In geology, clay-with-flints was the name given by William Whitaker in 1861 to a peculiar deposit of stiff red, brown or yellow clay containing unworn whole flints as well as angular shattered fragments, also with a variable admixture of rounded flint, quartz, quartzite and other pebbles.[1]
The Formation is associated with deposits of the Chalk Group, subsequent Palaeogene and Neogene strata, and occasionally Upper Greensand.[2] It occurs in sheets or patches of various sizes over a large area in the south of England, from Hertfordshire on the north to Sussex on the south, and from Kent on the east to Devon on the west. It almost always lies on the surface of the Upper Chalk, but in Dorset it passes on to the Middle and Lower Chalk, and in Devon it is found on the Chert-Beds of the Selbornian group.[1][3]
Originedit
The formation is now considered to be a combination of residual and cryoturbated strata, and to be of a variety of ages.[4][5]
^Cooper, Mark R.; Troll, Valentin R.; Lemon, Kirstin (November 2018). "The 'Clay-with-Flints' deposit in Northern Ireland: reassessment of the evidence for an early Paleocene ignimbrite". Geological Magazine. 155 (8): 1811–1820. Bibcode:2018GeoM..155.1811C. doi:10.1017/S0016756817000760. ISSN 0016-7568. S2CID 54505871.
^A. J. Jukes-Browne, "The Clay-with-Flints, its Origin and Distribution,” Q.J.G.S., vol. lxii., 1906, p. 132
^Anon. "Clay-with-flints Formation". The BGS Lexicon of Named Rock Units. BGS. Retrieved 3 May 2017.
^Gallois, R. W. (2009). "The origin of the Clay-with-flints: the missing link". Geoscience in South-West England. 12: 153–161.
This article incorporates text from a publication now in the public domain: Howe, John Allen (1911). "Clay-with-Flints". In Chisholm, Hugh (ed.). Encyclopædia Britannica. Vol. 6 (11th ed.). Cambridge University Press. pp. 475–476.
clay, with, flints, this, article, multiple, issues, please, help, improve, discuss, these, issues, talk, page, learn, when, remove, these, template, messages, this, article, require, cleanup, meet, wikipedia, quality, standards, cleanup, reason, been, specifi. This article has multiple issues Please help improve it or discuss these issues on the talk page Learn how and when to remove these template messages This article may require cleanup to meet Wikipedia s quality standards No cleanup reason has been specified Please help improve this article if you can September 2011 Learn how and when to remove this message This article needs to be updated Please help update this article to reflect recent events or newly available information May 2017 Learn how and when to remove this message In geology clay with flints was the name given by William Whitaker in 1861 to a peculiar deposit of stiff red brown or yellow clay containing unworn whole flints as well as angular shattered fragments also with a variable admixture of rounded flint quartz quartzite and other pebbles 1 Contents 1 Occurrence 2 Origin 3 References 4 External linksOccurrence editThe Formation is associated with deposits of the Chalk Group subsequent Palaeogene and Neogene strata and occasionally Upper Greensand 2 It occurs in sheets or patches of various sizes over a large area in the south of England from Hertfordshire on the north to Sussex on the south and from Kent on the east to Devon on the west It almost always lies on the surface of the Upper Chalk but in Dorset it passes on to the Middle and Lower Chalk and in Devon it is found on the Chert Beds of the Selbornian group 1 3 Origin editThe formation is now considered to be a combination of residual and cryoturbated strata and to be of a variety of ages 4 5 References edit a b Howe 1911 p 475 Cooper Mark R Troll Valentin R Lemon Kirstin November 2018 The Clay with Flints deposit in Northern Ireland reassessment of the evidence for an early Paleocene ignimbrite Geological Magazine 155 8 1811 1820 Bibcode 2018GeoM 155 1811C doi 10 1017 S0016756817000760 ISSN 0016 7568 S2CID 54505871 A J Jukes Browne The Clay with Flints its Origin and Distribution Q J G S vol lxii 1906 p 132 Anon Clay with flints Formation The BGS Lexicon of Named Rock Units BGS Retrieved 3 May 2017 Gallois R W 2009 The origin of the Clay with flints the missing link Geoscience in South West England 12 153 161 nbsp This article incorporates text from a publication now in the public domain Howe John Allen 1911 Clay with Flints In Chisholm Hugh ed Encyclopaedia Britannica Vol 6 11th ed Cambridge University Press pp 475 476 External links editClay with Flints in the British Geological Survey lexicon Retrieved from https en wikipedia org w index php title Clay with Flints amp oldid 1175447687, wikipedia, wiki, book, books, library,
