Sequence-stratigraphic significance of Miocene to Pliocene glauconite-rich layers, on- and offshore of the US Mid-Atlantic margin

Harris, L. C.; Whiting, Brian M.

doi:10.1016/s0037-0738(00)00017-8

Cited by 56 publications

(22 citation statements)

References 18 publications

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“…The comparatively high content of glauconite (3-17 wt%) detected by XRD in the sediment from all three cores gives evidence for mass flow deposition events. In general, glauconite in recent sediment is an indicator of slow rates of clastic deposition in shallow marine environments (Odin and Matter, 1981;Harris and Whiting, 2000). The presence of this mineral at all three sites suggests erosion of near-shore/shelf sediments and redeposition at greater water depths on the continental slope.…”

Section: Sediment Compositionmentioning

confidence: 94%

Diagenetic Alteration of Magnetic Signals by Anaerobic Oxidation of Methane Related to a Change in Sedimentation Rate

Riedinger

Pfeifer

Kasten

et al. 2005

Geochimica et Cosmochimica Acta

165

167

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Section: Sediment Compositionmentioning

confidence: 94%

Diagenetic Alteration of Magnetic Signals by Anaerobic Oxidation of Methane Related to a Change in Sedimentation Rate

Riedinger

Pfeifer

Kasten

et al. 2005

Geochimica et Cosmochimica Acta

165

167

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“…Glauconite is commonly formed along the shelf to continental slope during transgressions and under very low sedimentation rates (Odin and Matter, 1981;Galán et al, 1989;Harris and Whiting, 2000). The rapid transgression produced a sharp onshore shift of the depositional systems, trapping the coarse-grained sediment in shallower areas of the platform.…”

Section: Relative Sea-level Fluctuationsmentioning

confidence: 99%

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Pérez-Asensio

Aguirre

Schmiedl

et al. 2012

Palaeogeography, Palaeoclimatology, Palaeoecology

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Benthic foraminiferal assemblages of a drill core from the lower Guadalquivir Basin (northern Gulf of Cádiz, SW Spain) have been analysed in order to reconstruct the paleoenvironmental evolution in the vicinity of the Betic seaways during the Messinian. The core consists of marine sediments ranging from the latest Tortonian to the early Pliocene. Changes in the abundance of certain marker species, planktonic/benthic ratio (P/B ratio), paleodepth estimated with a transfer function, content of sand grains and presence of glauconitic layers indicate a complete transgressive-regressive sea-level cycle from the bottom to the top of the section. An abrupt sea-level rise, from inner-middle shelf to middle slope, is recorded at the lowermost part of the core (latest Tortonian-earliest Messinian), followed by a relatively rapid shallowing from middle slope to outer shelf. Magnetobiostratigraphic data show These assemblages are dominated by Nonion fabum and Bulimina elongata, two taxa that are able to feed from continental low-quality organic matter, most likely derived from river run-off. The paleoenviromental evolution on the Atlantic side of Betic and Rifian seaways is similar during the Messinian, with a Messinian continuous sea-level lowering driven by regional tectonic uplift and upwelling-related waters reaching the upper slope. This study will further contribute to understand the role of tectonics on the sea-level changes as well as on the closure of the Atlantic-Mediterranean gateways that led to the MSC, and on the paleoceanography on the Atlantic sides of these corridors.

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“…Thus, occurrence of abundant glauconite reflects marine transgression and associated sediment starvation [16,28]. Recent studies focusing on passive-margin successions have shown that glauconite may be ubiquitous throughout a depositional sequence, but its origins (authigenic vs. detrital), abundance, and maturity vary systematically within and through systems tracts [19,29,30]. Maximum glauconite abundance and maturity are characteristics of the condensed section (CS) and the associated surface of maximum sediment starvation, which occur at the transition between the TST and the highstand systems tract (HST).…”

Section: Glauconite In Sequence Stratigraphymentioning

confidence: 99%

Facies analysis, glauconite distribution and sequence stratigraphy of the middle Eocene Qarara Formation, El-Minya area, Egypt

Hegab

Serry²,

Anan

et al. 2016

Egyptian Journal of Basic and Applied Sciences

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Available online A B S T R A C TThe Qarara Formation consists mainly of shale at the base and overlain by limestone at the top. The formation is Middle Eocene (Lutetian) in age. Three sections located at the eastern bank of the Nile River in El-Minya Province have been measured, described, and sampled.These sections from north to south are: Gebel Qarara, El-Sheikh Fadl, and Gebel El-Ahmar.The main microfacies identified in the studied sections are: silty claystone, silty shale, fossiliferous glauconite, glauconitic (green) sand, glauconitic fossiliferous ironstone, glauconitic bioclastic wacke-packstone, glauconitic bioclastic lime-mudstone-wackestone. These microfacies have been deposited in shallow open marine environment.Collectively the studied rocks contain two principal facies: lower argillaceous facies and upper carbonate facies that separated by glauconitic fossiliferous ironstone bed. The lower argillaceous part represents highstand systems tract (HST), whereas the upper carbonate part represents transgressive systems tract (TST). The glauconitic fossiliferous ironstone bed is recognized as a sequence boundary (SB).

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Sequence-stratigraphic significance of Miocene to Pliocene glauconite-rich layers, on- and offshore of the US Mid-Atlantic margin

Cited by 56 publications

References 18 publications

Diagenetic Alteration of Magnetic Signals by Anaerobic Oxidation of Methane Related to a Change in Sedimentation Rate

Diagenetic Alteration of Magnetic Signals by Anaerobic Oxidation of Methane Related to a Change in Sedimentation Rate

Messinian paleoenvironmental evolution in the lower Guadalquivir Basin (SW Spain) based on benthic foraminifera

Facies analysis, glauconite distribution and sequence stratigraphy of the middle Eocene Qarara Formation, El-Minya area, Egypt

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