scholarly journals The stratigraphic evolution of onlap in siliciclastic deep-water systems: Autogenic modulation of allogenic signals

2019 ◽  
Author(s):  
Euan Soutter ◽  
Ian Kane ◽  
Arne Fuhrmann ◽  
Zoe Cumberpatch ◽  
Mads Huuse
Keyword(s):  
Deep Water ◽  
Water Systems ◽  
Stratigraphic Evolution

Unusual Facies and Geometries of the Paleogene Deep-Water Systems in the North Sea - Effects of Sand Remobilisation

2002 ◽  
Author(s):  
D. Duranti ◽  
M. Huuse ◽  
J.A. Cartwright ◽  
A. Hurst ◽  
B. Cronin ◽  
...  
Keyword(s):  
North Sea ◽  
Deep Water ◽  
Water Systems ◽  
The North ◽  
The North Sea

Sequence stratigraphic evolution of the Mensa and Thunder Horse intraslope basins, northern deep-water Gulf of Mexico—Lower Cretaceous through upper Miocene (8.2 Ma): A case study

AAPG Bulletin ◽  
2017 ◽  
Vol 101 (07) ◽  
pp. 1109-1143 ◽  
Author(s):  
Paul Weimer ◽  
Renaud Bouroullec ◽  
Todd G. Lapinski ◽  
Aaron A. van den Berg ◽  
Raquel Cepeda ◽  
...  
Keyword(s):  
Gulf Of Mexico ◽  
Deep Water ◽  
Lower Cretaceous ◽  
Sequence Stratigraphic ◽  
Upper Miocene ◽  
Stratigraphic Evolution

scholarly journals Syndepositional tectonics and mass-transport deposits control channelized, bathymetrically complex deep-water systems (Aínsa depocenter, Spain)

2020 ◽  
Vol 90 (7) ◽  
pp. 729-762
Author(s):  
Daniel E. Tek ◽  
Miquel Poyatos-Moré ◽  
Marco Patacci ◽  
Adam D. McArthur ◽  
Luca Colombera ◽  
...  
Keyword(s):  
Mass Transport ◽  
Deep Water ◽  
Tectonic Setting ◽  
Water Systems ◽  
Tectonic Structures ◽  
Lateral Confinement ◽  
Facies Associations ◽  
Active Tectonic ◽  
Basin Floor ◽  
Mass Transport Deposits

ABSTRACT The inception and evolution of channels in deep-water systems is controlled by the axial gradient and lateral confinement experienced by their formative flows. These parameters are often shaped by the action of tectonic structures and/or the emplacement of mass-transport deposits (MTDs). The Arro turbidite system (Aínsa depocenter, Spanish Pyrenees) is an ancient example of a deep-water channelized system from a bathymetrically complex basin, deposited in an active tectonic setting. Sedimentologic fieldwork and geologic mapping of the Arro system has been undertaken to provide context for a detailed study of three of the best-exposed outcrops: Sierra de Soto Gully, Barranco de la Caxigosa, and Muro de Bellos. These locations exemplify the role of confinement in controlling the facies and architecture in the system. Sedimentologic characterization of the deposits has allowed the identification of fifteen facies and eight facies associations; these form a continuum and are non-unique to any depositional environment. However, architectural characterization allowed the grouping of facies associations into four depositional elements: i) weakly confined, increasing-to-decreasing energy deposits; ii) progradational, weakly confined to overbank deposits; iii) alternations of MTDs and turbidites; iv) channel fills. Different styles of channel architecture are observed. In Barranco de la Caxigosa, a master surface which was cut and subsequently filled hosts three channel stories with erosional bases; channelization was enhanced by quasi-instantaneous imposition of lateral confinement by the emplacement of MTDs. In Muro de Bellos, the inception of partially levee-confined channel stories was enhanced by progressive narrowing of the depositional fairway by tectonic structures, which also controlled their migration. Results of this study suggest that deep-water channelization in active tectonic settings may be enhanced or hindered due to: 1) flow interaction with MTD-margin topography or; 2) MTD-top topography; 3) differential compaction of MTDs and/or sediment being loaded into MTDs; 4) formation of megascours by erosive MTDs; 5) basin-floor topography being reset by MTDs. Therefore, the Arro system can be used as an analog for ancient subsurface or outcrop of channelized deposits in bathymetrically complex basins, or as an ancient record of deposits left by flow types observed in modern confined systems.

The stratigraphic evolution of deep-water architecture

2011 ◽  
Vol 28 (3) ◽  
pp. 609-611 ◽  
Author(s):  
Stephen M. Hubbard ◽  
Brian W. Romans ◽  
Andrea Fildani
Keyword(s):  
Deep Water ◽  
Stratigraphic Evolution
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