Late Quaternary Shelf Margin Deltas, Northern Gulf of Mexico

Suter, John R.

doi:10.5724/gcs.03.23.0027

Cited by 39 publications

(58 citation statements)

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Section: Geological Settingmentioning

confidence: 99%

“…Sediment input to the outer shelf and continental slope has been strongly modulated by sea-level change (Suter and Berryhill, 1985). During periods of lowered sea-level, fluvial systems entrenched themselves as they prograded across the shelf and eventually deposited thick sediment packages, widespread shelf-edge deltas, and deepwater fans (Suter and Berryhill, 1985). In addition, the rapidly deposited deltas loaded the shelf margin, causing frequent shelf-edge failures that contributed large volumes of sediment to downslope depositional sites (Coleman et al, 1983).…”

Section: Geological Settingmentioning

confidence: 99%

See 1 more Smart Citation

Changing redox conditions at cold seeps as revealed by authigenic carbonates from Alaminos Canyon, northern Gulf of Mexico

et al. 2011

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Section: Geological Settingmentioning

confidence: 99%

Section: Geological Settingmentioning

confidence: 99%

Changing redox conditions at cold seeps as revealed by authigenic carbonates from Alaminos Canyon, northern Gulf of Mexico

et al. 2011

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“…During the depositional time of the Red Palaeosol parent material, from 80 to 55 ka, sand was deposited on the coastal plain of Israel in a thickness ranging from 2 to 40 m (Zilberman et al, 2007;Roskin et al, 2013), forming dunes and sand sheet complexes. Since stream energies were greater during periods of low sea levels, mainly due to higher gradients and incisions (Suter and Berryhill, 1985;Anderson et al, 1996;Blum and Tōrnqvist, 2000 and ref. therein), the streams limited sand deposition in their channels, consequently transporting the sand back to the coastline where it was deposited.…”

Section: Coastal Lowland and Coastal Cliff Chronostratigraphic Correlmentioning

confidence: 99%

New perspectives on coastal landscape reconstruction during the Late Quaternary: A test case from central Israel

Shtienberg

Dix

Roskin

et al. 2017

Palaeogeography, Palaeoclimatology, Palaeoecology

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The stratigraphic architecture of coastal plains is determined by the interactions between local (e.g. fluvial processes and topography), regional (e.g. climate) and global (e.g. sea level) forcing factors, primarily during the Late Quaternary Period. Detailed stratigraphic and sedimentological analyses of boreholes, cored between coastal ridges in the lowlands, coupled with optically stimulated luminescence (OSL) dating, and integrated with existing onshore and offshore databases, has enabled a 4-D reconstruction of the evolution of the coast of Israel during the last glacial-interglacial cycle. This model revealed that Nilotic-sourced littoral sand, intermittently transported inland by wind, has either been lithified into aeolianite or pedogenized into orange-brown palaeosol from about 100 ka to 8 ka. Dark silty clay wetlands were deposited between the aeolian coastal ridges adjacent to streams which cut the Israeli coastal plain and flow westward, from the Last Glacial Maximum until the onset of the Holocene. These units are topped by beach and aeolian quartz sand dated to 6.6-0.1 ka. Diachronous thicknesses and lithological dissimilarities were identified between the sections studied and previous reports on adjacent coastal aeolianite ridges. Streams were found to be a dominant control on the stratigraphical composition and related facies architecture due to fluvial-induced erosion. Consequently, the relief variations between the lowland and cliff controlled aeolian pedogenesis as well as alluvial processes from about 80 to 5 ka. Climate, mainly influenced by precipitation and dust input, induced pedogenic processes; while sea level lowstand during the Last Glacial Maximum is shown to have hindered sediment deposition in the shallow offshore, which in turn affected aeolian transport, reducing sediment accumulation on the palaeo-coastal plain. The palaeoenvironmental model presented in the current study serves as an example for understanding the evolution of similar low-latitude siliciclastic-rich low-gradient shelf-coastal areas during the last glacial-interglacial cycle. Furthermore, it demonstrates the influence of local to global forcing factors on these environments.

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“…Over the past two to three decades, studies carried out on active and passive margins demonstrated that the deposits of the continental shelves mostly consist of lowstand and transgressive systems tract deposits (Suter and Berryhill, 1985;Suter et al, 1987;Tesson et al, 1990Tesson et al, , 1993Saito, 1991;Okamura and Blum, 1993;Trincardi and Correggiari, 2000). It is argued that highstand deposits are rarely preserved on outer shelves; they commonly occur on the inner part of the basins and form thick wedges thinning significantly basinwards.…”

Section: Introductionmentioning

confidence: 99%

Forced regressive wedge in the Mesoproterozoic Koldaha Shale, Vindhyan basin, Son valley, central India

Samanta

Mukhopadhyay

Eriksson

2016

Marine and Petroleum Geology

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The present paper highlights the sequence development within the Mesoproterozoic Koldaha Shale Member of the Kheinjua Formation, Vindhyan Supergroup which records the occurrence of a forced regressive wedge and associated discontinuity surfaces at the base of the wedge. Nine lithofacies have been identified within the study area that are grouped into three lithofacies associations varying in depositional setting from outer shelf, through shorefaceforeshore-beach to continental braidplain. The outer shelf sediments are aggradational to slightly progradational representing highstand systems tract. The rapidly progradational, wedge-shaped shoreface to foreshore-beach succession occurs sharply or erosively above the outer shelf sediments and is bounded by a regressive surface of marine erosion (RSME) at the base and by a subaerial unconformity at the top. This, along with its downstepping trajectory, supports deposition of this sedimentary wedge during falling sea level. A laterally extensive soft sediment deformation zone occurs at the base of the wedge.The forced regressive wedge is incised by fluvial braidplain deposits that rest on an erosive surface representing a sequence boundary. The thin braidplain deposits are the product of aggradation during a subsequent early rise in relative sea level, and thus, they are inferred to represent a lowstand systems tract. The constituent architectural elements that characterize the braidplain deposits are downstream accretion elements and small channel elements. Further 1 landward, the base and top of the shoreface wedge merge to form an unconformity across deposits that rest directly on the outer shelf sediments. The identification of forced regressive wedges has significant economic importance in view of the potential occurrence of hydrocarbons within the Proterozoic formations.

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Late Quaternary Shelf Margin Deltas, Northern Gulf of Mexico

Cited by 39 publications

References 0 publications

Changing redox conditions at cold seeps as revealed by authigenic carbonates from Alaminos Canyon, northern Gulf of Mexico

Changing redox conditions at cold seeps as revealed by authigenic carbonates from Alaminos Canyon, northern Gulf of Mexico

New perspectives on coastal landscape reconstruction during the Late Quaternary: A test case from central Israel

Forced regressive wedge in the Mesoproterozoic Koldaha Shale, Vindhyan basin, Son valley, central India

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