Simultaneous mountain building in the Taiwan orogenic belt
2015
The obliquity of the arc-continent collision in Taiwan is thought to
have produced a southward-propagating orogenic system starting as early as 8 Ma.
We combine 62 new zircon fission-track ages with timing of rapid
subsidence in the foreland basin to identify the timing of
the onset of exhumation and orogenesis. The oldest completely reset zircon fission-track ages
and the onset of rapid tectonic subsidence in both the northern and southern parts of the foreland
basin are ca. 5–6 Ma. We propose that north-south rifting in the South China Sea created
a north-trending continental margin before the collision rather than the commonly assumed
northeast-trending margin. Consequently, both this north-trending continental margin and
the Luzon arc of the Philippine Sea plate were subparallel, resulting in an initial collision that
was simultaneous along strike.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
30
References
43
Citations
NaN
KQI