Figure 2. Initial model and modeling results. (a) Initial model
setup with model geometry, layer characteristics, and thermal
configuration. (b) Three cases show different results: no subduction
(Experiment 5); subducted slab did not reach a depth of 260 km within 10
myr (Experiment 7); subduction depth of 260 km within 10 myr (Experiment
6). (c) Variation of trench retreat velocities with time for experiments
with different mechanism (Density of continental lithospheric mantle
=3275 kg/m3; Ocean-continent transition angle=30°).
(d) Trench retreat velocity of the coupled model with depth 660 km, 400
km, 350 km, 300 km, 250 km, 200km. West, Centre, East indicate the
trench retreat velocity on the western side, centre and eastern side of
Celebes Sea, respectively.
Table1. Parameters and Descriptions of Numerical Experiments