfully defended her Ph.D. in Spring 2018.

After completing her Postdoctoral Research Fellowship at the Gemmoligical Institute of America, Mandy is currently a Postdoctoral research fellow at the University of Alberta in the Faculty iof Agricultural, Life and Environmental Sciences

Publications:

Krebs, M.Y., Hardman, M.F., Pearson, D.G., Luo, Y., Fagan, A.J., Sarkar, C. (2020) An Evaluation of the potential for determination of the geographic origin of ruby and sapphire using an expanded trace element suite plus Sr-Pb isotope compositions.   Minerals, 10, 447 https://doi.org/10.3390/min10050447

Krebs, M.Y., Pearson, D.G., Fagan, A.J., Bussweiler, Y., Sarkar, C. (2019) The application of trace elements and Sr–Pb isotopes to dating and tracing ruby formation: The Aappaluttoq deposit, SW Greenland. Chemical Geology, V 523 p. 42-58

Krebs M.Y., (2018) Impurities and defects in, and isotope compositions of, gemstones. PhD. Thesis University of Alberta https://doi.org/10.7939/R3CF9JN5Q

Krebs M.Y., Pearson D.G., Stachel T., Laiginhas F., Woodland S., Chinn I., Kong J. (2018) A common parentage - Low abundance trace element data of gem diamonds reveals similar fluids to fibrous diamonds. Lithos, 324-325, 356-370 https://doi.org/10.1016/j.lithos.2018.11.025