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Progress in Earth and Planetary Science
Fig. 4 | Progress in Earth and Planetary Science

Fig. 4

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

Fig. 4

The result of EPMA element mapping focused on pseudotachylyte, blackened zone, and foliated cataclasite. a An open-polarized photomicrograph of a thin section including pseudotachylyte, blackened zone and foliated cataclasite within PSZ. Red square represents the area of EPMA element mapping. b Result of EPMA element mapping (Al, Ca, Fe, K, Mg, Na). The color bar in the upper part shows concentration. In pseudotachylyte, only Mg is concentrated compared to blackened zone and foliated cataclasite

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