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Fig. 4 | Earth, Planets and Space

Fig. 4

From: First report of (U–Th)/He thermochronometric data across Northeast Japan Arc: implications for the long-term inelastic deformation

Fig. 4

a Longitude versus (U–Th)/He age. The weighted mean ages ±95% confidence intervals are shown. The light pink bands indicate approximate range of timing of the three major recent uplift episodes of the NE Japan Arc in 12–9 Ma, 6.5–5 Ma, and after 3 Ma (e.g., Nakajima et al. 2006; Fujiwara et al. 2008; Moriya et al. 2008). b Longitude versus geothermal gradient and sample elevation. Geothermal gradient data of 37.5°N–38.5°N from Tanaka et al. (2004) are plotted. c Mean denudation rates calculated from AHe ages. Purpuric data shown with “?” indicate less reliable denudation rates which might reflect reheating related to magmatism; the computed denudation rates are thought to indicate the maximum value

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