Tiago Felipe Arruda Maia

@ufam.edu.br

Geoscience department
Universidade Federal do Amazonas

Tiago Felipe Arruda Maia


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https://researchid.co/tiagotmaia

RESEARCH, TEACHING, or OTHER INTERESTS

Geology
2

Scopus Publications

Scopus Publications

  • The role of banded iron formations as a source of sulfur and semimetals in komatiite-associated Ni-Cu-PGE deposits: Example from the Fortaleza de Minas deposit, Brazil
    Tiago Felipe Arruda Maia, Cesar Fonseca Ferreira Filho
    Journal of South American Earth Sciences, 2025
  • Erosion of an active fault scarp leads to drainage capture in the Amazon region, Brazil
    Pedro Val, Clauzionor Silva, David Harbor, Norberto Morales, Felipe Amaral, et al.
    Earth Surface Processes and Landforms, 2014
    Far from the continental margin, drainage basins in Central Amazonia should be in topographic steady state; but they are not. Abandoned remnant fluvial valleys up to hundreds of square kilometers in size are observed throughout Amazonia, and are evidence of significant landscape reorganization. While major Late Miocene drainage shifts occurred due to initiation of the transcontinental Amazon River, local landscape change has remained active until today. Driven either by dynamic topography, tectonism, and/or climatic fluctuations, drainage captures in Amazonia provide a natural experiment for assessing the geomorphic response of low‐slope basins to sudden, capture related base‐level falls. This paper evaluates the timing of geomorphic change by examining a drainage capture event across the Baependi fault scarp involving the Cuieiras and Tarumã‐Mirim River basins northwest of the city of Manaus in Brazil. A system of capture‐related knickpoints was generated by base‐level fall following drainage capture; through numerical modeling of their initiation and propagation, the capture event is inferred to have occurred between the middle and late Pleistocene, consistent with other studies of landscape change in surrounding areas. In low‐slope settings like the Amazon River basin, base‐level fall can increase erosion rates by more than an order of magnitude, and moderate to large river basins can respond to episodes of base‐level fall over timescales of tens to hundreds of thousands of years. Copyright © 2013 John Wiley & Sons, Ltd.