George

George Jeff Onyango

Researcher, Geoscience

Geological CO2 storage · Basalt Geochemistry · Applied Geoconsulting

Welcome! I’m a geoscientist working at the intersection of geochemistry, hydrogeology, and applied exploration geophysics. My research focuses on the East African Rift Basalts and Proterozoic ophiolites, with particular emphasis on CO₂ mineralization in the Kenya Rift, and geological hydrogen in ophiolitic systems. I use numerical modelling and simulation to investigate these geological processes and their potential applications in climate resilience, carbon management, and clean energy.

Currently developing a formal reactive transport modeling framework — from 0-D kinetic batch simulations through 2-D transport — for CO₂–basalt interaction in the Kenya Rift.

Beyond my research work, I consult on applied geoscience projects across Africa, including geophysical mineral exploration surveys and hydrogeological modeling, and I'm interested in bridging rigorous geochemical modeling with practical decision-making for carbon storage and resource exploration in the region.

Interests

Education

MSc in Geoscience (In progress)
CO₂ mineralization in Kenya Rift basalts
Technical University of Kenya
BSc in Geology / Earth Science
University of Nairobi

Research

CO₂ Mineralization in Rift Basalts

Reactive transport modeling of CO₂–water–basalt interaction in the Kenya Rift, testing storage security of injected CO₂.

Evaluation fo Geopark in Homabay County, Kenya

Applying quantitative methods & qualitative methods to evaluate geosites in Homabay for development of geopark.

Assessment of Lake Victoria Shoreline Change

Application of GIS and remote sensing techniques to evaluate multidecadal shoreline change in Lake Victoria, Kenya.

Projects

Consulting

EvaGo Geoconsulting

Professional geoscience consulting practice on geophysical survey and hydrogeological (groundwater) services across Kenya, with a portfolio site built to showcase field-based project work.

Exploration

Rangwe Gold IP/ERT Survey — Homa Bay County

Technical geophysical report for a gold exploration targeting in the South Nyanza Gold Belt, using induced polarization and resistivity data to identify priority drilling zones.

Research

ICDP DeepCHB — Chew Bahir Basin, Ethiopia

Proposed contribution applying reactive transport and reaction-path modeling expertise to constrain diagenetic and authigenic mineral formation for paleoclimate proxy interpretation.

Training

Hydrogeological Modeling Workshop, Nairobi

Four-day training led by GEUS on AEM/TEM/ERT methods, QGIS integration, and 3D geological modeling for groundwater applications.

Contact

✉ gojeffonyango@gmail.com

Nairobi, Kenya