2020
DOI: 10.1016/j.epsl.2020.116423
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Reappraisal of the relative importance of dynamic topography and Andean orogeny on Amazon landscape evolution

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Cited by 23 publications
(14 citation statements)
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“…So, too, did the plate sinking through the mantle, creating a smooth depression in the Earth's surface far above. When Sacek, Bicudo, and others included these dynamics in their models-published in 2019 and 2020-the simulations put this subsidence right under the western Amazon, forming a huge depression in the continent (13,14). This hollow could have flooded from the Caribbean, pouring in across an apron-shaped expanse of what is now parts of Colombia, Ecuador, Bolivia, Peru, and western Brazil, to form an inland sea between 25 and 17 million years ago.…”
Section: Shifting Tidesmentioning
confidence: 99%
“…So, too, did the plate sinking through the mantle, creating a smooth depression in the Earth's surface far above. When Sacek, Bicudo, and others included these dynamics in their models-published in 2019 and 2020-the simulations put this subsidence right under the western Amazon, forming a huge depression in the continent (13,14). This hollow could have flooded from the Caribbean, pouring in across an apron-shaped expanse of what is now parts of Colombia, Ecuador, Bolivia, Peru, and western Brazil, to form an inland sea between 25 and 17 million years ago.…”
Section: Shifting Tidesmentioning
confidence: 99%
“…Small amounts of surface uplift may be linked to dynamic topography underneath the plateau, although this observation is model dependent (indirectly shown in Bicudo et al, 2020). Furthermore, given the proximity to some of the thickest sections of the Amazon Sedimentary Basin (i.e.…”
Section: Discussionmentioning
confidence: 99%
“…In the Amazon region, the presence of knickpoints and other transient landscape features is commonly interpreted to reflect intraplate tectonism (Rossetti et al, 2015; Val et al, 2014), climate change (dos Santos Albuquerque et al, 2020; Irion et al, 2009; Pupim et al, 2019), and large‐scale continental tilting due to mantle and flexural warping of the surface (Bicudo et al, 2020; Sacek, 2014; Shephard et al, 2010). Though largely overlooked in the Amazon region, spatially variable bedrock lithology is known to cause long‐lasting river reorganizations in tectonically stable, post‐orogenic settings (e.g.…”
Section: Introductionmentioning
confidence: 99%
“…Late Miocene establishment of the modern Amazon River drainage could be a 694 consequence of those combined processes, triggered by an increased in Andean sediment 695 fluxes. But negative dynamic topography related to westward subducting slab dynamics under 696 the distal retro-foreland would still have been required to achieve the modern drainage 697 configuration (Shephard et al, 2010;Bicudo et al, 2020). 698…”
Section: Influence Of Mantle Lithospheric and Surface Processes On Se...mentioning
confidence: 99%