Seismic expression of depositional elements associated with a strongly progradational shelf margin: northern Santos Basin, southeastern Brazil

Berton, Fábio; Vesely, Fernando Farias

doi:10.1590/2317-4889201620160031

Cited by 23 publications

(9 citation statements)

References 52 publications

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“…We delineate the clinothems (clinoform packages) using continuous high-impedance reflectors in a shelf-to-basinward direction similar to published approaches (Anell & Midtkandal, 2017;Gomis-Cartesio, Poyatos-Moré, Hodgson, & Flint, 2018). We utilize standard seismic facies analyses techniques (Berton & Vesely, 2016) and simple seismic stratigraphic terminology (Steel & Olsen, 2002;Vail, 1987) to interpret the clinothems, their architectural EAGE CLAIRMONT eT AL.…”

Section: Seismic Interpretation Methodsmentioning

confidence: 99%

“…We delineate the clinothems (clinoform packages) using continuous high‐impedance reflectors in a shelf‐to‐basinward direction similar to published approaches (Anell & Midtkandal, 2017; Gomis‐Cartesio, Poyatos‐Moré, Hodgson, & Flint, 2018). We utilize standard seismic facies analyses techniques (Berton & Vesely, 2016) and simple seismic stratigraphic terminology (Steel & Olsen, 2002; Vail, 1987) to interpret the clinothems, their architectural elements and the associated progradational system elements. A two‐dimensional (2D) seismic transect (CNL95B‐38) line is also included to indicate the regional extent of the studied GFF (see Figures 1a and 2a; Figure S1).…”

Section: Methodsmentioning

confidence: 99%

“…Several studies have analysed the intricate internal architecture, depositional sequences and potential economic significance of clinoforms (e.g. Berton, & Vesely, 2016; Hansen & Kamp, 2006; Salazar, Moscardelli, & Wood, 2016). However, the controls of inherited tectonic structures on clinoform architecture remain a longstanding problem.…”

Section: Introductionmentioning

confidence: 99%

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Controls of pre‐existing structures on clinoform architecture and the associated progradational system elements

et al. 2020

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There remains a limited understanding of the controls of pre-existing structures on the architecture of deep-water progradational sequences. In the Northern Taranaki Basin (NTB), New Zealand, Pliocene post-extensional sedimentary sequences overlie Miocene back-arc volcaniclastic units. We utilize seismic reflection datasets to investigate the relationships between the buried back-arc mound-shaped structures, 876 | EAGE CLAIRMONT eT AL. Highlights • Buried syn-extension volcanoes occur only in the north area. • Differential compaction of post-extension sequences are influenced by the paleovolcanoes. • Steep clinoform foreset slopes and wide incising channels in the north, but are absent in the south. • The later differential compaction influenced the basinward migration and geometry of continental slope. • Buried volcanoes in the north modulated the postextension sedimentation patterns. 878 | EAGE CLAIRMONT eT AL. F I G U R E 1 Location and the geologic setting of the study area. (a) Topographic map of northern New Zealand showing the Taranaki and Northland Basins, large faults and the Miocene volcanic fields of the Mohakatino Volcanic Belt (modified after Stagpoole & Funnell, 2001 and Johnston et al., 2010). The location of the primary study area (Nimitz 3D Seismic Survey) is shown in the white rectangle, together with a 2D transect line used to show the extent of interpreted geologic features, discussed throughout this expert. (b) Map of the Nimitz 3D seismic survey and location of the Korimako-1 well. (c) Generalized stratigraphic column of the upper fill of the Taranaki Basin (after Unkaracalar, 2018 and King & Thrasher, 1996), and generated wireline logs and synthetic model of the Korimako-1 well. The following stage abbreviations reflect the local geology of the

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Section: Seismic Interpretation Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

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Controls of pre‐existing structures on clinoform architecture and the associated progradational system elements

et al. 2020

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“…This leads to uncertainty in prediction of facies and thicknesses via seismic methods (Figure 1; e.g. Berton and Vesely 2016;Hossain 2019).…”

Section: Introductionmentioning

confidence: 99%

Halokinetic modulation of sedimentary thickness and architecture: a numerical modelling approach

Cumberpatch¹,

orcid²,

Finch³

et al. 2021

Preprint

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Subsurface salt flow can deform overlying strata and influence contemporaneous sedimentary processes. Studying salt-sediment interactions is challenging in the subsurface due to poor imaging adjacent to salt, and in the field due to the dissolution of halite. Discrete Element Modelling provides an efficient and inexpensive tool to model stratigraphy and deformation around salt structures, which is advantageous over other modelling techniques as it realistically recreates brittle processes such as faulting. Six 2D experiments were run representing 4.6 Myr (46,000 timesteps) to determine the effect of salt growth on syn-kinematic stratigraphy. Halokinetic deformation of stratigraphic architecture was assessed by varying sediment input rates (slow, intermediate, and fast), and increasing and decreasing them through time. Results show the realistic formation and evolution of salt-related faults which define a zone of halokinetic influence, ~3 times the width of the initial diapir. Outside of this, pre-and syn-kinematic stratigraphy are undeformed. Within this zone, syn-kinematic strata are initially isolated into primary salt withdrawal basins, onlapping and thinning towards the salt-cored high. In most models, syn-kinematic strata eventually thin across and cover the diapir roof. Thinning rates are up to six times greater within 350 metres of the diapir, compared to further afield, and typically decrease upwards (with time) and laterally (with distance) from the diapir. Outputs are compared to a subsurface example from the Pierce field, UK North Sea, which highlights the importance of considering local fluctuations in diapir rise rate. These can create stratigraphic architectures that may erroneously be interpreted to represent 'apparent' increases/decreases in sedimentation rate. Exposed examples, such as the Bakio diapir, northern Spain, can be used to make inferences of the expected depositional facies, below model resolution. Our models aid prediction of sedimentary unit thickness and thinning rates, and can be used to test interpretations arising from incomplete or low-resolution subsurface and outcrop data when building geological models for subsurface energy.

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“…The stratigraphic clinoform plays a significant role in the study of sequence stratigraphy as the key to some progradational and retrogradational pattern. It is important to consider that clinoforms in seismic data are depositional forms with dimensions varying from few hundreds of meters to several kilometers (Berton and Fernando, 2016). This research aims to find answers to these problems, which is seeking the status of the clinoform through stratigraphic sequence analysis in the discovery of Tertiary play.…”

Section: Introductionmentioning

confidence: 99%

Tertiary Sequence Stratigraphy of Bird Head Area, Eastern Indonesia

Alam

Setiadi

2019

Indonesian J. Geosci.

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A long depositional period of Papua limestone called Kais Formation, which is overlain by clastic sediments of Steenkool Formation, reflects an interesting stratigraphic architecture in the West Papua region. Using seismic stratigraphic method of five stacking patterns, forestepping, downstepping, upstepping, backstepping, and seismic facies (parallel, prograding clinoform, channel fill, mounded) have been observed. Chronostratigraphic reconstruction was completed to figure out the depositional units in space and time. This study reveals the lowstand deposit during Early to Middle Eocene (LST), transgressive-highstand carbonate deposit during Middle Eocene to Middle Oligocene, and transgressive-highstand silisiclastic (TST-HST) deposit during Middle Miocene-Late Pliocene.

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Seismic expression of depositional elements associated with a strongly progradational shelf margin: northern Santos Basin, southeastern Brazil

Cited by 23 publications

References 52 publications

Controls of pre‐existing structures on clinoform architecture and the associated progradational system elements

Controls of pre‐existing structures on clinoform architecture and the associated progradational system elements

Halokinetic modulation of sedimentary thickness and architecture: a numerical modelling approach

Tertiary Sequence Stratigraphy of Bird Head Area, Eastern Indonesia

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