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dc.contributor.author
Chen, Chia-Yu
dc.contributor.author
Willett, Sean D.
dc.contributor.author
Christl, Marcus
dc.contributor.author
Shyu, J. Bruce H.
dc.date.accessioned
2021-03-23T11:30:53Z
dc.date.available
2021-03-23T03:59:40Z
dc.date.available
2021-03-23T11:30:53Z
dc.date.issued
2021-05-15
dc.identifier.issn
0012-821X
dc.identifier.issn
1385-013X
dc.identifier.other
10.1016/j.epsl.2021.116874
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/475846
dc.description.abstract
The southern Central Range of Taiwan is in an early stage of orogeny and the landscape has not yet reached a steady state. To reveal the nature of the transient landscape and its evolution towards a steady state during orogeny, we conducted an in-situ 10Be cosmogenic nuclide study together with geomorphic analyses to characterize the spatial pattern of erosion rate at the scale of individual catchments. Sediment samples were collected at outlets of major basins, and within nested sub-basins. Basin-wide erosion rates were estimated from 10Be concentrations and basin mean 10Be production rates. The erosion rates of major basins show a northward increasing trend, which is consistent with the pattern of mean basin channel steepness, reflecting the early stage of orogeny and indicating that the landscape is evolving in response to tectonic forcing. However, nested samples reveal significant spatial variability in erosion rate at the sub-basin scale. These spatial variations are consistent with predictions of divide motion from χ analysis and other geomorphic metrics including cross-divide asymmetry. These suggest that the main divide is moving towards the west in southernmost Taiwan. We also found evidence of internal basin reorganization with several cases of growing basins at the expense of neighboring basins. These findings imply that even though tectonic forcing dominates the large-scale patterns, basin reorganization is a significant process affecting spatial patterns of erosion rate at the smaller scale, so that topographic steady state is likely to be found only for the largest characteristics of the landscape. © 2021 Elsevier
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
landscape evolution
en_US
dc.subject
erosion
en_US
dc.subject
in-situ 10Be
en_US
dc.subject
χ analysis
en_US
dc.subject
divide migration
en_US
dc.subject
Taiwan
en_US
dc.title
Drainage basin dynamics during the transition from early to mature orogeny in Southern Taiwan
en_US
dc.type
Journal Article
dc.date.published
2021-03-18
ethz.journal.title
Earth and Planetary Science Letters
ethz.journal.volume
562
en_US
ethz.journal.abbreviated
Earth Planet. Sci. Lett.
ethz.pages.start
116874
en_US
ethz.size
14 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03754 - Willett, Sean / Willett, Sean
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::08619 - Labor für Ionenstrahlphysik (LIP) / Laboratory of Ion Beam Physics (LIP)
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03754 - Willett, Sean / Willett, Sean
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02532 - Institut für Teilchen- und Astrophysik / Inst. Particle Physics and Astrophysics::08619 - Labor für Ionenstrahlphysik (LIP) / Laboratory of Ion Beam Physics (LIP)
ethz.date.deposited
2021-03-23T03:59:49Z
ethz.source
SCOPUS
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-03-23T11:31:24Z
ethz.rosetta.lastUpdated
2022-03-29T05:56:26Z
ethz.rosetta.versionExported
true
ethz.COinS
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