Modelling Passive Margin Sequence Stratigraphy

Steckler, M. S.; Reynolds, David J.; Coakley, Bernard; Swift, Bree; Jarrard, Richard D.

doi:10.1002/9781444304015.ch2

Cited by 46 publications

(34 citation statements)

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“…This amount of topographic relief cannot be accounted for within time spans represented by sequences. Clinoform rollovers and continental shelf breaks may coincide spatially, but they are the result of different processes (Steckler et al, 1993).…”

Section: Current Stratigraphic Modelsmentioning

confidence: 99%

“…Both physical and numerical models predict the effects of these factors individually (Parker et al, 1986;Reynolds et al, 1991;Steckler et al, 1993;Niedoroda et al, 1995;Syvitski et al, 1999). However, the interactions among factors also exert significant control on the longterm record.…”

Section: Current Stratigraphic Modelsmentioning

confidence: 99%

“…4a-f ) (Steckler et al, 1993) that sequentially remove the accumulated effects of subsidence or deformation. The first step is to strip off all sediment above the horizon of interest (Fig.…”

Section: Backstrippingmentioning

confidence: 99%

“…Subsidence, compaction, sediment loading and tectonic activity have all deformed these sediments. Backstripping removes sediments layer by layer to restore the morphology of the surface (assumed to be a former seafloor), as well as the geometry of underlying surfaces (Steckler et al, 1988(Steckler et al, , 1993. The shape and gradient of the past continental shelf can then be estimated, and, in particular, the height of clinoforms can be determined.…”

Section: Reconstructing the Marginmentioning

confidence: 99%

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The Long‐Term Stratigraphic Record on Continental Margins

Mountain

Burger

Delius³

et al. 2007

Continental Margin Sedimentation

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LONG-TERM GOALS My goal within the EuroSTRATAFORM program is to understand the creation of the preserved stratigraphic record on continental shelves and slopes as the product of physical processes acting with spatial and temporal heterogeneities. I have been using numerical models to provide insight into the formation and preservation of stratigraphic sequences at margins. My goal has been to obtain a quantitative understanding of the interactions of environmental parameters and their influence on stratal architecture and facies distribution. I wish to be able decipher the stratigraphy on margins to read the geologic record of the past and predict future stratigraphy. OBJECTIVES EuroSTRATAFORM is an opportunity to extend stratigraphic model applicability to new margins and to expand the capabilities of our products. The Rhône and Adriatic margins are similar to the earlier field areas in that they are mid-latitude clastic margins, but the stratigraphy is highly affected by the 3D geometry of the basins. The forcing provided by these boundary conditions provide a challenge, but are also necessary for modeling realistic systems. My aim is to quantitatively determine the system response of margins to different forcing functions sufficiently to be able to both predict stratigraphy and invert observed sequence architecture for geologic history. APPROACH I have used numerical models as a tool to provide insight into the formation and preservation of stratigraphic sequences at continental margins. To study these margins I will apply a multi-pronged approach. Together with Italian and French colleagues, I have been modifying and apply our existing 2D stratigraphic models to serial sections of the two EuroSTRATAFORM margins. This will test the portability of the models. It will also aid in evaluating the relative along-and across-strike transport and tectonics, and their influences on sequence architecture. John Swenson, with assistance from Chris Paola, Juan Fedele, I and others are jointly developing a 3-D sequence stratigraphic model. Together, we will extend our time-averaged, moving-boundary model for continental-margin sedimentation with its coupling of multiple transport regimes from 2-D to 3-D. The advantage of this modeling approach is that it allows for a systematic exploration of the margin's response to variations in sea level, sediment supply, tectonic subsidence, and wave climate over longer timescales. I am providing flexural component and parameterizations for the field areas. I will also make use of 3D flexural modeling and backstripping being done for a separate project on the Gulf of Lion to recover 1

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Section: Current Stratigraphic Modelsmentioning

confidence: 99%

Section: Current Stratigraphic Modelsmentioning

confidence: 99%

Section: Backstrippingmentioning

confidence: 99%

Section: Reconstructing the Marginmentioning

confidence: 99%

See 2 more Smart Citations

The Long‐Term Stratigraphic Record on Continental Margins

Mountain

Burger

Delius³

et al. 2007

Continental Margin Sedimentation

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show abstract

“…tectonic movement, eustasy, and sediment supply and distribution) (Posamentier and Vail, 1988;van Wagoner et al, 1988;Steckler et al, 1993;Shanley and McCabe, 1994). Tectonic movement together with eustasy determines relative lake-level change, which determines the variation of accommodation available for sediment accumulation.…”

Section: The Role Of the Accommodation Zone In Stratal Architectural mentioning

confidence: 99%