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Fig. 2 | Progress in Earth and Planetary Science

Fig. 2

From: Dynamic formation process of thick deformation zone on the shallow plate boundary fault of the Japan Trench: insight from analog experiments of half-graben subduction

Fig. 2

Outline of sandbox apparatus under initial conditions. a Diagram of our experimental apparatus. Dry sands were filled on the basement surface pasted by a Teflon sheet. The right wall was fixed, and the left side wall was displaced at a uniform speed (1 cm/min). The 2D deformation around the half-graben structure area was continuously recorded with a digital camera and analyzed to visualize the deformation, especially fault activity. b Photographs showing initial setup of the analog experiments for half-graben basement without trench-fill (EXP 2), and flat basement reference model (EXP 1)

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