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| Rodriguez, M.; Fournier, M.; Chamot-rooke, Nicolas; Huchon, P.; Bourget, Julien; Sorbier, M.; Zaragosi, S.; Rabaute, A.. |
| The Owen Fracture Zone is a 800 km-long fault system that accommodates the dextral strike-slip motion between India and Arabia plates. Because of slow pelagic sedimentation rates that preserve the seafloor expression of the fault since the Early Pliocene, the fault is clearly observed on bathymetric data. It is made up of a series of fault segments separated by releasing and restraining bends, including a major pull-apart basin at latitude 20 degrees N. Some distal turbiditic channels from the Indus deep-sea fan overlap the fault system and are disturbed by its activity, thus providing landmarks to date successive stages of fault activity and structural evolution of the Owen Fracture Zone from Pliocene to Present. We determine the durability of relay... |
| Tipo: Text |
Palavras-chave: Indian Ocean; Owen Fracture Zone; Pull-apart; Transform fault. |
| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00133/24426/22435.pdf |
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| Courgeon, Simon; Bourget, Julien; Jorry, Stephan. |
| During the Plio-Quaternary, the Bonaparte Basin is characterized by a very wide (> 600 km, > 370 mi) carbonate platform and 200 km-wide (125 mi-wide) intra-shelf basin (the Malita ISB). Using 3D and 2D seismic data combined with exploration well data, this study characterizes the stratigraphic evolution of the Malita ISB during the last 3.5 million years. Two third-order transgressive sequences can be distinguished. A late Pliocene transgression occurred over an irregular topography resulting from the flexural reactivation of the Malita graben. In the centre of the intra-shelf basin, carbonate aggradation resulted in the formation of isolated carbonate platforms separated by deeper water seaways and inter-platform areas. Wider and more numerous... |
| Tipo: Text |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00319/42985/46567.pdf |
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| Caley, Thibaut; Zaragosi, S.; Bourget, Julien; Martinez, P.; Malaize, B.; Eynaud, F.; Rossignol, L.; Garlan, Thierry; Ellouz-zimmermann, Nadine. |
| The monsoon is one of the most important climatic phenomena: it promotes inter-hemispheric exchange of energy and affects the economical prosperity of several countries exposed to its seasonal seesaw. Previous studies in both the Indian and Asian monsoon systems have generally suggested a dominant northern hemispheric (NH) control on summer monsoon dynamics at the scale of suborbital-millennial climatic changes, while the forcing/response of Indian and Asian monsoons at the orbital scale remains a matter of debate. Here, six marine sediment cores distributed across the whole Arabian Sea are used to build a regional surface marine productivity signal. The productivity signal is driven by the intensity of Indian summer monsoon winds. Our results demonstrate... |
| Tipo: Text |
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| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00274/38492/36962.pdf |
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| Lericolais, Gilles; Bourget, Julien; Jorry, Stephan; Popescu, Irina; Abreu, Victor; Jouannic, Gwenael; Bayon, Germain. |
| The Danube River Basin and the Black Sea represent a unique natural laboratory for studying source to sink and global change. We will address information on the “active sink” of the system, which represents the area of active deposition: sea level variation, sediment balance, and neotectonics. Also, we will discuss the evolution and quantification of climate, tectonics, and eustasy on the sedimentation in the western Black Sea basin, along both southern and northern margins, obtained from understanding the Danube deep-sea fan processes and sedimentation. In the last decade, many of the geosciences studies carried out in the Black Sea have focused on the Holocene marine transgression. This topic has been fully discussed and is still a matter of debate.... |
| Tipo: Text |
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| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00316/42695/42273.pdf |
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| Courgeon, Simon; Bourget, Julien; Jorry, Stephan. |
| During the Plio-Quaternary, the Bonaparte Basin is characterized by the development of a wide (up to 200km) intra-shelf basin (the Malita ISB) evolving under conditions of low tectonic activity. Based on 3D and 2D seismic surveys combined with exploration well data, this study demonstrates that the stratigraphic organisation of the Malita ISB is mainly driven by fluctuations of the relative sea-level. It can be divided in three main 3rd-order system tracts: (1) a transgressive system tract, corresponding to a period of active carbonate aggradation during the late Pliocene, (2) a highstand system tract, associated with a period of strong carbonate progradation during the early-middle Quaternary, and; (3) a last system tract phasing late Quaternary... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00202/31284/29691.pdf |
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| Paumard, Victorien; Zuckmeyer, Eric; Boichard, Robert; Jorry, Stephan; Bourget, Julien; Borgomano, Jean; Maurin, Thomas; Ferry, Jean-noel. |
| This study investigates the stratigraphic evolution of the Late Oligocene - Early Miocene carbonate platforms of the Yadana area (offshore Myanmar). Well data, regional 2D and local 3D seismic surveys allow the identification of three shallow-water carbonate platforms (Yadana, 3DF and 3DE) showing various morphologic and stratigraphic patterns influenced by the presence of a paleohigh. The identification of seven seismic sequences in the Yadana area constrains the stratigraphic evolution in three stages: (1) development of aggrading attached and isolated platforms during the Chattian; (2) a period of platform emersion during the Oligocene - Miocene transition; (3) drowning of the smaller buildup (3DE) associated with km-scale backstepping on the large... |
| Tipo: Text |
Palavras-chave: Yadana; Carbonate platforms; Oligocene; Miocene; Seismic stratigraphy; Geomorphology; Paleogeography; Control parameters; Burman margin. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00364/47483/47502.pdf |
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