In 2007 Daniel Gregory graduated with an honours degree in geology from the University of British Columbia. After which he worked as a field geologist exploring for a wide variety of different mineral deposit types, including stratiform Ni-Mo mineralization, in the Yukon Territory, Canada. In 2010 he started his PhD in economic geology and geochemistry at the University of Tasmania. During the course of his dissertation he investigated three different questions regarding pyrite chemistry: how are trace elements incorporated into pyrite, can pyrite trace element chemistry be used to infer the chemistry of ancient oceans, and can sedimentary pyrite be a major source of gold in Archean lode gold deposits?
After his PhD research Daniel worked as a post-doctoral researcher at CODES. In this work he continued to investigate pyrite chemistry and how it could be used to interpret paleo-ocean chemistry but also developed new research interests. These included using in situ analyses of different minerals (magnetite, pyrite, chlorite, titanite, hematite) coupled with machine learning techniques to both identify ore deposit style and to vector towards economic mineralization. In 2015 he started a post-doctoral position to work with Tim Lyons at UCR in the department of Earth Sciences. During his post doc he investigated what factors affect the trace element content of sedimentary pyrite and how trace elements are held in pyrite using nano-scale analytical techniques. In August 2018 he joined the Earth Sciences department at the University of Toronto as an Economic Geologist. Here he continues to research trace element content of pyrite, utilizing a number of techniques including atom probe tomography, transmission electron microscopy, XANES, XAFS, and LA-ICPMS to better understand how trace elements are incorporated into pyrite.