The Dinantian stratigraphy of the East Midlands: a seismostratigraphic approach

Ebdon, C. C.; Fraser, A. J.; Higgins, A. C.; Mitchener, B. C.; Strank, A. R. E.

doi:10.1144/gsjgs.147.3.0519

Cited by 38 publications

(37 citation statements)

References 31 publications

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“…The onset of this faulting event was sudden and apparently due to a phase of regional tectonic activity, as suggested for the northern and central England basins at this time by Gawthorpe et al (1989) and Ebdon et al (1990), but fault movement persisted intermittently and less dramatically until the late Dinantian (Brigantian) when a second major tectonic event occurred. During this time interval the margins of the platforms seemed unable, in general, to prograde out into the basins.…”

Section: Platform and Basin Phasesupporting

confidence: 59%

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Controls on ramp, platform and basinal sedimentation in the Dinantian of the Dublin Basin and Shannon Trough, Ireland

Strogen¹,

Somerville²,

Pickard³

et al. 1996

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In the Dublin Basin a Courceyan ramp phase of sedimentation was followed in the Chadian by tectonic break-up of the basin into distinct shallow-water platforms, on which production of carbonate sediments continued in considerable volume, and 'deep' basinal areas in which it ceased. Progradation of the platforms across these basinal areas was limited, and mainly confined to the dip-slope of hanging wall blocks; progradation across fault scarps was rare. In the Shannon Trough basement-fault control was evident in the distribution and migration patterns of volcanic centres in the Chadian to Arundian, but despite this, ramp sedimentation occurred throughout the Dinantian, evolving into a purely constructional large platform by late Dinantian time. There was no break-up of the basin as in the case of the Dublin Basin.The reason for the contrasting behaviour of the two basins is related to the rate of upwards movement of extensional faults relative to sedimentation rates. In the Dublin Basin these faults penetrated to the palaeosurface to form scarps by the late Chadian, and this topography survived into the Brigantian. In the Shannon Trough these faults failed to surface, but deep basement structures controlled the distribution of Dinantian volcanic centres which lie on a series of ENE-trending lineaments. These lineaments, which parallel the axis of the Shannon Trough, almost certainly mark the traces of active down-to-basin faults that controlled its half-graben structure.The basement rocks of the two basins are clearly of a different nature; the Dublin Basin is floored by basement of a much more heterogeneous nature than the Shannon Trough, the former lying south and the latter north of the putative Iapetus Suture line.

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Section: Platform and Basin Phasesupporting

confidence: 59%

“…11; Somerville & Jones regional extent since it has been recorded in the 1985; Somerville et al 1992b) have now become northern England basins at this same time by available, and drilling activity is increasing. Ebdon et al (1990) and Adams et al (1990).…”

Section: I!i!iiiii' M6athfmrmentioning

confidence: 99%

Controls on ramp, platform and basinal sedimentation in the Dinantian of the Dublin Basin and Shannon Trough, Ireland

Strogen¹,

Somerville²,

Pickard³

et al. 1996

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“…Ramps may prograde from rifted margins across buried extensional faults and reactivation of these can profoundly influence depositional patterns (e.g. Ebdon et al 1990). In fact, submarine seismicity is a common trigger for resedimentation and mass flows (e.g.…”

Section: Sediment Supply Mechanismsmentioning

confidence: 99%

A review of sediment distributions and processes in Oligo-Miocene ramps of southern Italy and Malta (Mediterranean divide)

Pedley

1998

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Carbonate ramps lying on the divide between the Eastern and Western Mediterranean basins are considered in the context of the facies that dominate their inner to outer ramp profiles. They developed during the final stages of Tethyan ocean closure. Consequently, the ramp successions accumulated within an increasingly microtidal regime. The ramp facies associations are typical of mid- to late Tertiary developments found throughout the old Tethyan belt. A detailed consideration is given to carbonate productivity and location of the carbonate factory, substrate stability, resedimentation mechanisms, and synsedimentary tectonics. Gravity sliding in mid-ramp situations is examined and its importance in maintaining ramp profile is considered. The relative importance of all processes and their bearing on sustainable ramp development in both current-facing and leeward situations is discussed.

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“…The widespread extent of late Asbian/early Brigantian volcanism was probably caused by a phase of active rifting over much of northwestern Europe, including central England (Ebdon et al 1990). Rifting at this time is incorporated into a modelled section across the Market Drayton Horst into the North Staffordshire Basin (Fig.…”

Section: Chemical Parametersmentioning

confidence: 99%

“…The thickness of the tufts and rarity of non-volcanic rocks, especially the lack of limestones, indicates that the volcanic complex was largely subaerial, but the very predominance of tuffaceous material strongly suggests that much of the volcanic activity was phreatomagmatic or hydromagmatic in origin. It appears that the Apedale Tufts may be only a small part of a much larger volcanic complex, as many of the volcanic rocks are likely to have been eroded during the Brigantian (Ebdon et al 1990) or Silesian to early Permian (Variscan) inversion. For instance, in both Bowsey Wood and Bitterns Wood Boreholes, south of Apedale (Figs 10 & 11), Namurian rocks unconformably overlie the Astbury Asbian limestones, the intervening sequence bearing the late Asbian/early Brigantian volcanic rocks possibly having been eroded.…”

Section: Extent and Nature Of The Apedale Volcanic Centrementioning

confidence: 99%

The Apedale tuffs, North Staffordshire: probable remnants of a late Asbian/Brigantian (P1a) volcanic centre

Rees¹,

Cornwell²,

Dabek³

et al. 1996

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A borehole sunk in 1920–21 at Apedale, North Staffordshire, unexpectedly proved a tuff-dominated sequence, at least 840m thick, below a thin cover of Silesian sedimentary rocks. The tuffs were initially interpreted as Dinantian in age. However, there are similarities of form and lineament between an aeromagnetic anomaly centred upon Apedale and anomalies in the Welsh Marches associated with Neoproterozoic (Uriconian) rocks, suggesting that Neoproterozoic rocks occur at Apedale and that the tuffs in Apedale Borehole might also be of this age. Recent modelling of geophysical data shows that Apedale is underlain by two (magnetic) volcanic bodies — a deeper ridge of probable Uriconian rock, and a shallower, broadly stratiform body which includes the tuffs in the Apedale Borehole. Comparison of the tuffs at Apedale with others in the region suggests that they are of P1a (late Asbian to early Brigantian) age. Although our knowledge of the extent of the Apedale tuffs is poor, their thickness shows that they erupted from one of the largest centres of Dinantian volcanism in central England. The trace element geochemistry is very similar to that of Dinantian volcanic rocks in southwest England.

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The Dinantian stratigraphy of the East Midlands: a seismostratigraphic approach

Cited by 38 publications

References 31 publications

Controls on ramp, platform and basinal sedimentation in the Dinantian of the Dublin Basin and Shannon Trough, Ireland

Controls on ramp, platform and basinal sedimentation in the Dinantian of the Dublin Basin and Shannon Trough, Ireland

A review of sediment distributions and processes in Oligo-Miocene ramps of southern Italy and Malta (Mediterranean divide)

The Apedale tuffs, North Staffordshire: probable remnants of a late Asbian/Brigantian (P1a) volcanic centre

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