Morphotectonic evidence from lateral propagation of an active frontal fold; Pakuashan anticline, foothills of Taiwan

Delcaillau, Bernard; Deffontaines, Benoı̂t; Floissac, L; Angelier, Jacques; Deramond, Julie; Souquet, Pierre Jean; Chu, Hao‐Tsu; Lee, J.F

doi:10.1016/s0169-555x(98)00020-8

Cited by 115 publications

(126 citation statements)

References 25 publications

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“…Such a geometry has already been proposed in the northern Taiwan Foothills [Suppe, 1986]. In addition, a quantitative geomorphology analysis [Delcaillau et al, 1998] demonstrated that the rate of uplift in this area remains larger than the rate of denudation, which is in agreement with a fault-propagation fold kinematic pattern. To summarize, these observations and comparisons demonstrate that along-strike structural contrasts are present from the southern to the northern segments of the study area, so that the whole structure cannot be regarded as cylindrical, even in the first approximation.…”

Section: Insights From Subsurface Datasupporting

confidence: 68%

Quaternary transfer faulting and belt front deformation at Pakuashan (western Taiwan)

Mouthereau¹,

Lacombe²,

Deffontaines³

et al. 1999

Tectonics

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Section: Insights From Subsurface Datasupporting

confidence: 68%

Quaternary transfer faulting and belt front deformation at Pakuashan (western Taiwan)

Mouthereau¹,

Lacombe²,

Deffontaines³

et al. 1999

Tectonics

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“…Each pixel of the output raster represents the hypsometric integral and surface roughness values for a 100-pixel (∼9 km) moving window ( Figure 4). The hypsometric integral is sensitive to elevated surfaces and poorly eroded scarps [20,24,27,75], while surface roughness increases with the dissection by the drainage network. In order to map simultaneously preserved and eroded portions of an elevated landscape, we implemented a new index (referred to as the "surface index", SI) in the TecDEM toolbox.…”

Section: Surface Analysesmentioning

confidence: 99%

“…However, results are difficult to interpret, as they point to broad domains that do not always coincide with mapped tectonic features. Both drainage network and surface analyses have been successfully used to evaluate active tectonics in areas subjected to high deformation rates (e.g., [16,[27][28][29]). However, only a few works were done in intra-plate settings or in areas with low deformation rates (e.g., [12,[30][31][32][33]).…”

Section: Introductionmentioning

confidence: 99%

DEM-Based Analysis of Interactions between Tectonics and Landscapes in the Ore Mountains and Eger Rift (East Germany and NW Czech Republic)

et al. 2014

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Tectonics modify the base-level of rivers and result in the progressive erosion of landscapes. We propose here a new method to classify landscapes according to their erosional stages. This method is based on the combination of two DEM-based geomorphic indices: the hypsometric integral, which highlights elevated surfaces, and surface roughness, which increases with the topographic elevation and the incision by the drainage network. The combination of these two indices allows one to produce a map of erosional discontinuities that can be easily compared with the known structural framework. In addition, this method can be easily implemented (e.g., in MATLAB) and provides a quick way to analyze regional-scale landscapes. We propose here an example of a region where this approach becomes extremely valuable: the Ore Mountains and adjacent regions. The lack of young stratigraphic markers prevents a detailed analysis of recent fault activity. However, discontinuities in mapped geomorphic indices coupled to the analysis of river longitudinal profiles suggest a tight relationship between erosional discontinuities and main tectonic lineaments.Remote Sens. 2014, 6 7972

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“…Topography and drainage patterns in regions of active deformation reveal aspects of faults and anticline growth (Tate et al, 2001;Medwedeff, 1992;Mueller and Talling, 1997;Delcaillau et al, 1998;Delcaillau, 2004;Burbank and Anderson, 2000;Husson and Mugnier, 2003;Sung and Chen, in press;Gupta and Ellis, 2004). The analysis of the relationships between active tectonics and surface processes/landforms reveals variations in the style of deformation and in the rate and direction of propagation of ridges.…”

Section: Introductionmentioning

confidence: 99%

Recent fold growth and drainage development: The Janauri and Chandigarh anticlines in the Siwalik foothills, northwest India

2006

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The active growth of a fault-and-thrust belt in frontal zones of Himalaya is a prominent topographical feature, extending 2500 km from Assam to Pakistan. In this paper, kinematical analysis of frontal anticlines and spatial mapping of active faults based on geomorphological features such as drainage pattern development, fault scarps and uplifted Quaternary alluvial fans are presented. We analyse the geomorphic and hydrographic expressions of the Chandigarh and the Janauri active anticlines in the NW India Siwaliks. To investigate the morphological scenario during the folding process, we used spatial imagery, geomorphometric parameters extracted from digital elevation models and fieldwork. Folding between the Beas and Sutlej Rivers gives clear geomorphological evidence of recent fold growth, presumably driven by movements of blind thrust faults. Structural style within the Janauri and Chandigarh anticlines is highly variable (fault-propagation folds, pop-up structures and transfer faults). The approach presented here involves analysis of topography and drainage incision of selected landforms to detect growth of active anticlines and transfer faults. Landforms that indicate active folding above a southwest-dipping frontal thrust and a northeastdipping back-thrust are described. Along-strike differences in ridge morphology are measured to describe the interaction of river channel patterns with folds and thrust faults and to define history of anticline growth. The evolution of the apparently continuous Janauri ridge has occurred by the coalescence of independent segments growing towards each other. By contrast, systematic drainage basin asymmetry shows that the Chandigarh anticline ridge has propagated laterally from NW to SE. D

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Morphotectonic evidence from lateral propagation of an active frontal fold; Pakuashan anticline, foothills of Taiwan

Cited by 115 publications

References 25 publications

Quaternary transfer faulting and belt front deformation at Pakuashan (western Taiwan)

Quaternary transfer faulting and belt front deformation at Pakuashan (western Taiwan)

DEM-Based Analysis of Interactions between Tectonics and Landscapes in the Ore Mountains and Eger Rift (East Germany and NW Czech Republic)

Recent fold growth and drainage development: The Janauri and Chandigarh anticlines in the Siwalik foothills, northwest India

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