Robuta

https://www.usgs.gov/publications/dioctahedral-smectite-reactions-elevated-temperatures-effects-k-availability-nak-ratio Dioctahedral smectite reactions at elevated temperatures: Effects of K-availability, Na/K ratio and... Hydrothermal experiments were conducted to measure the effects of K availability, Na/K ratio and ionic strength in chloride solutions on the rate and extent of...