Mehta et al. (2025): Potential of various minerals and their biogeochemical implications for ocean alkalinity enhancement in the southeastern Arabian Sea – Preprint
Shreya Mehta, Jitender Kumar, Sipai Nazirahmed, Himanshu Saxena, Jyotiranjan S. Ray, Sanjeev Kumar, Indrani Karunasagar and Arvind Singh, IN: EGUsphere, https://doi.org/10.5194/egusphere-2025-3925
The authors contribute to ongoing research by examining the response of the ocean’s carbonate chemistry to the addition of various alkalinity feedstocks — including both naturally occurring and anthropogenically (industrially) produced minerals, along the southeastern coastal Arabian Sea. They tested the alkalinity (AT) generation potential and traced the associated changes in the carbonate chemistry speciations for three naturally occurring minerals: (i) olivine ((MgFe)₂SiO₄), (ii) kaolinite (Al₂Si₂O₅(OH)₄), and (iii) dolomite (CaMg(CO₃)₂), and for two anthropogenically produced minerals: (i) periclase (MgO) and (ii) hydrated lime (Ca(OH)₂) of two different mineral compositions, using 300 L mesocosms.