Extended Data Fig. 8: Sum of cations as a function of the Re concentration of global and Himalayan rivers.

Literature data are from refs. 10,15,31,32,61,62 and are illustrated by the diamonds. Dashed lines show linear regression between the measured sum of cations and Re concentrations of all the rivers (black) and of the Himalayan rivers (blue). Circles display the measured mean sum of cations in the Narayani per monsoon season as a function of the estimated Re concentration using the linear correlation of Himalayan rivers.