The use of apatite fission track thermochronology to constrain fault movements and sedimentary basin evolution in northeastern Brazil

Nóbrega, M.A. da; Sá, Jaziel Martins; Bezerra, Francisco H.R.; Neto, Júlio César Hadler; Iunes, P.J.; Guedes, S.; Sáenz, Carlos Alberto Tello; Hackspacher, Peter Christian; Lima-Filho, Francisco Pinheiro

doi:10.1016/j.radmeas.2004.12.006

Cited by 54 publications

(30 citation statements)

References 15 publications

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“…A good example of differential denudation occurred in northeastern Brazil. The fission-track study by Nóbrega et al (2005) indicates that a Neoproterozoic reactivated shear zone located ∼320 km northwest of the study area, the Portalegre fault, was reactivated since 140 Ma. This fault offset crustal blocks subjected to different thermal histories.…”

Section: Establishing the Research Frameworkmentioning

confidence: 97%

Late Pleistocene tectonic-geomorphological development within a passive margin — The Cariatá trough, northeastern Brazil

et al. 2008

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Section: Establishing the Research Frameworkmentioning

confidence: 97%

Late Pleistocene tectonic-geomorphological development within a passive margin — The Cariatá trough, northeastern Brazil

et al. 2008

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“…The intervening heating event was recorded between 140 and 45 Ma on the block west of the PSZ and 55 and 15 Ma on the block to the east, and is believed to reflect burial in the first case and Oligocene ('Macau') volcanism in the second (Nóbrega et al, 2005). In the Araripe area of southern Ceará, AFT research suggests ∼1.5 km of denudation having occurred in the last 30 Ma (Morais Neto et al, 2005Neto et al, -2006. According to Pessoa Neto (2003), such a recent stage of denudation would explain the siliciclastic influx observed in the Neogene sediments of the offshore Potiguar Basin.…”

Section: Thermochronological Studiesmentioning

confidence: 99%

Low post-Cenomanian denudation depths across the Brazilian Northeast: Implications for long-term landscape evolution at a transform continental margin

Peulvast¹,

Sales²,

Bétard³

et al. 2008

Global and Planetary Change

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“…5.3). Although important at regional scale and in spite of the Cretaceous reactivation of at least one of them (Portalegre shear zone) (Nóbrega et al 2005), these faults do not control important morphological features at the scarp or below, except for the water gap through which the Piranhas River crosses the EW alignment of buttes.…”

Section: Inland Scarps: Weak Evidence Of Neotectonicsmentioning

confidence: 99%

Late Cenozoic Evolution of Landforms: The Influence of Neotectonics and Climatic Changes

Peulvast

Bétard

2015

Landforms and Landscape Evolution of the Equatorial Margin of Northeast Brazil

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Forming a continuous clastic apron near the coast, the mainly Neogene Barreiras Formation records the last peak of erosion in the hinterland, which coincided with the onset of more arid climates at *13 Myear or earlier. Dissected pediments and sparse debris fans visible at the base of some escarpments suggest recent erosive activity and possible slope retreat during the Late Cenozoic. A study of landforms located near zones of seismotectonic activity indicates a possible, probably weak, contribution of neotectonics to the formation of a few high scarps. Many of them are mainly inherited landforms, initiated during the Early Cretaceous rifting or the later margin uplift, a situation which suggests long-term stability. Later on, except in high inner tablelands (Chapada do Araripe), only slight or local backwearing took place, associated with downwearing on low surfaces and pediments, probably in diachronic ways. The Neogene clastic sedimentation on piedmonts and coastal areas mainly reflects the occurrence of dry periods inducing widespread stripping of deep soil horizons and erosion of bare rock slopes and surfaces. Dissection stages occurred in periods of more humid climate and/or low sea level. Marks of strong recent or present activity are mainly registered in the rims of the Chapada do Araripe, owing to favorable structural, hydrogeological and climatic conditions. The moderate volumes of Neogene clastic sediments imply overall low uplift and erosion rates until the present, favorable to morphological and lithological resistance effects in the landscapes. However, slope instabilities are not uncommon, locally leading to well-characterized processes, landforms, and deposits of gullying and mass wasting. Therefore, hazards related to slope processes should not be neglected in large parts of the study area.

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The use of apatite fission track thermochronology to constrain fault movements and sedimentary basin evolution in northeastern Brazil

Cited by 54 publications

References 15 publications

Late Pleistocene tectonic-geomorphological development within a passive margin — The Cariatá trough, northeastern Brazil

Late Pleistocene tectonic-geomorphological development within a passive margin — The Cariatá trough, northeastern Brazil

Low post-Cenomanian denudation depths across the Brazilian Northeast: Implications for long-term landscape evolution at a transform continental margin

Late Cenozoic Evolution of Landforms: The Influence of Neotectonics and Climatic Changes

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