Dimensions of Paralic Sandstone Bodies

Reynolds, Tony

doi:10.1306/00aa9a48-1730-11d7-8645000102c1865d

Cited by 97 publications

(109 citation statements)

References 16 publications

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“…Laterally extensive sheets form as waves straighten and elongate the mouth bar alongshore (Reynolds, 1999;Bhattacharya & Giosan, 2003). Down-cutting of the associated distributary channel commonly erodes the upper parts of mouth-bar sediments (Reading & Collinson, 1996).…”

Section: Discussionmentioning

confidence: 99%

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

Lord¹,

Johansen²,

Støen³

et al. 2017

NJG

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Field data collected from the northeasternmost Triassic exposures on the islands of Spitsbergen, Wilhelmøya and Barentsøya during 2015 are used for sedimentological facies analysis to improve our understanding of the stratigraphic development of the Upper Triassic strata. Results presented here build upon previous studies from the eastern areas of the Svalbard archipelago and seek to extend this understanding northward. Paralic deltaic sediments are recognised throughout the field area, and our analysis shows that the Upper Triassic De Geerdalen Formation is composed of three discrete units defined by the differences in gross depositional environments. The lower interval of early Carnian age is dominated by shallow-marine and delta-front/ shoreface deposits, the middle interval of mid Carnian age is dominated by delta-front to delta-top deposits, and the upper interval, corresponding to the Isfjorden Member, of a late Carnian to early Norian age, is dominated by delta-top deposits which include lagoonal and lacustrine deposits. These observations show that the De Geerdalen Formation represents a more distal depositional setting, than the depositional environments previously reported from the islands of Edgeøya and Hopen. We also document the presence of the Tschermakfjellet Formation and Isfjorden Member on Wilhelmøya, thus increasing our understanding of the northwestward development of the Upper Triassic succession in Svalbard.

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Section: Discussionmentioning

confidence: 99%

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

Lord¹,

Johansen²,

Støen³

et al. 2017

NJG

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“…There were a mean of 33 recorded events per year and 15 'tornado days' per year between 1960and 1989(Reynolds 1999Elsom et al 2001). Thus there are more reported tornadoes per unit area in Britain than in the USA although British tornadoes tend to have a lower intensity and duration (Meaden 1985).…”

Section: Introductionmentioning

confidence: 99%

“…Although tornadoes may occur in any season in Britain, Reynolds (1999) suggested that activity was most frequent in autumn, based on data for 1960-89 inclusive. During the British autumn, north-easterly cold air flows over relatively warm seas.…”

Section: Introductionmentioning

confidence: 99%

UK tornado climatology and the development of simple prediction tools

Holden

Wright²

2004

Quart J Royal Meteoro Soc

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SUMMARYThe principle features of tornado climatology in the UK are presented based on the 5-year period from January 1995. Just over one third of reported tornadoes occurred in the south-east region of England, and most tornado activity took place during the spring and summer while the least activity occurred during autumn. This was different to the seasonal distribution for the period from 1960 to 1989 when autumn had the greatest number of tornadoes. The reported tornado distribution was shown to be significantly affected by topography and the density of potential observers. Of the ground-based meteorological variables tested, air temperature was most closely related to tornado occurrence with a peak at 13 • C. An equation incorporating air temperature, dew-point temperature, wind speed and pressure was shown to predict a tornado day with an accuracy of 86.2%. The probability that a tornado would occur on a predicted day was 81.2%. The model was used to predict actual tornado occurrences across England, Wales and Scotland during the 5-year study period, and it was estimated that just over five-times as many tornadoes occurred than were reported. The model results suggest that the bias induced by population density was not greater than the combined influence of topography and spatial setting. This is important in the UK, because most tornadoes are reported in lowland areas which are heavily populated and it has been difficult until now to determine the extent to which tornado reports are biased by the density of potential observers.

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“…Outcrop studies have developed from qualitative to quantitative. Traditional outcrop studies were focused on collecting outcrop data, such as sand width, thickness, to populate inter-well areas by stochastic or object-based methods (Dreyer et al, 1993;Bryant and Flint, 1993;Chapin et al, 1994;Clark and Pickering, 1996;Reynolds, 1999;Floris and Peersmann, 2002). However, traditional outcrop studies can hardly provide useful data especially when it needs to be integrated into reservoir engineering database or be visualized in 3D.…”

Section: Outcrop Study With Application Of Digital Data Capture Technmentioning

confidence: 99%

Advances and Challenges of Reservoir Characterization: A Review of the Current State-of-the-Art

Jia¹,

He²,

Cai³

2012

Earth Sciences

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Dimensions of Paralic Sandstone Bodies

Cited by 97 publications

References 16 publications

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

Facies development of the Upper Triassic succession on Barentsøya, Wilhelmøya and NE Spitsbergen, Svalbard

UK tornado climatology and the development of simple prediction tools

Advances and Challenges of Reservoir Characterization: A Review of the Current State-of-the-Art

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