https://earthwise.bgs.ac.uk/index.php?title=Chronostratigraphy_of_the_Chalk_Group_-_Santonian_Stage&feed=atom&action=historyChronostratigraphy of the Chalk Group - Santonian Stage - Revision history2024-03-28T17:09:24ZRevision history for this page on the wikiMediaWiki 1.41.0https://earthwise.bgs.ac.uk/index.php?title=Chronostratigraphy_of_the_Chalk_Group_-_Santonian_Stage&diff=2056&oldid=prevDbk: /* Constituent Chalk Group lithostratigraphical units in the UK */2013-10-02T13:36:35Z<p><span dir="auto"><span class="autocomment">Constituent Chalk Group lithostratigraphical units in the UK</span></span></p>
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</table>Dbkhttps://earthwise.bgs.ac.uk/index.php?title=Chronostratigraphy_of_the_Chalk_Group_-_Santonian_Stage&diff=2055&oldid=prevDbk: Created page with " The Santonian stage was first defined by Coquand (1857), and presumably named after the village of Saintes in SW France (Lamolda & Hancock, 1996). ===Definition of base of ..."2013-10-02T13:36:22Z<p>Created page with " The Santonian stage was first defined by Coquand (1857), and presumably named after the village of Saintes in SW France (Lamolda & Hancock, 1996). ===Definition of base of ..."</p>
<p><b>New page</b></p><div><br />
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The Santonian stage was first defined by Coquand (1857), and presumably named after the village of Saintes in SW France (Lamolda & Hancock, 1996).<br />
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===Definition of base of stage===<br />
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The lowest occurrence of the inoceramid bivalve ''Cladoceramus undulatoplicatus'' (Lamolda & Hancock, 1996).<br />
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===Constituent Chalk Group lithostratigraphical units in the UK===<br />
<u>Integrated southern England Chalk Group lithostratigraphy</u>: Seaford Chalk Formation (pars) and Newhaven Chalk Formation (pars)<br />
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<u>Northern England</u>: Flamborough Chalk Formation (pars)<br />
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<u>East Anglia</u>: Upper Chalk (pars)<br />
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<u>N. Ireland</u>: Cloghfin Sponge Beds Member, Galboly Chalk Member, Cloghastucan Chalk Member<br />
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<u>North Sea</u>: Mackerel Formation (pars)<br />
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{| class="wikitable" width="400pt" style="margin-left:0px; margin-bottom:20px; float:left; text-align:left;"|+ Constituent macrofossil biozones in the UK<br />
|+ Constituent macrofossil biozones in the UK<br />
|-<br />
| rowspan="3" | SANTONIAN<br />
| ''M.testudunarius''<br />
|<br />
|-<br />
| ''U.socialis''<br />
|-<br />
| ''M.coranguinum'' (pars)<br />
| Upper ''H.rostrata'' Zone<br>(Northern England only)<br />
|}<br />
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===Lithostratigraphical marker-beds for the base of the stage===<br />
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<u>Southern England</u>: Michael Dean Flint<br />
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<u>Northern England</u>: ? between Middleton Top Marl and the High Stacks Flint (Burnett & Whitham, 1999)<br />
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<u>East Anglia</u>: ? an un-named flint at 366.5 m depth in the BGS Trunch Borehole [TG 2933 3455] in north Norfolk (Wood et al., 1994); boundary poorly defined in remainder of East Anglia<br />
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<u>N. Ireland</u>: basal part of stage not represented by Chalk Group strata<br />
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===References===<br />
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'''BURNETT, J A & WHITHAM, F. '''Correlation between the nannofossil and macrofossil biostratigraphies and the lithostratigraphy of the Upper Cretaceous of NE England. ''Proceedings of the Yorkshire Geological Society'', '''52''', 371-381.<br />
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'''COQUAND, H'''. 1857. Position des Ostrea columba et biauriculata dans le groupe de la craie inférieure. ''Bulletin de la Société géologique de France'' (2), '''14''', 745-766.<br />
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'''LAMOLDA, M A & HANCOCK, J M.''' 1996. The Santonian Stage and substages. ''Bulletin de l'Institut Royal des Sciences Naturelles de Belgique'', '''66-Supp''', 95-102.<br />
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'''WOOD, C J, MORTER, A A & GALLOIS, R W'''. Appendix 1: Upper Cretaceous stratigraphy of the Trunch Borehole. ''In'' '''ARTHURTON, R S, BOOTH, S J, MORIGI, A N, ABBOTT, M A W & WOOD, C J'''. 1994. Geology of the country around Great Yarmouth. ''Memoir of the British Geological Survey.''<br />
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[[category:Chronostratigraphy of the Chalk Group | 04]]</div>Dbk