Fig. 14
From: Heat flow data and thermal structure in northeastern Japan
The depth of the 300 ℃, 400 ℃, and 450 ℃ (Model A + B). This study estimated depth profiles of 300 °C, 400 °C, and 450 °C (Model A + B). The depth values reaching each temperature obtained at each measurement point are interpolated by averaging filtering based on the nearest neighbor method. The grid size was set to 4 min, and the search area to 50 km. Based on the values of this grid, isobaths were described at 2.5 km intervals