Figure 4: The total sum of the dehydration gradient from the marine sediment layers and ocean crust (IMAGE)
Caption
The black box indicates the modelled area. The vertical sum of the dehydration gradient is only plotted for the region where the depth of the slab surface is shallower than the bottom of the model (200 km) and where the temperature is higher than 200 °C (for which phase diagram data exists). The white line indicates the area where low-frequency tectonic tremors occur, as shown in Figure 1.
Credit
Iwamoto, K., Suenaga, N. & Yoshioka, S. Relationship between tectonic tremors and 3-D distributions of thermal structure and dehydration in the Alaska subduction zone. Sci Rep 12, 6234 (2022). https://doi.org/10.1038/s41598-022-10113-2
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License
CC BY