Drainage reorganization during mountain building in the river system of the Eastern Cordillera of the Colombian Andes

Struth, Lucía; Babault, Julien; Teixell, Antonio

doi:10.1016/j.geomorph.2015.09.012

Cited by 33 publications

(60 citation statements)

References 82 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…We extend the Mx map for the Eastern Cordillera of Colombia of Struth et al . () that was limited to the area between 4°N and 5°30′N to between 4°N and 7°N. The Mx values have a similar distribution to the SSP, with higher values on the flanks and in the northern part of the Sogamoso basin than in the axial zone.…”

Section: Resultsmentioning

confidence: 97%

“…River profiles in χ space are shown in the Supplementary Data (SD2) and were partly published in Struth et al . ().…”

Section: Resultsmentioning

confidence: 97%

“…Struth et al . () argue that the Eastern Cordillera is experiencing fluvial drainage network reorganization by drainage divide migration. Longitudinal drainages created in the early stages of drainage developed paralleling the structural grain of the growing tectonic orogen.…”

Section: Geological Morphological and Climatological Settingmentioning

confidence: 99%

“…These domains are separated by what we refer to as the eastern and western main drainage divides. Recent studies have suggested that the increase of regional slopes due to progressive crustal thickening results in fluvial reorganization from longitudinal to transverse dominated drainages in the Eastern Cordillera (Babault et al ., ; Struth et al ., ). On the basis of a morphometric analysis, field observations and a summary of paleodrainage data, these studies conclude that drainage reorganization takes place by progressive drainage divide migration toward the axial zone of the orogen by a step‐by‐step series of river captures.…”

Section: Introductionmentioning

confidence: 97%

See 3 more Smart Citations

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and ¹⁰Be terrestrial cosmogenic nuclides

Struth

Teixell

Owen

et al. 2016

Earth Surf Processes Landf

Self Cite

View full text Add to dashboard Cite

Catchment‐wide erosion rates were defined using 10Be terrestrial cosmogenic nuclides for the Eastern Cordillera of the Colombian Andes to help determine the nature of drainage development and landscape evolution. The Eastern Cordillera, characterized by a smooth axial plateau bordered by steep flanks, has a mean erosion rate of 11 ± 1 mm/ka across the plateau and 70 ± 10 mm/ka on its flanks, with local high rates >400 mm/ka. The erosional contrast between the plateau and its flanks was produced by the increase in the orogen regional slope, derived from the progressive shortening and thickening of the Eastern Cordillera. The erosion rates together with digital topographic analysis show that the drainage network is dynamic and confirms the view that drainage divides in the Eastern Cordillera are migrating towards the interior of the mountain belt resulting in progressive drainage reorganization from longitudinal to transverse‐dominated rivers and areal reduction of the Sabana de Bogotá plateau. Copyright © 2016 John Wiley & Sons, Ltd.

show abstract

Section: Resultsmentioning

confidence: 97%

“…River profiles in χ space are shown in the Supplementary Data (SD2) and were partly published in Struth et al . ().…”

Section: Resultsmentioning

confidence: 97%

Section: Geological Morphological and Climatological Settingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

See 2 more Smart Citations

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and ¹⁰Be terrestrial cosmogenic nuclides

Struth

Teixell

Owen

et al. 2016

Earth Surf Processes Landf

Self Cite

View full text Add to dashboard Cite

show abstract

“…Planform drainage reorganization is a common phenomenon during mountain building; catchments grow in response to increasing range flank width in order to maintain optimal spacing of basin outlets (Hovius, ; Perron et al, , ). Additionally, regular transitions from fault‐controlled longitudinal drainage to regional slope‐controlled transverse drainage have been noted in a variety of orogenic settings, such as the northern Andes (Struth et al, ), Pyrenees (Babault et al, ), and Atlas Mountains (Babault et al, ). Drainage reorganization can also fundamentally control the production and preservation of topography; substantial migration of drainage divides (Bonnet, ), the development or excavation of internally drained basins (Sobel et al, ; Vacherat et al, ), the dissection of large plateaus (Giachetta & Willett, ), and the in situ formation of high‐elevation, low‐relief landscapes (Sinclair, ; Whipple et al, ; Yang et al, ) have all been attributed to planform changes in drainage networks and geometry.…”

Section: Introductionmentioning

confidence: 99%

Base Level and Lithologic Control of Drainage Reorganization in the Sierra de las Planchadas, NW Argentina

Seagren

Schoenbohm

2019

JGR Earth Surface

View full text Add to dashboard Cite

Planform drainage reorganization in catchments is a common response to changes in boundary conditions. Rivers reorganize through two predominant mechanisms: discrete stream capture events and progressive divide migration. Using general geomorphic observations, flow azimuth analysis, χ anomalies, local headwater relief, and the normalized steepness index (ksn), we examine drainage reorganization, its potential controls, and the response timescales for drainages in the Sierra de las Planchadas, NW Argentina. We additionally expand on the comparison of trunk and tributary ksn values as a potential tool for recognizing drainage reorganization. We identify three significant patterns of reorganization: (1) the migration of the main drainage divide (MDD) toward the hinterland, (2) capture of longitudinal drainages by transverse reaches, and (3) shrinking foreland catchments that will result in changes to basin outlet spacing. We determine that the migration of the MDD is due to local base level differences between the major range‐bounding basins, while more local patterns, such as the capture of longitudinal drainages, are the result of the distribution of erosionally resistant lithologies. We additionally assess the response timescales required for topologic changes to the drainage network, such as divide migration; we conclude that, as suggested by modeling studies, they are longer than the timescale required for channel profile adjustment.

show abstract

Quaternary drainage network reorganization in the Colombian Eastern Cordillera plateau

Struth

Giachetta

Willett

et al. 2020

Earth Surf Processes Landf

Self Cite

View full text Add to dashboard Cite

Dramatic drainage reorganization from initial longitudinal to transversal domains has occurred in the Eastern Cordillera of Colombia. We perform a regional analysis of drainage basin geometry and transformed river profiles based on the integral form of the slope‐area scaling, to investigate the dynamic state of drainage networks and to predict the degree of drainage reorganization in this region. We propose a new model of drainage rearrangement for the Eastern Cordillera, based on the analyses of knickpoint distribution, normalized river profiles, landforms characteristic of river capture, erosion rates and palaeodrainage data. We establish that the oldest longitudinal basin captured by the Magdalena River network was the Suárez Basin at ≈409 ka, inferring the timing of abandonment of a river terrace using in situ produced cosmogenic beryllium‐10 (10Be) depth profiles and providing a first estimation of incision rate of 0.07 mm/yr. We integrate published geochronologic data and interpret the last capture of the Sabana de Bogotá, providing a minimum age of the basin opening to the Magdalena drainage at ≈38 ka. Our results suggest that the Magdalena basin Increased its drainage area by integrating the closed basins from the western flank of the Eastern Cordillera. Our study also suggests that the Magdalena basin is an aggressor compared to the basins located in the eastern flank of the orogen and provides a framework for examining drainage reorganization within the Eastern Cordillera and in similar orogenic settings. The results improve our understanding of headward integration of closed basins across orogenic plateaux. © 2020 John Wiley & Sons, Ltd.

show abstract

Drainage reorganization during mountain building in the river system of the Eastern Cordillera of the Colombian Andes

Cited by 33 publications

References 82 publications

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and ¹⁰Be terrestrial cosmogenic nuclides

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and ¹⁰Be terrestrial cosmogenic nuclides

Base Level and Lithologic Control of Drainage Reorganization in the Sierra de las Planchadas, NW Argentina

Quaternary drainage network reorganization in the Colombian Eastern Cordillera plateau

Contact Info

Product

Resources

About

Drainage reorganization during mountain building in the river system of the Eastern Cordillera of the Colombian Andes

Cited by 33 publications

References 82 publications

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and 10Be terrestrial cosmogenic nuclides

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and 10Be terrestrial cosmogenic nuclides

Base Level and Lithologic Control of Drainage Reorganization in the Sierra de las Planchadas, NW Argentina

Quaternary drainage network reorganization in the Colombian Eastern Cordillera plateau

Contact Info

Product

Resources

About

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and ¹⁰Be terrestrial cosmogenic nuclides

Plateau reduction by drainage divide migration in the Eastern Cordillera of Colombia defined by morphometry and ¹⁰Be terrestrial cosmogenic nuclides