New insights into the tectono-stratigraphic evolution of the Malvinas Basin, offshore of the southernmost Argentinean continental margin

Baristeas, N.; Anka, Zahie; Primio, Rolando di; Rodriguez, J. F.; Marchal, Denis; Domínguez, Francina

doi:10.1016/j.tecto.2013.06.009

Cited by 38 publications

(34 citation statements)

References 23 publications

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“…The accumulation rate exceeded the rate of creation of accommodation space, leading to a shallower basin and sediment migration to the east. The immediate rock uplift and the lack of a steady state phase in well locations close to the orogenic belt can be explained by the absence of new created accommodation space (Naylor & Sinclair, ) maybe accompanied by a sea level drop induced by rock uplift (Baristeas et al ., ). The phases of basin inversion within the Austral Basin (Fig.…”

Section: Discussionmentioning

confidence: 97%

“…This is supported by Baristeas et al . (), assuming an early break‐up process between Patagonia, the Antarctic Peninsula, East Antarctica and the Falkland Plateau, affecting the Malvinas Basin.…”

Section: Discussionmentioning

confidence: 99%

“…() and Baristeas et al . () carried out a detailed seismo‐stratigraphic analysis with focus on the structural‐tectonic evolution, as well as the distribution of hydrocarbon leakage features (Baristeas et al ., ). Various researches (i.e.…”

Section: Introductionmentioning

confidence: 99%

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The tectono‐stratigraphic evolution of the Austral Basin and adjacent areas against the background of Andean tectonics, southern Argentina, South America

et al. 2015

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The Austral Basin (or Magallanes Basin) in southern Argentina is situated in a highly active tectonic zone. The openings of the South Atlantic and the Drake Passage to the east and south, active subduction in the west, and the related rise of the Andes have massively influenced the evolution of this area. In order to better understand the impacts of these tectonic events on basin formation to its present-day structure we analyzed 2D seismic reflection data covering about 95.000 km² on-and 115.000 km² offshore (Austral "Marina"

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Section: Discussionmentioning

confidence: 97%

Section: Discussionmentioning

confidence: 99%

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The tectono‐stratigraphic evolution of the Austral Basin and adjacent areas against the background of Andean tectonics, southern Argentina, South America

et al. 2015

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“…Extension at this point is depicted in the southern Cape and Argentine basins and farther south in the Outeniqua and Falkland Plateau basins. Although not shown, the Malvinas and North Falkland basins are also thought to have been active during this period, having commenced rifting in mid‐Jurassic times [ Richards and Fannin , ; Bransden et al ., ; Baristeas et al ., ]. Farther north, the opening of these basins and the ensuing early stages of seafloor spreading are accommodated by motion along the most southerly accommodation zones, in the Colorado Basin‐Macachín Trough (138–134 Ma) and Salado‐General Levalle basins (134–126 Ma).…”

Section: Description Of the New Animationmentioning

confidence: 99%

Constraining South Atlantic growth with seafloor spreading data

2014

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Recent models of South Atlantic opening history focus on early plate divergence by incorporating intracontinental deformation, which is poorly constrained. Aiming to avoid the uncertainties in this approach, we model the entire divergence history with a joint inversion for seafloor spreading data. For this history, the pre-Campanian motion parameters are the first to feature formal uncertainty estimates. We date the onset of spreading at 138 Ma, with movement along intracontinental accommodation zones leading to the assembly of South America by 123 Ma and Africa by 106 Ma. Part of the ridge in the Agulhas Basin jumped westward soon afterward toward the Bouvet plume, initiating the motion of a short-lived Malvinas Plate. The NE Georgia and Maud rises and Agulhas Plateau formed as a large igneous province over the plume. Farther north, part of the ridge jumped eastward toward the Tristan plume around 94-93 Ma but seems not to have resulted in independent plate motion. Our results show that the South Atlantic grew by diachronous breakup of continents on just two plates. Cretaceous intracontinental deformation in South America and Africa can be interpreted in terms of the accommodation of stress associated with northward propagation of this process. The pattern of accommodation is usually envisaged as focusing all of the strain in narrow belts. With our rotations, a commonly used set of such belts accounts instead for just 42-67% of the implied total strain. We suggest that the remainder was accommodated at all scales within the continental interiors and the extended continental margins.

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“…From the latest Miocene onwards, the Malvinas Basin mostly received sedimentary material transported through the overfilled Austral Basin, and in addition received sediments derived from the Fuegian Andes ( Fig. 1) (Baristeas et al, 2013, Sachse et al, 2015.…”

Section: Structure and Tectonic Evolutionmentioning

confidence: 99%

Burial, Temperature and Maturation History of the Austral and Western Malvinas Basins, Southern Argentina, Based on 3d Basin Modelling

Sachse

Anka

Littke

et al. 2016

Journal of Petroleum Geology

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New insights into the tectono-stratigraphic evolution of the Malvinas Basin, offshore of the southernmost Argentinean continental margin

Cited by 38 publications

References 23 publications

The tectono‐stratigraphic evolution of the Austral Basin and adjacent areas against the background of Andean tectonics, southern Argentina, South America

The tectono‐stratigraphic evolution of the Austral Basin and adjacent areas against the background of Andean tectonics, southern Argentina, South America

Constraining South Atlantic growth with seafloor spreading data

Burial, Temperature and Maturation History of the Austral and Western Malvinas Basins, Southern Argentina, Based on 3d Basin Modelling

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