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CEW-RI Weekly Seminar on March 17, 2021 by Dr. Arshad

17-Mar-2021 to 17-Mar-2021

Natural CO2 Sequestration by Ophiolite-Derived Carbonates from the Barzaman Formation, Oman: Evidence from the C-O Isotopic Investigation       

Date        : Wednesday, March 17,2021

Time       : 10:00AM – 10:30 AM

Location  : Online Zoom Room  

 

Speaker: Dr. Arshad Ali  

Earth Sciences Research Centre (ESRC) Sultan Qaboos University (SQU) The Sultanate of Oman

Abstract:

    

     The global carbon balance between emissions and sinks has been disturbed by the excessive use of fossil fuels with the onset of industrial revolution, triggering CO2 to rise from 277 ppm in 1750, to 405 ppm in 2017. Natural CO2 sequestration, by mineralization, is one of the potential methods for mitigating increasing levels of global CO2 emissions. It involves carbonate mineral precipitation via atmospheric CO2 uptake by alkaline-hyperalkaline waters. Oman Ophiolite produces high-pH waters characterized by continuous sequestration of atmospheric CO2 at the air-water interface. While natural sequestration faces the major criticism of being a slow process, it may serve as a potential tool for carbon capture and storage (CCS) technology. Isotopic modeling of carbonate rocks from the Barzaman Formation (Oman) revealed that a substantial amount of atmospheric CO2 has been stored in these rocks. In this seminar, discussion will be carried out on a preliminary dataset, a possible research strategy, and the potential of artificial CO2 sequestration.

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