Preliminary note on the breamrock formation (upper devonian), county cork, ireland—an ancient tidal deposit

Kuijpers, Eric P.

doi:10.1016/0037-0738(71)90020-0

Cited by 5 publications

(1 citation statement)

References 3 publications

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“…Although the lower part of the Old Head Formation was not studied in detail, a widespread replacement of tidally influenced facies by wave‐influenced facies is reported (De Raaf & Boersma, 1971; Kuijpers, 1971, 1972; Van Gelder, 1974; Graham, 1975a; Bamford, 1988). In the overlying section which is included in this study (middle and upper parts of the LN biozone; Fig.…”

Section: Depositional Interpretationmentioning

confidence: 99%

The evolution of a thick shallow marine succession, the South Munster Basin, Ireland

Quin

2008

Sedimentology

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The relatively fine-grained Late Devonian to Early Carboniferous 'Cork Beds' succession of the South Munster Basin includes continuous sections of paralic facies that are over 1000 m thick and individual sandstone units over 300 m thick. However, the succession does not reflect prolonged phases when facies belts were stationary, but rather multiple stacking of small-scale, highfrequency sequences, each associated with pronounced migration of shorelines. What seems to have been unusual about the South Munster Basin succession was that the geographical positioning of these high-frequency sequences was fixed. This resulted from an unusual combination of tectonics, shelf hydrodynamics, sedimentation rates and the textural maturity of the sediment within the basin. Of these, tectonics was probably most critical, particularly the juxtaposition of rapid subsidence in basinal areas and a basin margin zone (to the north) that was sufficiently up-standing to pin the maximum extent of transgression during repeated highstands of sea-level, yet not so upstanding as to have diverted the major regional drainage system. The embayed palaeogeography of the area may also have been influential.

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Section: Depositional Interpretationmentioning

confidence: 99%

The evolution of a thick shallow marine succession, the South Munster Basin, Ireland

Quin

2008

Sedimentology

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Facies relationships in the Upper Devonian‐Lower Carboniferous of southwest Ireland and adjacent regions

Naylor¹,

Jones

Matthews³

1974

Geological Journal

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In southwest Ireland 2,500 m of Upper Famennian to basal Namurian marine sandstones and mudstones, the Cork Beds, overlie rocks of Old Red Sandstone facies. Coastal exposures of the Cork Beds are interpreted as showing gradual upward change from alluvial strata, through thick subtidal and shelf sediments to pyritic muds. A review of recent palaeontological evidence shows that the thick shallow marine part of the Cork Beds is older than the major development of limestones north of the Cork Harbour-Kenmare line, whose equivalents to the south are in the condensed basinal sediments. The Lower Carboniferous portion of the Cork Facies is shown to be thicker in South Cork than in West Cork. In Lower Carboniferous times a positive area-the Glandore High-separated two subbasins with different depositional histories. Six palaeogeographic maps are used to demonstrate the progressive shift of facie belts as Lower Carboniferous marine transgression progressed. Finally, brief comparison is made with rocks of the same age in southwest England.

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Analysis of an Upper Palaeozoic transgressive sequence in southwest County Cork, Eire

Graham

1975

Sedimentary Geology

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Preliminary note on the breamrock formation (upper devonian), county cork, ireland—an ancient tidal deposit

Cited by 5 publications

References 3 publications

The evolution of a thick shallow marine succession, the South Munster Basin, Ireland

The evolution of a thick shallow marine succession, the South Munster Basin, Ireland

Facies relationships in the Upper Devonian‐Lower Carboniferous of southwest Ireland and adjacent regions

Analysis of an Upper Palaeozoic transgressive sequence in southwest County Cork, Eire

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