Highstand vs. lowstand turbidite system growth in the Makran active margin: Imprints of high-frequency external controls on sediment delivery mechanisms to deep water systems

Bourget, Julien; Zaragosi, Sébastien; Ellouz-Zimmermann, S.; Ducassou, Emmanuelle; Prins, Maarten A.; Garlan, Thierry; Lanfumey, Valentine; Schneider, Jean-Luc; Rouillard, Pierrick; Giraudeau, Jacques

doi:10.1016/j.margeo.2010.04.005

Cited by 81 publications

(70 citation statements)

References 115 publications

(256 reference statements)

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“…This approach has been successfully used in several turbidite systems for the Late Pleistocene, e.g. in the Mediterranean Sea (Ducassou, 2006;Jorry et al, 2011;Bonneau et al, 2014), North Atlantic Pierau et al, 2010;Toucanne et al, 2012), West Africa Pierau et al, 2010), Arabian sea (Bourget et al, 2010), and in the Pacific Ocean (Nakajima and Itaki, 2007;Pouderoux et al, 2012).…”

Section: Assessing the Preservation Of The Pelagic Signal In A Turbidmentioning

confidence: 99%

“…The influence of climate and environmental changes on the nature of turbidites has been recognized (Bouma, 2001), but in return, these deposits are considered unusable for paleoceanographic and paleoclimatic reconstructions because they are, by definition, made of reworked material. Some studies, however, have shown that the hemipelagic sediments interbedded within turbiditic series can provide valuable and very expanded archives of past climate changes (Nakajima and Itaki, 2007;Toucanne et al, 2008;Lebreiro et al, 2009;Bourget et al, 2010;Henrich et al, 2010;Pierau et al, 2010;Jorry et al, 2011;Pouderoux et al, 2012;Bonneau et al, 2014). The quality of the results relies on the capacity to distinguish hemipelagic from turbiditic beds, and on the presence of a pelagic component (commonly biogenic carbonates) to obtain chronostratigraphic constraints based on radiocarbon dating, oxygen isotopes, or microfaunal assemblages.…”

Section: Introductionmentioning

confidence: 99%

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Sea-level control on turbidite activity in the Rhone canyon and the upper fan during the Last Glacial Maximum and Early deglacial

tombo

Dennielou

Berné

et al. 2015

Sedimentary Geology

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The timing, routing, and processes of sediment transfer from the continents to the oceans at millennial time-scale are still largely unknown. The potential of turbidite systems (dominantly deposited during sea-level lowstands) to record global or regional environmental fluctuations is usually under-exploited because of the difficulty to obtain robust chronostratigraphic constraints in turbiditic deposits, and therefore to tie changes in sedimentary processes to environmental fluctuations. We were able to obtain a millennial-scale chronostratigraphy based on oxygen isotopes of the scarce foraminifera preserved in turbiditic deposits of the Rhone Turbidite System within the Western Mediterranean. Our results show that 1) objective criteria can be defined for the selection of foraminifera preserved within the pelagic intervals between the turbiditic sequences, in order to obtain a reliable isotope stratigraphy; 2) turbidites triggered by hyperpycnal currents are described for the first time within the Rhone Turbidite System. They are related to the periods of direct fluvial connection with the canyon head (during the sea-level lowstand and early rise), and to a period of high sediment flux in relation to the massive recession of the Rhone glaciers in the Alps; 3) the lithofacies change passing from hyperpycnal to "Bouma-type" is dated at ca 19 cal. ka BP, which might correspond to an acceleration of sea-level rise (19-ka Meltwater Pulse).

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Section: Assessing the Preservation Of The Pelagic Signal In A Turbidmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sea-level control on turbidite activity in the Rhone canyon and the upper fan during the Last Glacial Maximum and Early deglacial

tombo

Dennielou

Berné

et al. 2015

Sedimentary Geology

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“…Imbricate thrust faults picked from MCS data and correlated with the aid of bathymetry data. Bathymetry data in east modified from Bourget et al [2010]. Submarine canyon‐channel systems in blue.…”

Section: Introductionmentioning

confidence: 99%

“…Further data, including seismic reflection and refraction, magnetic, gravity, heat flow and swath bathymetry data sets (offshore both Pakistan and Iran) allowed the thick sediment section and velocity structure to be resolved in more detail but with limited along‐strike coverage [ Kopp et al , 2000; Kukowski et al , 2001; Grando and McClay , 2007; Ding et al , 2010]. Published core coverage is sparse, however analyses of 13 long piston cores from the trench and prism basins found high sedimentation rates (>2 mm/yr) dominated by interbedded hemipelagite and turbidites [ Bourget et al , 2010; Mouchot et al , 2010; Bourget et al , 2011]. …”

Section: Introductionmentioning

confidence: 99%

The structure and fault activity of the Makran accretionary prism

et al. 2012

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[1] The Makran Subduction Zone has the highest incoming sediment thickness (up to 7.5 km) of any subduction zone. These sediments have formed a wide accretionary prism ($400 km). Seismicity in the Makran is generally low; however the margin experienced an M w 8.1 earthquake in 1945 which generated a significant regional tsunami. Seismic reflection data and swath bathymetry data from offshore Pakistan are used to analyze the structure and fault activity of the outer accretionary prism. The outer prism has a simple structure of seaward verging imbricate thrust faults, many continuous for over 100 km along strike. Fault activity is analyzed using basin stratigraphy and fault geometry, revealing a frontal continuously active zone, a central intermittently active zone, and a landward inactive zone. Over 75% of the faults in the seaward $70 km of the prism show evidence for recent activity. The décollement occurs within the lower sediment section, but steps onto the top-basement surface in regions of elevated basement topography. Fault spacing (6 km) and taper (4.5 ) are comparable to other margins such as S. Hikurangi, Cascadia and Nankai, suggesting that high sediment input is not leading to an unusual prism structure. The décollement is unreflective, which is unexpected considering other prism characteristics predicting a weak surface, and may suggest a potentially stronger décollement than previously predicted. This study provides a significant advance in our understanding of the structure of an end-member convergent margin and demonstrates that systematic analyses of accretionary prism structure can help to elucidate subduction zone dynamics with ultimate relevance to seismogenic potential.

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“…The character of sedimentation in basins is related to the dynamic processes and feedback mechanisms between the external (allogenic) and internal (autogenic) forcings that govern sediment dispersal in depositional systems (Stow et al 1985;Richards et al 1998;Castelltort & Van Den Driessche 2003;Allen 2008;Sømme et al 2009;Bourget et al 2010). Sea level change, one of the external forcings, is an important parameter influencing the stratigraphic succession and resulting sedimentary architecture in deep water depositional systems (Perlmutter & Matthews 1990 Kamberis et al 2005;Steel et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Role of sea-level change in deep water deposition along a carbonate shelf margin, Early and Middle Permian, Delaware Basin: implications for reservoir characterization

Li¹,

Yu²,

Li³

et al. 2015

Geologica Carpathica

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Abstract:The architecture and sedimentary characteristics of deep water deposition can reflect influences of sea-level change on depositional processes on the shelf edge, slope, and basin floor. Outcrops of the northern slope and basin floor of the Delaware Basin in west Texas are progressively exposed due to canyon incision and road cutting. The outcrops in the Delaware Basin were measured to characterize gravity flow deposits in deep water of the basin. Subsurface data from the East Ford and Red Tank fields in the central and northeastern Delaware Basin were used to study reservoir architectures and properties. Depositional models of deep water gravity flows at different stages of sea-level change were constructed on the basis of outcrop and subsurface data. In the falling-stage system tracts, sandy debris with collapses of reef carbonates are deposited on the slope, and high-density turbidites on the slope toe and basin floor. In the low-stand system tracts, deep water fans that consist of mixed sand/mud facies on the basin floor are comprised of high-to low-density turbidites. In the transgression and high-stand system tracts, channel-levee systems and elongate lobes of mud-rich calciturbidite deposits formed as a result of sea level rise and scarcity of sandy sediment supply. For the reservoir architecture, the fan-like debris and high-density turbidites show high net-to-gross ratio of 62 %, which indicates the sandiest reservoirs for hydrocarbon accumulation. Lobe-like deep water fans with net-to-gross ratio of 57 % facilitate the formation of high quality sandy reservoirs. The channel-levee systems with muddy calciturbidites have low net-to-gross ratio of 30 %.

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Highstand vs. lowstand turbidite system growth in the Makran active margin: Imprints of high-frequency external controls on sediment delivery mechanisms to deep water systems

Cited by 81 publications

References 115 publications

Sea-level control on turbidite activity in the Rhone canyon and the upper fan during the Last Glacial Maximum and Early deglacial

Sea-level control on turbidite activity in the Rhone canyon and the upper fan during the Last Glacial Maximum and Early deglacial

The structure and fault activity of the Makran accretionary prism

Role of sea-level change in deep water deposition along a carbonate shelf margin, Early and Middle Permian, Delaware Basin: implications for reservoir characterization

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