---

Identification of potential CO2 storage zones in the Deccan Volcanic Province using multi-criteria decision-making approaches.

Das D, Prakash G, Vedanti N, Mallik J.

JOURNAL OF CO2 UTILIZATION

https://doi.org/10.1016/j.jcou.2025.103257 

The work investigates the vast Deccan Basalt using GIS-based multi criteria decision making technique to identify suitable sites for future geological CO2storage (GCS) sites. It reveals the western part of the Deccan mainland, Saurashtra province in Gujarat, and Indore region of Madhya Pradesh as the most promising sites for GCS. The study also provides a first-order estimation of triggered seismicity risk by highlighting the critically stressed state of faults within the suitable regions. This underlines the need for more detailed investigations prior to any injection operations. By combining multiple geological and environmental factors using decision-making models, the research highlights areas that can safely store CO₂ for long periods, supporting climate-change mitigation efforts.

Fig: (a) Site suitability map of Deccan Trap using Fuzzy Analytical Hierarchy Process (b) fault slip tendency analysis result considering SHmax azimuth of 30oE and normal hydrostatic gradient.

---