Hydrochemistry of the Hot Springs in Western Sichuan Province Related to the Wenchuan 8.0 Earthquake
Figure 5
Temporal variations of concentration of K+ and . Black squares: waters collected from the Guanding spring; black cycles: waters collected from the Longtougou spring; black triangles: waters collected from the Erdaoqiao spring; the dashed vertical line: the time of the occurrence of the Wenchuan earthquake.