Jean Letouzey

Sorbonne Université

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Trends

Author Order

Document Type

Co-Authors

Dominique Frizon de Lamotte

CY Cergy Paris Université

Salman Jahani

National Iranian Oil Company (Iran)

Nadaya Cubas

Institut des Sciences de la Terre de Paris

Jean‐Paul Callot

Université de Pau et des Pays de l'Adour

Didier Granjeon

IFP Énergies nouvelles

Christian Gorini

Sorbonne Université

Cleverson Guizan Silva

Universidade Federal Fluminense

Juliana Maria Gonçalves de Souza

Institut des Sciences de la Terre de Paris

Carla Müller

French Norwegian Foundation

Mohammad Mahdi Khatib

University of Birjand

Cooperative Institutions

Centre National de la Recherche Scientifique

Sorbonne Université

Institut des Sciences de la Terre de Paris

IFP Énergies nouvelles

National Iranian Oil Company (Iran)

Institut Français

Université de Bretagne Occidentale

Total (France)

Geociencias Barcelona

Consejo Superior de Investigaciones Científicas

Author Statistics

Papers

Citation

H-Index

i-10 index

Research Field

Three-dimensional evolution of salt-controlled minibasins: Interactions, folding and megaflap development

AAPG Bulletin (2016)

Jean‐Paul Callot Jean-François Salel Jean Letouzey Jean-Marc Daniel Jean‐Claude Ringenbach

A megaflap, or an overturned, folded, sedimentary-basin edge, is a classic feature of salt-controlled basins, formed during the inception of salt allochthony.To illustrate the relative importance of the balance between salt and sediment inputs, basin rheology, and tectonism resulting from basin interactions in the development of megaflaps, a set of analog experiments were performed in a computed tomography scanner.Sediments are modeled using both granular material and a mix of granular and viscous material and salt as purely viscous material.Uneven sedimentary loading and associated salt flow localize primary minibasins, which then migrate and expand laterally until sufficient thickness is reached to pin the downbuilding phase.The encasement of minibasins into the mother-salt layer is followed by secondary minibasin development above the canopy, the inception and localization of which appear to be more locally controlled by the primary salt feeders, salt glaciers, and canopies.Enhanced salt extrusion along basin edges is responsible for (1) classic halokinetic sequences, (2) major wedging and basin-edge erosion, and (3) basin-edge backfolding onto the basin centers, forming megaflaps.Basin interactions during differential subsidence and secondary minibasin development above the allochthonous salt canopy result in the formation of salt welds and tectonic deformation at basin boundaries, including broken and transported basin edges.The major controlling factor in megaflap development is salt allochthony, which allows the local salt extrusion rate to be higher than the sedimentation rate.Enhanced allochthony is the result of enhanced pressure related to local salt stock squeezing, regional shortening, or basin tilting.

Salt tectonics

10.1306/03101614087

Cite

Citations (47)

The Salt Diapirs of the Eastern Fars Province (Zagros, Iran): A Brief Outline of their Past and Present

Frontiers in earth sciences (2007)

Salman Jahani Jean‐Paul Callot Dominique Frizon de Lamotte Jean Letouzey Pascale Leturmy

Salt tectonics

Salt dome

10.1007/978-3-540-69426-7_15

Cite

Citations (88)

Abstract: Structural Evolution Of The Assam-Arakan Petroleum Provinces (NE India) 

AAPG Bulletin (1999)

Jean Letouzey

10.1306/c9ebbfaf-1735-11d7-8645000102c1865d

Cite

Citations (0)

Cenozoic paleo-stress pattern in the Alpine Foreland and structural interpretation in a platform basin

Tectonophysics (1986)

Jean Letouzey

Clockwise

Stress field

Stylolite

10.1016/0040-1951(86)90033-8

Cite

Citations (133)

Seismic hazard of the western Makran subduction zone: Insight from mechanical modelling and inferred frictional properties

Earth and Planetary Science Letters (2021)

Sepideh Pajang Nadaya Cubas Jean Letouzey Laëtitia Le Pourhiet Seyedmohsen Seyedali

Accretionary wedge

Wedge (geometry)

Seamount

Earthquake rupture

Asperity (geotechnical engineering)

10.1016/j.epsl.2021.116789

Cite

Citations (37)

Tectono‐stratigraphic evolution of the offshore western Niger Delta from the Cretaceous to present: Implications of delta dynamics and paleo‐topography on gravity‐driven deformation

Basin Research (2021)

Kelvin Ikenna Chima Didier Granjeon Damien Do Couto Estelle Leroux Christian Gorini

Abstract The interaction between sedimentary wedge dynamics and paleo‐fracture zones is investigated offshore western Niger Delta lobe (WNDL) to reconstruct the evolution of the delta from the Cretaceous to present. This was achieved through detailed regional seismic interpretation, calibrated with well data. Our results suggest that high sedimentation rates in the WNDL since the Serravallian–Tortonian triggered the migration of the ‘Oligocene‐Tortonian extensional zone’ and gravity spreading seawards (from a present‐day onshore to a present‐day offshore position), with extensional, translational and contractional deformation. An additional increase in sedimentation rate since the early Pliocene, further accelerated gravity spreading and the development of the present‐day contractional front. A five‐stage tectono‐stratigraphic evolution of the offshore WNDL from the late Cretaceous to present is proposed. Paleo‐topographies formed by the Charcot and Chain Fracture Zones exerted depositional control on the stratigraphic architecture of the offshore WNDL from the Cretaceous to Serravallian. Differential subsidence on both sides of the relict Charcot and Chain transform faults is responsible for the segmentation of gravity‐driven deformation of the eastern and western Niger Delta lobes. In addition, a comparison of the stratigraphic architecture of the eastern Niger Delta lobe (ENDL) and WNDL demonstrates a similar overall progradation and sediment bypass to the deep basin during the Pliocene. During the Pleistocene, the two lobes show a distinct evolution and architecture: the ENDL shows an overall retrogradation and sediment sequestration on the shelf, whereas the WNDL displays an overall progradation and sediment bypass. This study documents long‐term and large‐scale control of delta dynamics and paleo‐topography on gravity‐driven deformation of the offshore eastern and western Niger Delta lobes, and similar analysis could be applied in the reconstruction of other passive margin basins.

Progradation

10.1111/bre.12609

Cite

Citations (7)

Okinawa Trough genesis: structure and evolution of a backarc basin developed in a continent

Marine and Petroleum Geology (1985)

Jean Letouzey Masaaki KIMURA

Forearc

Trough (economics)

Back-arc basin

Volcanic arc

Neogene

10.1016/0264-8172(85)90002-9

Cite

Citations (172)

Pre-existing salt structures and the folding of the Zagros Mountains

Geological Society London Special Publications (2012)

Jean‐Paul Callot Vincent Trocmé Jean Letouzey E. Albouy Salman Jahani

Abstract Four-dimensional analogue X-ray tomography imagery is used to investigate the role played by pre-existing salt structures during compressive deformation. Initially linear salt structures evolve towards more axisymmetric diapirs. Depending on the diapir geometry and on its thickness relative to the sedimentary column thickness, the diapirs are either (1) shortened and localize sharp overturned folds for vertical pipe-like diapirs or else (2) act as preferentially oriented ramps, the diapir being incorporated in the fold for pillow-like diapirs. The ridges have a strong effect on the lateral extent and orientation of folds: they disconnect the folds formed on either side of the salt wall. Compressional relays between ridges allow for a folded connection between both sides. The Zagros Mountains in southern Iran offer a large variety of comparable structures, associated with the Hormuz salt level which acts as the regional décollement. Most of the salt structures have been active from the Early Palaeozoic until the present day. The first-order critical taper is controlled by the distribution of Hormuz décollement level and by its thickness. At a smaller scale, the fold geometry and size are locally controlled by the pre-existing salt structures, which are the main source of heterogeneity in the deformation.

Folding (DSP implementation)

10.1144/sp363.27

Cite

Citations (125)

Structural evolution of the Kopeh Dagh fold-and-thrust belt (NE Iran) and interactions with the South Caspian Sea Basin and Amu Darya Basin

Marine and Petroleum Geology (2014)

Alexandra Robert Jean Letouzey Mohammad Ali Kavoosi Sharham Sherkati Carla Müller

Diachronous

Alpine orogeny

10.1016/j.marpetgeo.2014.05.002

Cite

Citations (144)