Stratigraphic response to sedimentation in a net-accommodation-limited setting, Lower Cretaceous Basal Quartz, south-central Alberta

Arnott, R. W. C.; Zaitlin, Brian A.; Potocki, Daniel J.

doi:10.2113/50.1.92

Cited by 24 publications

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“…Concepts such as transgression and regression do not apply, unless correlation with a coeval coastline can be established (e.g., Kerr et al, 1999;Figure 27), but unconventional systems tracts such as "low-accommodation" versus "high-accommodation" may be useful for regional correlation (e.g., Olsen et al, 1995;Martinsen et al, 1999;Boyd et al, 2000;Arnott et al, 2002;Zaitlin et al, 2002;Leckie and Boyd, 2003;Ramaekers and Catuneanu, 2004;Leckie et al, 2004;Figure 28). Such systems tracts are defined by the ratio between fluvial architectural elements.…”

Section: Nonmarine Settingsmentioning

confidence: 99%

Towards the standardization of sequence stratigraphy

Catuneanu

Abreu

Bhattacharya

et al. 2009

Earth-Science Reviews

1,274

726

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Part of the Earth Sciences CommonsThis Article is brought to you for free and open access by the Earth and Atmospheric Sciences, Department of at DigitalCommons@University of Nebraska -Lincoln. It has been accepted for inclusion in Papers in the Earth and Atmospheric Sciences by an authorized administrator of DigitalCommons@University of Nebraska -Lincoln. AbstractSequence stratigraphy emphasizes facies relationships and stratal architecture within a chronological framework. Despite its wide use, sequence stratigraphy has yet to be included in any stratigraphic code or guide. This lack of standardization reflects the existence of competing approaches (or models) and confusing or even conflicting terminology. Standardization of sequence stratigraphy requires the definition of the fundamental model-independent concepts, units, bounding surfaces and workflow that outline the foundation of the method. A standardized scheme needs to be sufficiently broad to encompass all possible choices of approach, rather than being limited to a single approach or model.A sequence stratigraphic framework includes genetic units that result from the interplay of accommodation and sedimentation (i.e., forced regressive, lowstand and highstand normal regressive, and transgressive), which are bounded by "sequence stratigraphic" surfaces. Each genetic unit is defined by specific stratal stacking patterns and bounding surfaces, and consists of a tract of correlatable depositional systems (i.e., a "systems tract"). The mappability of systems tracts and sequence stratigraphic surfaces depends on depositional setting and the types of data available for analysis. It is this high degree of variability in the precise expression of sequence stratigraphic units and bounding surfaces that requires the adoption of a methodology that is sufficiently flexible that it can accommodate the range of likely expressions. The integration of outcrop, core, well-log and seismic data affords the optimal approach to the application of sequence stratigraphy. Missing insights from one set of data or another may limit the "resolution" of the sequence stratigraphic interpretation. 1 2 c a t u n e a n u e t a l . i n e a r t h -science r e v i e w s 92 (2009)

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Section: Nonmarine Settingsmentioning

confidence: 99%

Towards the standardization of sequence stratigraphy

Catuneanu

Abreu

Bhattacharya

et al. 2009

Earth-Science Reviews

1,274

726

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“…3), which comprise the third to sixth members of the Xujiahe Formation, were formed during the transition from highaccommodation to low-accommodation phases. This is in contrast to the common mode of fluvial sequences in foreland basins, which is characterized by a succession from amalgamated river-channel sandstones (the lowaccommodation phase) to isolated river-channel sandstones (the high-accommodation phase) (e.g., Wright and Marriott, 1993;Hamilton and Tadros, 1994;Shanley and McCabe, 1994;Olsen et al, 1995;Martinsen et al, 1999;Plint et al, 2001;Arnott et al, 2002;Holz et al, 2002;Zaitlin et al, 2002;Atchley et al, 2004;Leckie et al, 2004;Lunt et al, 2004;Adams and Bhattacharya, 2005;Bridge, 2006;Catuneanu, 2006;Mclaurin and Steel, 2007;Catuneanu et al, 2009;Ghazi and Mountney, 2009;Leleu et al, 2009;Fanti and Catuneanu, 2010;Jinnah and Roberts, 2011;Hajek and Heller, 2012). The particular fluvial sequence-stratigraphic mode in the Xujiahe Formation in the Guanji well section may represent a sequence mode that formed in an alluvial setting with the rapid growth of vegetation in a wet climate, and reflects fluvial sedimentation controlled by the complex tectonics of the upper-Yangtze foreland basin.…”

Section: Well Guanjimentioning

confidence: 90%

The Late Triassic Sequence-Stratigraphic Framework of the Upper Yangtze Region, South China

Mingxiang

Liu

2017

Acta Geologica Sinica - English Edition

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In the transitional period between the Middle and the Late Triassic, the Indochina orogeny caused two tectonic events in South China: (1) the formation and uplift of the Qinling‐Dabie orogenic belt along the northern margin of the South China Plate, due to its collision with the North China Plate; and 2) the development of a 1300‐km‐wide intra‐continental orogen in the southeastern part of the South China Plate, which led to a northwestward movement of the foreland thrust‐fold zone. These tectonic events resulted in the ending of the Yangtze Platform, and were a stable paleogeographic factor from the Eidacaran to the end of the Middle Triassic. This platform was characterized by the widespread development of shallow‐water carbonates. After the end of the Yangtze Platform, the upper Yangtze foreland basin (or Sichuan foreland basin) was formed during the Late Triassic and became a accumulation site of fluvial deposits that are composed of related strata of the Xujiahe Formation. In western Sichuan Province, the Xujiahe Formation overlies the Maantang Formation shallow‐water carbonate rocks of the Xiaotangzi Formation siliciclastic rocks (from shelf shales to littoral facies). The sequence‐stratigraphic framework of the Upper Triassic in the upper Yangtze foreland basin indicates a particular alluvial architecture, characterized by sequences composed of (1) successions of low‐energy fluvial deposits of high‐accommodation phases, including coal seams, and (2) high‐energy fluvial deposits of low‐accommodation phases, including amalgamated river‐channel sandstones. The spatial distribution of these fluvial deposits belonging to the Xujiahe Formation and its relative strata is characterized by gradual thinning‐out, overlapping, and pinching‐out toward both the east and south. This sedimentary record therefore expresses a particular sequence‐stratigraphic succession of fluvial deposits within the filling succession of the foreland basin. The sequence‐stratigraphic framework for the Upper Triassic in the Upper Yangtze region provides a record of the end of the Yangtze Platform and the formation of the upper Yangtze foreland basin.

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“…Arnott et al (2002) stated that in basins with increasing accommodation space meander deposits predominate in which irregularly distributed fluvial sands are preserved in thick overbank deposits. Thus, it is interpreted that the continental sediments of the Lower Nikanassin as well as those in the basal portions of the Upper Nikanassin were deposited in meander systems that formed in response to increasing accommodation space resulting from subsidence in the foreland basin.…”

Section: Depositional Modelmentioning

confidence: 99%

The Western Canada Foreland Basin: a basin-centred gas system

Boettcher

Thomas

Hrudey

et al. 2010

PGC

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Enormous volumes of gas (.30 Tcf ) are contained within the deepest portions of the Western Canada Foreland Basin, where tight gas-saturated Cretaceous sandstones grade updip into porous water-saturated sandstones. Production has occurred from coarse-grained shoreline sands both near the updip gas-water interface, such as those found in the Elmworth Field, and from low-porosity-permeability reservoirs found deeper in the basin. These basin-centred gas (BCG) reservoirs are characterized by regionally pervasive gas-saturated lithologies, abnormal pressures and no downdip water contact, and occur in low-permeability reservoirs. The keys to Shell's exploration success were an understanding of the stratigraphy, sedimentology and rock properties of the basin, the development of structural, petrophysical and geomechanical models, development of an understanding of the desiccation or dewatering process, the distribution of water within the basin and how the pressure regime evolved, interpretation of 3D seismic, and an aggressive land strategy. The evaluation of structural leads was aided when seismic and geomechanical modelling were combined, thereby aiding in the prediction of zones with a higher probability of encountering favourable reservoir producibility characteristics, that is, areas where a well developed, well connected open fracture network is expected. This multidisciplinary approach has resulted in economic success in regions once thought to be non-productive, and where it was once said, 'People go broke chasing the Nikanassin'.

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Stratigraphic response to sedimentation in a net-accommodation-limited setting, Lower Cretaceous Basal Quartz, south-central Alberta

Cited by 24 publications

References 0 publications

Towards the standardization of sequence stratigraphy

Towards the standardization of sequence stratigraphy

The Late Triassic Sequence-Stratigraphic Framework of the Upper Yangtze Region, South China

The Western Canada Foreland Basin: a basin-centred gas system

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