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Table 2 Comparison of trace element composition in Okinawa Trough, Guaymas Basin (Gamo 1995), Escanaba Trough (Campbell et al. 1994), and Nankai Trough (Nishio et al. 2015)

From: Postseismic fluid discharge chemically recorded in altered pseudotachylyte discovered from an ancient megasplay fault: an example from the Nobeoka Thrust in the Shimanto accretionary complex, SW Japan

Okinawa Trough Guaymas Basin Ridge Escanaba Trough Nankai Trough
Temperature (°C) (μmol/kg) 320 108–217 240
 Li 2500 1080 1268 168
 Rb 360 86 92.5 133
 Sr 94 253 209 39.8
 Cs 0.3 6.8