Sessions > SB5 Sedimentary Basins
SYMPOSIUM SB5 - Sedimentary Basins
Sedimentary basin deposits contain the archives of the interactions between surface and deep processes. Plate Tectonics is the most appropriate scale to establish the geodynamic framework of sedimentary basins that form in a great variety of contexts: both on continental and oceanic crust and within divergent, convergent, transform settings (or any combination of those). These basins can also be associated to salt processes complicating the overall basin analysis. The geometry of the sedimentary basin, of its boundaries and tectonic surroundings, as well as its internal structure and its sedimentary record allows defining the tectonic scenario in which the basin formed and can be imaged using 2D and 3D seismic. Moreover, the huge amount of information contained in the sedimentary record allows for the analysis of a wide range of parameters required to define the tectonic and climatic histories depending on the quality its outcrop or/and subsurface data. However, the intimate relationships between surface and deep processes (tectonics, sedimentary, climatic, or surficial) ultimately defining the geometry, the stratigraphic and depositional structure of the basin requires multidisciplinary studies.
This theme therefore seeks studies with approaches integrating different geoscience fields at any time scales (from the Precambrian to the Present) as well as those focused on more specific processes.
Description. This open session invites contributions on the general topics related to Sedimentary Basins. It is an opportunity to present studies that do not fall within research covered by the special sessions SB5.1 to SB.10.
Description. Forty years from the publication of the seminal AAPG Memoir introducing Seismic Stratigraphy (Payton, 1977), and just over a decade from the first publications demonstrating the potential of three-dimensional seismic analysis for academic research, where are we at with 3D Seismic Stratigraphy? This session will focus on the application of 3D seismic stratigraphy and imaging for characterizing sedimentary basins at all scales, from sedimentary processes (continental, shallow marine and deep marine environments of both carbonate and siliciclastic settings) to diagenesis, fluid flow and tectono-stratigraphy.
The session will aim at showcasing the latest technologies and concepts in 3D seismic interpretation, with an emphasis on innovative workflows and integrated studies, including basin-scale 3D seismic stratigraphy studies and outcrop-seismic correlations.
Description. On active margins, subduction processes (e.g., motion and coupling of the downgoing slab) are controlling the development of imbricated thrust wedge and therefore controls the distribution and the evolution of sedimentation on the lower trench slope. Thus, the sedimentary infill of subduction-related sedimentary basins, including the trench and the forearc basin, may have recorded the evolution of tectonic activity, as well as climatic and eustatic signatures. Convergent margins also display oil and gas seeps, methane expelling mud volcanoes, gas chimneys and hydrates illustrating the importance of fluids migrations in such geological systems.
This session is dedicated to all presentations providing new results, whatever the time span, that allow to:
Studies that examine the sedimentary record of paleo-earthquakes and document large submarine slides in subduction settings are also very welcome.
Description. Our session aims to bring together sedimentologists, geomorphologists, and structural geologists with broad interests in surface processes in sediment routing systems of convergent zones:
Description. The mechanism of continental break-up, from the formation of rifts to passive continental margins (divergent to transform), and their consequences on the geometry of the sediment infilling, are still poorly understood. Several european programs (in France Actions Marges and PAMELA programs) addressed these questions which provide new observations, models and concepts. In this session we want to address several key points:
We encourage contributions aiming to present observations, quantifications and/or modeling addressing these questions, with special attention to the coupling processes.
Description. Tectonic and sedimentary processes are intimately linked throughout basin development on all scales of time and space. This session focuses on interactions of sedimentation and tectonics on the scale of individual structures such as folds, faults and diapirs of salt and shale in all basinal settings.
Growth or syntectonic strata are deposited during deformation. Syn-depositional tectonic activity intimately controls sedimentation patterns. Many studies have provided important insight into the impact of growth structures on facies and thickness distributions. Sedimentation, in turn, influences deformation, for example, enhancing or damping deformation distribution by mass flux or by controlling deformation style through mechanical stratigraphy. Over the last 20 years the study of growth strata has also provided first order constraints on quantifying deformation distribution, timing, rates, kinematics and mechanisms.
For this session we invite contributions presenting new studies on these topics based on field or sub-surface data, numerical or analog modeling.
Description. This session is dedicated to multidisciplinary studies of Precambrian to Cenozoic South American basins. It aims to present new findings and developments related to these basins. Are expected:
The scope is broad so we seek synthetic multidisciplinary studies contributions regarding one or more of these aspects although representative case study contributions are also welcome.
Description. The sedimentary record is our main archive when investigating deep-time glaciation. Sequence stratigraphic models of glaciogenic successions differ considerably from non-glacial depositional systems owing to, for instances, significantly higher rates of sediment supply, complex patterns of relative sea-level change with competing glacioeustacy and glacioisostacy, recurrent high-magnitude outburst events, high-amplitude glacial erosion surfaces and related subglacial depositional systems.
This session intends to bring together geoscientists from paleoclimatology to reservoir engineering, showing how a better understanding of Earth's glacial record may be achieved by developing specific concepts for the unravelling of glaciogenic depositional sequences in sedimentary basins.
Description. Glacial epochs are relatively rare in Earth’s history but have recurred episodically since at least 2.9 Ga and played an important role in shaping the evolution of life and the environment. For example, global (snowball) glaciations at the beginning and end of the Proterozoic appear to be linked to increases in atmospheric O2 and fundamental changes in the biosphere, whereas Paleozoic glaciations are associated with mass extinctions. The geological record of past ice ages has also been pivotal in reconstructing ancient paleogeographies and testing global climate models. Nevertheless, the geological evidence for ancient glaciations is commonly controversial and hypotheses for what triggered global cooling continue to be intensely debated.
The aim of this multidisciplinary session is to share and discuss new data bearing on the timing, causes, impacts, and sedimentary records of ancient glaciations—from the Archean to the Cenozoic. We seek submissions from diverse perspectives, including (but not limited to) the sedimentary and sequence stratigraphic imprint of glaciation, new chronometric constraints on the timing, timescale, and tempo of past glaciations, geochemical and fossil evidence informing the trigger mechanisms for global cooling, and modeling studies aimed at understanding glacial and deglacial processes. We further encourage submissions presenting novel approaches to reconstructing the extent and drivers for ancient glaciation.
Description. Understanding how sediments are eroded, transported and deposited by rivers and in the sea is fundamental for identifying the relationship between drainage dynamics (sources) and the filling history of sedimentary basins (sinks), at all scales. Stratigraphic architecture of alluvial to fluvial systems is the very first sedimentary record at the outlet of the drainage area, and provides the record of relief history and sediment by-pass. Laboratory experiments provide an additional wealth of information and help to investigate the processes involved in landscape evolution, as well as the record of sedimentary sequences.
The session is focused on field studies and laboratory experiments that contribute to our knowledge on sediment production, fluvial dynamics, and stratigraphic architectures. We particularly welcome works on:
Description. In a depressed oil prices environment and declining production in mature provinces, it is necessary to unlock new resources with lower risk and better efficiency. Indeed, there are still significant resources to be explored in the frontier basins which offer great potential for further developments. These are often poor-data areas, where the basin geology is insufficiently constrained, making exploration and prospective risks difficult to assess. However, advances in sedimentology and basin analysis can be a key in difficult times for hydrocarbon exploration to better evaluate the distribution and the quality of source-rocks, reservoir bodies as well as seal intervals, especially in such under-explored areas. Moreover, an enhanced understanding of recently rediscovered depositional environments, such as lacustrine systems or contourite complexes for example, may help for future discoveries and definition of new plays.
This session constitutes an opportunity to present papers on the way to de-risk exploration in frontier areas with state of the art sedimentology, paleogeography and tectonic-sedimentation interaction studies.
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