Andrew G Stack

Group Leader, Geochemistry & Interfacial Sciences

Andrew G. Stack focuses on understanding how minerals react with their surrounding solutions. He is the PI of the Basic Energy Sciences Geosciences project at ORNL, entitled "Atomic- to Pore-Scale Geochemical Processes."

Professional Activities and Service

Member, U.S. Department of Energy, Office of Science, Basic Energy Sciences Advisory Committee (2019-present)

Faculty Member, Bredesen Center for Interdisciplinary Research and Graduate Education, University Tennessee/Oak Ridge National Laboratory (2016-present)

Editorial Board Member, Geochemical Transactions (2013-present)

Member of ORNL Committees: Research Conflict of Interest Advisory Committee (2015-present); Laboratory Directed Research and Development Internal Review Committee, “Next-Generation Techniques and Methods for Neutron Sciences” (2015-2017); Center for Accelerated Materials Modeling Advisory Committee (2015-2016)

Past Division Chair for the Geochemistry Division of the American Chemical Society (2015), Division Chair (2014), Program Chair (2013), Program-Chair Elect (2012), Awards Committee Member (2016-2018).

Community Workshop Participation

Panelist and Liaison to the Workshop Chair for the Experts’ Workshop on Carbon Capture, Utilization and Storage for the Mission Innovation Challenge global initiative (2017)

Panelist for Department of Energy, Basic Energy Sciences workshop and contributor to factual document on Basic Research Needs for the Energy-Water Nexus (2017)

Panelist/Roundtable Expert for Department of Energy, Basic Energy Sciences workshops and contributor to report on Subsurface Technology and Engineering Research Program (SubTER) and a new Grand Challenge for Subsurface Science (2015)


Outstanding Contributions to Geosciences Research Award (2014). U.S. DOE Basic Energy Sciences, Geosciences ProgramAward for One of Top 14 Technical Presentations (out of > 300), Twelfth Annual Conference on Carbon Capture, Utilization & Sequestration. Pittsburgh, PA, May 13-16, 2013Profile featured at ORNL web-site: Part I, Part II and STEM Magazine (2015).Profile featured in American Chemical Society’s College-To-Career web-site.Finalist for Asylum Research AFM Image Contest