TDWB_17_1

Experiment to explore shelf-edge deltas and coupled downslope submarine fan systems that experience changes in relative sea level. Stage 1 included construction of system with constant relative sea level, stage 2 captured system evolving under short relative sea level cycles with small magnitudes, stage 3 captured system evolving under a long relative sea level cycles with a large magnitude. Size and durations of relative sea level cycles were scaled to autogenic scales. Input flow was delivered with a flood cycle and input flow contained dissolved salt to promote plunging of turbidity currents at shelf-edge.本实验旨在探究受相对海平面变化调控的陆架边缘三角洲（shelf-edge delta）与耦合陆坡下坡海底扇系统。实验共分为三个阶段：第一阶段构建相对海平面恒定的该类系统；第二阶段捕捉相对海平面小幅短周期演化的系统过程；第三阶段捕捉相对海平面大幅长周期演化的系统过程。相对海平面周期的规模与时长均按自成因尺度（autogenic scale）进行缩放。实验以洪水周期为输入流体的供给周期，且输入流体中溶解有盐分，以促进陆架边缘处浊流（turbidity current）的潜没现象。