Extremely rapid up-and-down motions of island arc crust during arc-continent collision
| dc.contributor.author | Lai, Larry Syu-Heng | |
| dc.contributor.author | Yen, Jiun-Yee | |
| dc.contributor.author | Dorsey, Rebecca J. | |
| dc.contributor.author | Horng, Chorng-Shern | |
| dc.contributor.author | Chi, Wen-Rong | |
| dc.contributor.author | Shea, Kai-Shuan | |
| dc.date.accessioned | 2022-05-03T00:46:42Z | |
| dc.date.available | 2022-05-03T00:46:42Z | |
| dc.date.issued | 2022-03 | |
| dc.description | 10 pages | en_US |
| dc.description.abstract | Mountain building and the rock cycle often involve large vertical crustal motions, but their rates and timescales in unmetamorphosed rocks remain poorly understood. We utilize high-resolution magneto-biostratigraphy and backstripping analysis of marine deposits in an active arc-continent suture zone of eastern Taiwan to document short cycles of vertical crustal oscillations. A basal unconformity formed on Miocene volcanic arc crust in an uplifting forebulge starting ~6 Ma, followed by rapid foredeep subsidence at 2.3–3.2 mm yr−1 (~3.4–0.5 Ma) in response to oceanward-migrating flexural wave. Since ~0.8–0.5 Ma, arc crust has undergone extremely rapid (~9.0–14.4 mm yr−1) uplift to form the modern Coastal Range during transpressional strain. The northern sector may have recently entered another phase of subsidence related to a subduction polarity reversal. These transient vertical crustal motions are under-detected by thermochronologic methods, but are likely characteristic of continental growth by arc accretion over geologic timescales. | en_US |
| dc.identifier.citation | Lai, L.SH., Dorsey, R.J., Horng, CS. et al. Extremely rapid up-and-down motions of island arc crust during arc-continent collision. Commun Earth Environ 3, 100 (2022). https://doi.org/10.1038/s43247-022-00429-2 | en_US |
| dc.identifier.uri | https://doi.org/10.1038/s43247-022-00429-2 | |
| dc.identifier.uri | https://hdl.handle.net/1794/27108 | |
| dc.language.iso | en | en_US |
| dc.publisher | Springer Nature | en_US |
| dc.rights | Creative Commons BY-NC-ND 4.0-US | en_US |
| dc.subject | Palaeomagnetism | en_US |
| dc.subject | Sedimentology | en_US |
| dc.subject | Tectonics | en_US |
| dc.subject | Stratigraphy | en_US |
| dc.title | Extremely rapid up-and-down motions of island arc crust during arc-continent collision | en_US |
| dc.type | Article | en_US |