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Downton Castle Formation

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Journal Article
Published: 01 December 1989
Journal of the Geological Society (1989) 146 (6): 897-900.
... in salinity in the restricted Downton sea shortly before its elimination by Acadian uplift. The boundary between the Upper Whitcliffe Formation (Ludlow) and the overlying Downton Castle Sandstone Formation (Pridoli), formerly proposed as the stratotype section for the base of the fourth Series of the Silurian...
Journal Article
Published: 01 August 1991
Journal of the Geological Society (1991) 148 (4): 781-784.
... Abstract R. B. Ainsworth writes: Richardson & Rasul (1990) attempt to compare the depositional environments inferred from their palynofacies analyses of the Upper Whitcliffe Formation and Downton Castle Sandstone Formation ‘with those proposed previously from sedimentological data’. However...
Journal Article
Published: 01 August 1990
Journal of the Geological Society (1990) 147 (4): 675-686.
...J. B. RICHARDSON; S. M. RASUL Abstract The Upper Whitcliffe and lower part of the Downton Castle Sandstone Formations (Ludlow and Pridoli Series) have been sampled from sequences distributed over an area roughly 4800 square km in west-central England and Wales. Ludfordian age rocks have been...
Journal Article
Published: 01 January 2016
Journal of Micropalaeontology (2016) 35 (1): 62-65.
..., Downton, Shropshire, UK [SO 4560 7525], the Downton Bone Bed lies within the Platyschisma Shale Member of the Downton Castle Sandstone Formation. The Platyschisma Shale Member was long considered to be of Přídolí age, but Loydell & Frýda (2011) presented numerous lines of biostratigraphical...
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Image
Diversity trends of acritarchs, chlorophytes, prasinophytes, and total phyt...
in > Palynology
Published: 01 January 2009
columns are as follows: W = Wenlock; Pr = Přídolí; MWLF = Much Wenlock Limestone Formation; UBF = Upper Bringewood Formation; ULF = Upper Leintwardine Formation; and DCSF = Downton Castle Sandstone Formation.
Image
Comparison of diversity trends for the organic-walled phytoplankton during ...
in > Palynology
Published: 01 January 2009
are as follows: ULF = Upper Leintwardine Formation; and DCS = Downton Castle Sandstone Formation.
Series: Geological Society, London, Geology of Series
Published: 01 January 2006
DOI: 10.1144/GOEWP.8
EISBN: 9781862393882
.... The presence of modiolopsids and lingulids in life position associated with flaser and lenticular-bedded sandstones indicates a marine influence. Across the Welsh Borderland–Midland Platform area, marine, wave-dominated conditions persisted within the Downton Subgroup (the Downton Castle Sandstone Formation...
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Journal Article
Published: 01 November 2013
Journal of Paleontology (2013) 87 (6): 1041-1059.
... Bone Bed and Downton Castle Sandstone Formation of the Welsh Borderland and southern Britain ( Vergoossen, 1999a , 2000 ; Turner, 1973 , 2000 ; Märss and Miller, 2004 ). Loydell and Frýda (2011 ) proposed a radical new dating of mid-Ludfordian (Ludlow) rather than Přídolí for the Ludlow Bone Bed...
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Journal Article
Published: 01 November 2000
Scottish Journal of Geology (2000) 36 (2): 115-121.
... of Swatara Gap, New York, has a carapace with a length to width ratio of 0.75, a slender opisthosoma and a bluntly lanceolate telson. P. salteri Kjellesvig-Waering, 1961 from the Upper Silurian Downton Castle and Temeside Formations of the Welsh borders, has a carapace with a length to width ratio of 0.6...
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Journal Article
Published: 02 August 2013
Geological Magazine (2013) 151 (3): 472-490.
... of the Downton Castle Sandstone Formation represented at its base by the Ludlow Bone Bed (Aldridge & Schönlaub, 1989 ; Miller, 1995 ). This is confirmed by independent dating based on chitinozoans (Jaglin & Paris, 2002 ) from Libya where a miospore assemblage correlated...
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Journal Article
Published: 01 November 2003
Geological Magazine (2003) 140 (6): 627-647.
... by Wenlock time. The question is for how much longer did convergence continue? There are two lines of evidence. Kemp (1987 a , b ) recorded a decrease in the intensity of accretionary deformation between the early Wenlock Ross Formation and the mid- to late Wenlock Raeberry Castle Formation...
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Upper Silurian to Lower Devonian stratigraphic framework. The graptolite bi...
in > Palynology
Published: 01 January 2009
Leintwardine Formation; ULF = Upper Leintwardine Formation; LWF = Lower Whitcliffe Formation; UWF = Upper Whitcliffe Formation; and DCS = Downton Castle Sandstone Formation. GONDWANA: Armorica; Landev = Landévennec Formation; and PAB = Pont-aux-Bouchers. Argentina; Co = Copo Formation.
Journal Article
Journal: Geology
Published: 01 May 2004
Geology (2004) 32 (5): 381-383.
.... Fossils were isolated by sieving hydrofluoric acid bulk macerates of siltstones of the Platyschima Shale Member of the Downton Castle Formation at Ludford Lane, Ludlow, England. The isolated palynomorphs belong to the tripapillatus-spicula sporomorph assemblage biozone and confirm a Prídolí age...
FIGURES
Series: Geological Society, London, Special Reports
Published: 01 January 1992
DOI: 10.1144/SR21.1
EISBN: 9781786202840
... and is succeeded by greyish-yellow sandstones and siltstones comparable with the Downton Castle Sandstone Formation of Shropshire. The problem of recognition of the base of the Devonian in the Old Red Sandstone facies is gradually being solved by the palynological approach of Richardson & McGregor (1986...
Series: Geological Society, London, Geology of Series
Published: 01 January 2006
DOI: 10.1144/GOEWP.4
EISBN: 9781862393882
... into stages. The global boundary stratotype for the base of the series is placed in fully marine graptolite-bearing rocks in the Czech Republic. In Wales and the Welsh Borderland the Přídolí is represented by lithostratigraphical units such as the Downton Group (e.g. Downton Castle Sandstone Formation of Fig...
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Journal Article
Published: 01 September 2006
Geological Magazine (2006) 143 (5): 723-735.
... Hill golf course, Kington, Herefordshire, (2) Perton, Stoke Edith, Herefordshire and (3) Ludlow, Shropshire, all in the Welsh Borderlands, England (Fig. 1 ) and in two different horizons, the Ludlow Bone Bed Member, Downton Castle Sandstone Formation (Ludlow and Kington) and the overlying Temeside...
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Book Chapter

Author(s)
David J. Siveter
Series: The Micropalaeontological Society, Special Publications
Published: 01 January 2009
DOI: 10.1144/TMS003.3
EISBN: 9781862396210
... point of reference in the mid-20th century’. During the period 1900–1960 there were very few publications about British Silurian ostracods. These, however, included the studies of Straw (1928, 1930, 1933) , who noted the possible biostra-tigraphical potential of Ludlow and ‘Downton’ ostracods...
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Journal Article
Published: 01 May 2005
Proceedings of the Yorkshire Geological Society (2005) 55 (3): 173-182.
... Foot coal seam roof shales, Upper Westphalian A, Upper Carboniferous. Westhoughton, 3 miles east of Wigan, Lancashire [SD 669 004]. Anderson et al. 1999 , p. 326. Eurypterid indet.      FIGURED LL.l 1117. Platyschisma Shale Member, Downton Castle Sandstone Formation, (above the Ludlow Bone...
Journal Article
Journal: Palynology
Published: 01 January 2009
Palynology (2009) 33 (1): 25-75.
... columns are as follows: W = Wenlock; Pr = Přídolí; MWLF = Much Wenlock Limestone Formation; UBF = Upper Bringewood Formation; ULF = Upper Leintwardine Formation; and DCSF = Downton Castle Sandstone Formation. ...
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Series: Geological Society, London, Special Publications
Published: 01 January 2000
DOI: 10.1144/GSL.SP.2000.180.01.04
EISBN: 9781862394285
... transversely dispersing from a source area north of the boundary fault and interacting with basin-floor playas, whereas the later finer-grained Keadew Formation preserves a basin axial dispersal of sand-rich sheetfloods (Simon 1984 ). The complex Fintona Basin is bounded to the north by the Castle Archdale...
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