Our Vision
We believe that innovation is key to driving success and unlocking new opportunities.
Our philosophy is to be at the forefront of this innovation, constantly pushing the boundaries of what’s possible through advanced research, cutting-edge technology, and creative problem-solving.
We envision a future where our solutions continue to accelerate progress in the mining industry.
Our Story
Vision Geochemistry Ltd. is a private geochemical research & consulting company located in Sudbury, Ontario, Canada. Our foundation is deeply rooted in the mining industry.
We’re committed to discovering critical metals for the future, while pioneering sustainable practices that ensure responsible mining.
Through innovation and collaboration, we drive towards a more prosperous and environmentally conscious mining sector.
Experienced Leadership
Dr. Neal Sullivan is a geochemist with over a decade of experience throughout the fields of research and applied geochemistry. He is the founding President & Principal Geochemist of Vision Geochemistry Ltd., an advanced geochemical research & consulting company, specialized for all aspects of the mining industry.
His exploration geochemistry expertise focuses on the use of modern and novel geochemistry techniques to drive mineral targeting. Dr. Sullivan supports exploration companies through regional scale target generation, optimizing property-scale geochemical survey designs, analytical QA/QC, exploratory data analysis (EDA) and data interpretation.
With respect to environmental geochemistry, his expertise involves characterizing, modelling, and predicting the geochemical transport of metals during rock-water interaction. Dr. Sullivan has led and supervised numerous metal leaching and acid rock drainage (ML/ARD) and neutral mine drainage (NMD) geochemical investigations performed to characterize waste rock, ore, tailings, and overburden/soil.
His research, primarily focused on platinum-group element (PGE) and gold mineralization in magmatic-hydrothermal ore systems, has been presented in several peer-reviewed journal publications, including Geochimica et Cosmochimica Acta, Mineralium Deposita and Applied Geochemistry.
Dr. Sullivan holds a Ph.D. in Geochemistry from the University of Toronto and is a registered Professional Geoscientist (P.Geo.) in Ontario and Québec.
Neal Sullivan, Ph.D., P.Geo.
President & Principal Geochemist
Publications
Wang, T., Fu, S., Sullivan, N.A., Lan, J. and Wei, L. “Deciphering the ore-forming process of Sb-W deposits through scheelite and stibnite trace element geochemistry.” Journal of Geochemical Exploration; 257 (2023).
Sullivan, N.A., Zajacz, Z., Brenan, J.M. and Tsay, A. “The solubility of platinum in magmatic brines: Insights into the mobility of PGE in ore-forming environments.” Geochimica et Cosmochimica Acta; 316 (2022): p. 253-272.
Sullivan, N.A., Zajacz, Z., Brenan, J.M., Hinde, J.C., Tsay, A. and Yin, Y. “The solubility of gold and palladium in magmatic brines: Implications for PGE enrichment in mafic-ultramafic and porphyry environments.” Geochimica et Cosmochimica Acta; 316 (2022): p. 230-252.
Sullivan, N.A. “Mobilization of platinum, palladium and gold by magmatic brines: An experimental study.” Ph.D. thesis, University of Toronto (2020).
Fu, S., Hu, R., Bi, X., Sullivan, N.A., Yan, J. and Mi, X. “Substitution mechanism and implications for the genesis of Sb deposits in southern China.” Applied Geochemistry; 118 (2020).
Sullivan, N.A., Zajacz, Z., and Brenan, J.M. “Mobilization of platinum by high-temperature orthomagmatic brines.” Presented and published at the 2019 GAC-MAC-IAH Conference, May 12-15, 2019, Quebec City, Quebec, Canada.
Fu, S., Hu, R., Yin, R., Yan, J., Mi, X., Song, Z. and Sullivan, N.A. “Mercury and in situ sulfur isotopes as constraints on the metal and sulfur sources for the world’s largest Sb deposit at Xikuangshan, southern China.” Mineralium Deposita; (2019): p. 1-12.
Sullivan, N.A., Zajacz, Z., and Brenan, J.M. “The solubility of Pd and Au in hydrous intermediate silicate melts: The effect of oxygen fugacity and the addition of Cl and S.” Geochimica et Cosmochimica Acta; 231 (2018): p. 15-29.
Canali, A.C., Brenan, J.M. and Sullivan, N.A. “Solubility of platinum-arsenide melt and sperrylite in synthetic basalt at 0.1 MPa and 1200 °C with implications for arsenic speciation and platinum sequestration in mafic igneous systems.” Geochimica et Cosmochimica Acta; 216 (2017): p. 153-168.
Sullivan N.A., Brenan, J.M. and Canali, A.C. “A synchrotron-based XANES investigation into the speciation of arsenic in basaltic system: Results from the arsenic L2,3-edge.” Presented and published at the 4th International Workshop on Highly Siderophile Element Geochemistry, July 10-14, 2016, Durham, England, U.K.
Sullivan, N.A., Zajacz, Z., and Brenan, J.M. “The solubility of Au and Pd in alkaline intermediate magmas at volatile saturation: The effect of oxygen fugacity and the addition of Cl and S.” Presented and published at the 2015 Reviews in Mineralogy and Geochemistry: Volume 81 Conference, December 11-13, 2015, San Diego, California, U.S.A.
Sullivan N.A. “An experimental investigation of the solubility of palladium and gold in evolved alkaline silicate melts and coexisting aqueous fluids: Insights into PGE-bearing porphyry deposits.” M.Sc. thesis, University of Toronto (2015).
Sullivan N.A. “Distribution of PGE in sulfide droplets from the Noril’sk ore deposits, Russia: A focus on the ubiquitous enrichment of palladium in pentlandite.” B.Sc. (Hons.) thesis, Laurentian University (2014).