Correlation between Back-arc Spreading Center and Volcanic Arc Location

The dataset includes the measurements of individual subduction zones defined in the convergence-parallel, trench-perpendicular, and spreading-parallel direction. Table B.3. Location of each trench, arc, and back-arc defined in the convergence-parallel direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). Table B.4. Location of each trench, arc, and back-arc defined in the trench-perpendicular direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). Table B.5. Location of each trench, arc, and back-arc defined in the spreading-parallel direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). TableS1. Location of each trench, arc, and back-arc defined in the convergence-parallel direction, and the corresponding distance from the trench to the arc (D_TA), subarc slab depth (H), and from the trench to the back-arc spreading center (D_TB). The slab dip is measured at 50km (Dip50), 100km (Dip100), and 200km (Dip200) and averaged from 0 to 50 km (Dip050), 0 to 100km (Dip0100), 0 to 200km (Dip0200), and 50 to 200km (Dip50200). TableS2. Location of each trench, arc, and back-arc defined in the trench-perpendicular direction, and the corresponding distance from the trench to the arc (D_TA), subarc slab depth (H), and from the trench to the back-arc spreading center (D_TB). The slab dip is measured at 50km (Dip50), 100km (Dip100), and 200km (Dip200) and averaged from 0 to 50 km (Dip050), 0 to 100km (Dip0100), 0 to 200km (Dip0200), and 50 to 200km (Dip50200).

本数据集包含各单个俯冲带的实测数据，测量方向分别为汇聚平行方向、海沟垂直方向与扩张平行方向。
表B.3：按汇聚平行方向定义的各海沟、弧及弧后区域的位置，以及对应海沟至弧的距离（D_TA）、弧至弧后扩张中心的距离（D_AB）、海沟至弧后扩张中心的距离（D_TB）。
表B.4：按海沟垂直方向定义的各海沟、弧及弧后区域的位置，以及对应海沟至弧的距离（D_TA）、弧至弧后扩张中心的距离（D_AB）、海沟至弧后扩张中心的距离（D_TB）。
表B.5：按扩张平行方向定义的各海沟、弧及弧后区域的位置，以及对应海沟至弧的距离（D_TA）、弧至弧后扩张中心的距离（D_AB）、海沟至弧后扩张中心的距离（D_TB）。
表S1：按汇聚平行方向定义的各海沟、弧及弧后区域的位置，以及对应海沟至弧的距离（D_TA）、弧下板块深度（H）、海沟至弧后扩张中心的距离（D_TB）。板块俯冲倾角分别在50km（Dip50）、100km（Dip100）及200km（Dip200）深度处实测，同时计算了0~50km（Dip050）、0~100km（Dip0100）、0~200km（Dip0200）以及50~200km（Dip50200）范围内的平均倾角。
表S2：按海沟垂直方向定义的各海沟、弧及弧后区域的位置，以及对应海沟至弧的距离（D_TA）、弧下板块深度（H）、海沟至弧后扩张中心的距离（D_TB）。板块俯冲倾角分别在50km（Dip50）、100km（Dip100）及200km（Dip200）深度处实测，同时计算了0~50km（Dip050）、0~100km（Dip0100）、0~200km（Dip0200）以及50~200km（Dip50200）范围内的平均倾角。