- Understanding the evolution of continental deformation zones relies on quantifying spatial and temporal changes in deformation rates of tectonic structures. Along the eastern boundary of the Pamir-Tian Shan collision zone, we constrain secular variations of rock uplift rates for a series of five Quaternary detachment- and fault-related folds from their initiation to the modern day. When combined with GPS data, decomposition of interferometric synthetic aperture radar time series constrains the spatial pattern of surface and rock uplift on the folds deforming at decadal rates of 1-5mm/yr. These data confirm the previously proposed basinward propagation of structures during the Quaternary. By fitting our geodetic rates and previously published geologic uplift rates with piecewise linear functions, we find that gradual rate changes over >100kyr can explain the interferometric synthetic aperture radar observations where changes in average uplift rates are greater than similar to 1 mm/yr among different time intervals (similar to 10(1),Understanding the evolution of continental deformation zones relies on quantifying spatial and temporal changes in deformation rates of tectonic structures. Along the eastern boundary of the Pamir-Tian Shan collision zone, we constrain secular variations of rock uplift rates for a series of five Quaternary detachment- and fault-related folds from their initiation to the modern day. When combined with GPS data, decomposition of interferometric synthetic aperture radar time series constrains the spatial pattern of surface and rock uplift on the folds deforming at decadal rates of 1-5mm/yr. These data confirm the previously proposed basinward propagation of structures during the Quaternary. By fitting our geodetic rates and previously published geologic uplift rates with piecewise linear functions, we find that gradual rate changes over >100kyr can explain the interferometric synthetic aperture radar observations where changes in average uplift rates are greater than similar to 1 mm/yr among different time intervals (similar to 10(1), 10(4-5), and 10(5-6) years).…
MetadatenAuthor details: | Aaron BufeORCiD, David P. S. Bekaert, Ekbal Hussain, Bodo BookhagenORCiDGND, Douglas W. BurbankORCiDGND, Jessica Ann Thompson JobeORCiD, Jie Chen, Tao Li, Langtao Liu, Weijun Gan |
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DOI: | https://doi.org/10.1002/2017GL073627 |
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ISSN: | 0094-8276 |
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ISSN: | 1944-8007 |
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Title of parent work (English): | Geophysical research letters |
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Publisher: | American Geophysical Union |
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Place of publishing: | Washington |
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Publication type: | Article |
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Language: | English |
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Year of first publication: | 2017 |
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Publication year: | 2017 |
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Release date: | 2020/04/20 |
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Tag: | InSAR; Tian Shan; continental neotectonics; folds; geologic versus geodetic rates; uplift rate changes |
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Volume: | 44 |
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Number of pages: | 11 |
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First page: | 10977 |
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Last Page: | 10987 |
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Funding institution: | DAAD; UCSB; National Science Foundation [1050070]; Jet Propulsion Laboratory, California Institute of Technology; National Aeronautics and Space Administration; [LED2016A05] |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Geowissenschaften |
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Peer review: | Referiert |
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Institution name at the time of the publication: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Erd- und Umweltwissenschaften |
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