Seismic stratigraphic framework and depositional sequences in the Santos Basin, Brazil

Williams, Brian Glyn; Hubbard, Richard J.

doi:10.1016/0264-8172(84)90079-5

Cited by 27 publications

(7 citation statements)

References 6 publications

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“…In the Santos basin, the evidence of exhumation of the coastal mountains source area is (1) thick sequence of coarse siliciclastic sediments prograded outward during the Late Cretaceous, whereas finer grained sediments accumulated in the Paleogene (Williams and Hubbard 1984;Pereira and Macedo 1990); (2) shelf progradation driven by the rise of the highlands topography reversed the trend of rising base level (Modica and Brush 2004).…”

Section: Late Cretaceous (100-65 Ma)mentioning

confidence: 97%

Rift to post-rift evolution of a “passive” continental margin: the Ponta Grossa Arch, SE Brazil

Franco-Magalhães

Hackspacher

Glasmacher

et al. 2010

Int J Earth Sci (Geol Rundsch)

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Low-temperature thermochronology was applied at the Brazilian passive continental margin in order to understand and reconstruct the post-rift evolution since the break-up of southwestern Gondwana. Thermochronological data obtained from apatite fission-track analysis of Neoproterozoic metamorphic and Paleozoic to Mesozoic siliciclastic rocks as well as Mesozoic dikes and alkaline intrusions from the Ponta Grossa Arch provided ages between 66.2 (1.3) and 5.9 (0.8) Ma. These data clearly indicate a post-rift reactivation during Late Cretaceous and Paleogene times. Integrating the results of older thermochronological studies, the reactivation of the southeastern Brazilian margin could be described in three main phases related to the rift to post-rift evolution of SE Brazil. Furthermore, the spatial distribution of age data indicates the presence of two age groups: a NE age-group (NE of Curitiba), with ages around 20 Ma and a SW age-group (Curitiba and NW) with ages of around 50 Ma. The change of ages follows the NW-SE trending São Jerônimo-Curiúva fault zone that can be traced offshore into the southern end of the Santos basin. Within the Santos basin, this lineament ends up to the salt occurrence in the south and seams to play a major role in the structural evolution of the Santos basin and the Rio Grande Rise. Sedimentological studies in the Santos basin evidenced that the transport direction changed in Miocene from WNW to WNW/NNW. During the Oligocene and earlier, the sediments were transported mainly from southeastwards to the direction of the ''Curitiba area'' into the Santos basin. Within the Miocene, an additional transport direction from an area north of Curitiba developed.

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Section: Late Cretaceous (100-65 Ma)mentioning

confidence: 97%

Rift to post-rift evolution of a “passive” continental margin: the Ponta Grossa Arch, SE Brazil

Franco-Magalhães

Hackspacher

Glasmacher

et al. 2010

Int J Earth Sci (Geol Rundsch)

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“…The work area in the T area has two depressions and two uplifts on the plane, showing a double-layer fault structure in the vertical direction. The area can be divided into four central structural units from the coast towards the ocean: western uplift, central depression, eastern uplift, and eastern depression [41][42][43][44]. The pre-salt structure of the vertical basin is dominated by tilting fault blocks, grabens, and horsts.…”

Section: Target Overviewmentioning

confidence: 99%

Pre-Stack Seismic Data-Driven Pre-Salt Carbonate Reef Reservoirs Characterization Methods and Application

et al. 2021

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Carbonate reservoirs have significant reserves globally, but the substantial heterogeneity brings intractable difficulties to exploration. In the work area, the thick salt rock reduces the resolution of pre-salt seismic signals and increases the difficulty of reservoir characterization. Therefore, this paper proposes to utilize wavelet frequency decomposition technology to depict the seismic blank reflection area’s signal and improve the pre-salt signal’s resolution. The high-precision pre-stack inversion based on Bayesian theory makes full use of information from various angles and simultaneously inverts multiple elastic parameters, effectively depicting reservoirs with substantial heterogeneity. Integrating the high-precision inversion results and the Kuster-Toksöz model, a porosity prediction method is proposed. The inversion results are consistent with the drilling rock samples and well-logging porosity results. Moreover, the reef’s accumulation and growth, which conform to the geological information, proves the accuracy of the above methods. This paper also discusses the seismic reflection characteristics of reefs and the influence of different lithological reservoirs on the seismic waveform response characteristics through forward modeling, which better proves the rationality of porosity inversion results. It provides a new set of ideas for future pre-salt carbonate reef reservoirs’ prediction and characterization methods.

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“…The opening of the South Atlantic commenced during the Late Jurassic to Early Cretaceous, initiating in the south and progressively propagating northward (Le Pichon and Hayes, 1971;Asmus and Ponte, 1973;Rabinowitz and LaBrecque, 1979;Williams and Hubbard, 1984;Chang et al, 1992;Szatmari, 2000;Rodrigues et al, 2005), by which time South America and Africa had already pulled away from Antarctica (Boger, 2010). The basins which formed as the South Atlantic opened were initially filled by fluvio-deltaic sediments, above which the shales and evaporates that now form the source and seal of the petroleum deposits were deposited (Brito Neves, 2002).…”

Section: Introductionmentioning

confidence: 98%

Early Cretaceous ostracod biostratigraphy of eastern Brazil and western Africa: An overview

Poropat

Colin

2012

Gondwana Research

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Seismic stratigraphic framework and depositional sequences in the Santos Basin, Brazil

Cited by 27 publications

References 6 publications

Rift to post-rift evolution of a “passive” continental margin: the Ponta Grossa Arch, SE Brazil

Rift to post-rift evolution of a “passive” continental margin: the Ponta Grossa Arch, SE Brazil

Pre-Stack Seismic Data-Driven Pre-Salt Carbonate Reef Reservoirs Characterization Methods and Application

Early Cretaceous ostracod biostratigraphy of eastern Brazil and western Africa: An overview

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