Skip to content

Sandy contourite drift in the late Miocene Rifian Corridor (Morocco): reconstruction of depositional environments in a foreland-basin seaway

Research output: Contribution to journalArticle

Standard

Sandy contourite drift in the late Miocene Rifian Corridor (Morocco) : reconstruction of depositional environments in a foreland-basin seaway. / Capella, W.; Hernández-Molina, F.J.; Flecker, R.; Hilgen, F.J.; Hssain, M.; Kouwenhoven, T.J.; van Oorschot, M.; Sierro, F.J.; Stow, D.A.V.; Trabucho-Alexandre, J.; Tulbure, M.A.; de Weger, W.; Yousfi, M.Z.; Krijgsman, W.

In: Sedimentary Geology, Vol. 355, 15.06.2017, p. 31-57.

Research output: Contribution to journalArticle

Harvard

Capella, W, Hernández-Molina, FJ, Flecker, R, Hilgen, FJ, Hssain, M, Kouwenhoven, TJ, van Oorschot, M, Sierro, FJ, Stow, DAV, Trabucho-Alexandre, J, Tulbure, MA, de Weger, W, Yousfi, MZ & Krijgsman, W 2017, 'Sandy contourite drift in the late Miocene Rifian Corridor (Morocco): reconstruction of depositional environments in a foreland-basin seaway', Sedimentary Geology, vol. 355, pp. 31-57. https://doi.org/10.1016/j.sedgeo.2017.04.004

APA

Capella, W., Hernández-Molina, F. J., Flecker, R., Hilgen, F. J., Hssain, M., Kouwenhoven, T. J., ... Krijgsman, W. (2017). Sandy contourite drift in the late Miocene Rifian Corridor (Morocco): reconstruction of depositional environments in a foreland-basin seaway. Sedimentary Geology, 355, 31-57. https://doi.org/10.1016/j.sedgeo.2017.04.004

Vancouver

Author

Capella, W. ; Hernández-Molina, F.J. ; Flecker, R. ; Hilgen, F.J. ; Hssain, M. ; Kouwenhoven, T.J. ; van Oorschot, M. ; Sierro, F.J. ; Stow, D.A.V. ; Trabucho-Alexandre, J. ; Tulbure, M.A. ; de Weger, W. ; Yousfi, M.Z. ; Krijgsman, W. / Sandy contourite drift in the late Miocene Rifian Corridor (Morocco) : reconstruction of depositional environments in a foreland-basin seaway. In: Sedimentary Geology. 2017 ; Vol. 355. pp. 31-57.

Bibtex

@article{90a7a023c75240d58e52a2db5d444bb4,
title = "Sandy contourite drift in the late Miocene Rifian Corridor (Morocco): reconstruction of depositional environments in a foreland-basin seaway",
abstract = "The Rifian Corridor was a seaway between the Atlantic Ocean and the Mediterranean Sea during the late Miocene. The seaway progressively closed, leading to the Messinian Salinity Crisis in the Mediterranean Sea. Despite the key palaeogeographic importance of the Rifian Corridor, patterns of sediment transport within the seaway have not been thoroughly studied. In this study, we investigated the upper Miocene sedimentation and bottom current pathways in the South Rifian Corridor. The planktic and benthic foraminifera of the upper Tortonian and lower Messinian successions allow us to constrain the age and palaeo-environment of deposition. Encased in silty marls deposited at 150–300 m depth, there are (i) 5 to 50 m thick, mainly clastic sandstone bodies with unidirectional cross-bedding; and (ii) 50 cm thick, mainly clastic, tabular sandstone beds with bioturbation, mottled silt, lack of clear base or top, and bi-gradational sequences. Furthermore, seismic facies representing elongated mounded drifts and associated moat are present at the western mouth of the seaway. We interpret these facies as contourites: the products of a westward sedimentary drift in the South Rifian Corridor. The contourites are found only on the northern margin of the seaway, thus suggesting a geostrophic current flowing westward along slope and then northward. This geostrophic current may have been modulated by tides. By comparing these fossil examples with the modern Gulf of Cadiz, we interpret these current-dominated deposits as evidence of late Miocene Mediterranean overflow into the Atlantic Ocean, through the Rifian Corridor. This overflow may have affected late Miocene ocean circulation and climate, and the overflow deposits may represent one of the first examples of mainly clastic contourites exposed on land.",
keywords = "Marine gateway, marine sediments, sandstones, dune structures, contourites, Mediterranean Overflow Water",
author = "W. Capella and F.J. Hern{\'a}ndez-Molina and R. Flecker and F.J. Hilgen and M. Hssain and T.J. Kouwenhoven and {van Oorschot}, M. and F.J. Sierro and D.A.V. Stow and J. Trabucho-Alexandre and M.A. Tulbure and {de Weger}, W. and M.Z. Yousfi and W. Krijgsman",
year = "2017",
month = "6",
day = "15",
doi = "10.1016/j.sedgeo.2017.04.004",
language = "English",
volume = "355",
pages = "31--57",
journal = "Sedimentary Geology",
issn = "0037-0738",
publisher = "Elsevier",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - Sandy contourite drift in the late Miocene Rifian Corridor (Morocco)

T2 - reconstruction of depositional environments in a foreland-basin seaway

AU - Capella, W.

AU - Hernández-Molina, F.J.

AU - Flecker, R.

AU - Hilgen, F.J.

AU - Hssain, M.

AU - Kouwenhoven, T.J.

AU - van Oorschot, M.

AU - Sierro, F.J.

AU - Stow, D.A.V.

AU - Trabucho-Alexandre, J.

AU - Tulbure, M.A.

AU - de Weger, W.

AU - Yousfi, M.Z.

AU - Krijgsman, W.

PY - 2017/6/15

Y1 - 2017/6/15

N2 - The Rifian Corridor was a seaway between the Atlantic Ocean and the Mediterranean Sea during the late Miocene. The seaway progressively closed, leading to the Messinian Salinity Crisis in the Mediterranean Sea. Despite the key palaeogeographic importance of the Rifian Corridor, patterns of sediment transport within the seaway have not been thoroughly studied. In this study, we investigated the upper Miocene sedimentation and bottom current pathways in the South Rifian Corridor. The planktic and benthic foraminifera of the upper Tortonian and lower Messinian successions allow us to constrain the age and palaeo-environment of deposition. Encased in silty marls deposited at 150–300 m depth, there are (i) 5 to 50 m thick, mainly clastic sandstone bodies with unidirectional cross-bedding; and (ii) 50 cm thick, mainly clastic, tabular sandstone beds with bioturbation, mottled silt, lack of clear base or top, and bi-gradational sequences. Furthermore, seismic facies representing elongated mounded drifts and associated moat are present at the western mouth of the seaway. We interpret these facies as contourites: the products of a westward sedimentary drift in the South Rifian Corridor. The contourites are found only on the northern margin of the seaway, thus suggesting a geostrophic current flowing westward along slope and then northward. This geostrophic current may have been modulated by tides. By comparing these fossil examples with the modern Gulf of Cadiz, we interpret these current-dominated deposits as evidence of late Miocene Mediterranean overflow into the Atlantic Ocean, through the Rifian Corridor. This overflow may have affected late Miocene ocean circulation and climate, and the overflow deposits may represent one of the first examples of mainly clastic contourites exposed on land.

AB - The Rifian Corridor was a seaway between the Atlantic Ocean and the Mediterranean Sea during the late Miocene. The seaway progressively closed, leading to the Messinian Salinity Crisis in the Mediterranean Sea. Despite the key palaeogeographic importance of the Rifian Corridor, patterns of sediment transport within the seaway have not been thoroughly studied. In this study, we investigated the upper Miocene sedimentation and bottom current pathways in the South Rifian Corridor. The planktic and benthic foraminifera of the upper Tortonian and lower Messinian successions allow us to constrain the age and palaeo-environment of deposition. Encased in silty marls deposited at 150–300 m depth, there are (i) 5 to 50 m thick, mainly clastic sandstone bodies with unidirectional cross-bedding; and (ii) 50 cm thick, mainly clastic, tabular sandstone beds with bioturbation, mottled silt, lack of clear base or top, and bi-gradational sequences. Furthermore, seismic facies representing elongated mounded drifts and associated moat are present at the western mouth of the seaway. We interpret these facies as contourites: the products of a westward sedimentary drift in the South Rifian Corridor. The contourites are found only on the northern margin of the seaway, thus suggesting a geostrophic current flowing westward along slope and then northward. This geostrophic current may have been modulated by tides. By comparing these fossil examples with the modern Gulf of Cadiz, we interpret these current-dominated deposits as evidence of late Miocene Mediterranean overflow into the Atlantic Ocean, through the Rifian Corridor. This overflow may have affected late Miocene ocean circulation and climate, and the overflow deposits may represent one of the first examples of mainly clastic contourites exposed on land.

KW - Marine gateway

KW - marine sediments

KW - sandstones

KW - dune structures

KW - contourites

KW - Mediterranean Overflow Water

U2 - 10.1016/j.sedgeo.2017.04.004

DO - 10.1016/j.sedgeo.2017.04.004

M3 - Article

VL - 355

SP - 31

EP - 57

JO - Sedimentary Geology

JF - Sedimentary Geology

SN - 0037-0738

ER -