Stephen Aja

Stephen Aja is a Professor in the Department of Earth and Environmental Sciences at the School of Natural and Behavioral Sciences, City University of New York. His office is located at 4223 Ingersoll Hall, and he can be contacted via phone (718.951.5416) or email. He teaches undergraduate courses including 'The Dynamic Earth' (1010) and 'Water Resources Management' (1060).

His educational background includes a B.Sc. (Hons) in Geology, M.Sc. in Industrial Mineralogy, and a Ph.D. in Geology from Washington State University (1989).

Professor Aja's research focuses on mineral thermodynamics, clay mineral stability, and geochemical processes. Key areas include:

• Thermodynamic modeling of clay mineral equilibria
• Experimental studies of chlorite and illite stability
• Geochemical behavior of minerals in hydrothermal systems
• Surface chemistry of clay-water interactions
• Solid solution modeling in mineral systems

His publications primarily explore mineral solubility, clay mineral thermodynamics, and sorption mechanisms, with recent work resolving fundamental questions about smectite and illite stability. Research consistently demonstrates advanced applications of thermodynamic principles to geological systems.

No scientific awards or honors are mentioned in the provided documentation.

No information is available regarding student advising, research grants, laboratory direction, or team collaborations.