A review of techniques for the estimation of magnitude and timing of exhumation in offshore basins

Corcoran, D. V.; Doré, A. G.

doi:10.1016/j.earscirev.2005.05.003

Cited by 87 publications

(148 citation statements)

References 50 publications

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“…The term compaction refers to the three-dimensional reduction in sediment volume which occurs as a result of mechanical and thermochemical processes during burial (Giles et al 1998;Corcoran & Doré 2005). Compaction is generally expressed by the reduction of porosity with burial depth, although it is important to note that porosity reduction can also be caused by increases in solid volume (i.e.…”

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

“…local estimates for an individual well or borehole) of 6 vertical rock displacement relative to a specified frame of reference (Corcoran & Doré 2005). In this study the main frames of reference used to estimate exhumation are thermal (e.g.…”

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

“…Corcoran & Doré 2005), AFTA is perhaps the most useful because it can provide an independent estimate of the time at which a rock sample began to cool from its maximum palaeotemperature, or a subsequent palaeotemperature peak. If the cooling can be attributed to exhumation AFTA can consequently be used to constrain the timing of the onset of exhumation .…”

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

“…one in which the entire succession is presently at its maximum burial depth, and pressure is hydrostatic (Japsen et al 2002)). This is usually constructed from 'normally buried', unexhumed parts of a basin, or if the entire basin has been affected by exhumation, then a reference trend from a different, unexhumed basin can be used, as long as the reference trend has been constructed for a sufficiently similar lithology (Corcoran & Doré 2005). Sedimentary successions in exhumed basins will exhibit anomalously low porosities with respect to their present-day burial depth.…”

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

“…8 All techniques available for the estimation of exhumation in sedimentary basins are subject to various uncertainties (Corcoran & Doré 2005), that are magnified in regions such as the Irish Sea basin system which have experienced complex geological histories characterised by repeated cycles of burial and exhumation Holford et al 2005b). The diverse approach adopted in this study, whereby both palaeothermal and compactional proxies are used to reconstruct former burial depths and integrated with seismic data, has the advantage of improving the precision of estimates of the timing and magnitude of exhumation, and, if the estimates from the independent techniques show a high degree of consistency, this serves to validate the use of methods such as AFTA, VR and compaction analyses as valuable tools for reconstructing the burial and exhumation histories of sedimentary basins.…”

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

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Evidence for kilometre-scale Neogene exhumation driven by compressional deformation in the Irish Sea basin system

Holford

Green²,

Turner

et al. 2008

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Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

Section: Methods Used To Reconstruct Magnitudes and Timing Of Exhumationmentioning

confidence: 99%

See 3 more Smart Citations

Evidence for kilometre-scale Neogene exhumation driven by compressional deformation in the Irish Sea basin system

Holford

Green²,

Turner

et al. 2008

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The stratigraphic record of prebreakup geodynamics: Evidence from the Barrow Delta, offshore Northwest Australia

et al. 2016

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The structural and stratigraphic evolution of rift basins and passive margins has been widely studied, with many analyses demonstrating that delta systems can provide important records of postrift geodynamic processes. However, the apparent lack of ancient synbreakup delta systems and the paucity of seismic imaging across continent‐ocean boundaries mean that the transition from continental rifting to oceanic spreading remains poorly understood. The Early Cretaceous Barrow Group of the North Carnarvon Basin, offshore NW Australia, was a major deltaic system that formed during the latter stages of continental rifting and represents a rich sedimentary archive, documenting uplift, subsidence, and erosion of the margin. We use a regional database of 2‐D and 3‐D seismic and well data to constrain the internal architecture of the Barrow Group. Our results highlight three major depocenters: the Exmouth and Barrow subbasins and southern Exmouth Plateau. Overcompaction of pre‐Cretaceous sedimentary rocks in the South Carnarvon Basin, and pervasive reworking of Permian and Triassic palynomorphs in the offshore Barrow Group, suggests that the onshore South Carnarvon Basin originally contained a thicker sedimentary succession, which was uplifted and eroded prior to breakup. Backstripping of sedimentary successions encountered in wells in the Exmouth Plateau depocenter indicates that anomalously rapid tectonic subsidence (≤0.24 mm yr−1) accommodated Barrow Group deposition, despite evidence for minimal, contemporaneous upper crustal extension. Our results suggest that classic models of uniform extension cannot account for the observations of uplift and subsidence in the North Carnarvon Basin and may indicate a period of depth‐dependent extension or dynamic topography preceding breakup.

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Post‐Rift Deformation of the North East and South Atlantic Margins: Are “Passive Margins” Really Passive?

Paton

2011

Tectonics of Sedimentary Basins

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A review of techniques for the estimation of magnitude and timing of exhumation in offshore basins

Cited by 87 publications

References 50 publications

Evidence for kilometre-scale Neogene exhumation driven by compressional deformation in the Irish Sea basin system

Evidence for kilometre-scale Neogene exhumation driven by compressional deformation in the Irish Sea basin system

The stratigraphic record of prebreakup geodynamics: Evidence from the Barrow Delta, offshore Northwest Australia

Post‐Rift Deformation of the North East and South Atlantic Margins: Are “Passive Margins” Really Passive?

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