Search results

Jump to: navigation, search
  • ...the Upnor Formation) comprises reddish brown sand or interbedded sand and clay with abundant rounded to well-rounded, stained flint pebbles with locally g ...r of the formation consists of mottled, bright red and grey clay and silty clay, but also in shades of purple, brown and orange. The complex mottling has b
    4 KB (633 words) - 16:22, 28 July 2015
  • ...use is confined to three deposits in this district: sand and gravel, brick clay and chalk have been extracted in the past but there are no large-scale oper The Lambeth Group, London Clay Formation and various Quaternary deposits were used for brickmaking in the
    4 KB (583 words) - 16:23, 28 July 2015
  • ...s. Elsewhere there are residual deposits of Cenozoic sediments, such as ‘clay-with-flints’, preserved in fissures and hollows in the underlying strata, ...— depending on the iron minerals that are present in the silty or sandy clay.
    13 KB (2,066 words) - 17:10, 28 July 2015
  • ...anié deposits originating during the Palaeogene or Neogene (including the Clay-with-flints Formation, the Lenham Formation and the Buchan Gravels Formatio ...environments, although a relatively deep-water marine unit (the London Clay Formation) was laid down during times of high sea level in the Ypresian.
    31 KB (4,530 words) - 10:42, 10 August 2015
  • ...net Formation''' (previously the Thanet Sand formation) and the '''Ormesby Clay Member''', previously classified as a formation but now assigned to the Lis ...852">PRESTWICH, J. 1852. On the structure of the strata between the London Clay and the Chalk in the London and Hampshire Tertiary systems: Part III The Th
    235 KB (35,234 words) - 16:10, 31 July 2015
  • ...to when viewing images of the model in this report. Note that the Head and Clay-with-flints deposits are known to be polycyclic, and in the case of the lat | Fluvial deposits of modern flood plains, consisting of clay, silt, sand and peat
    10 KB (1,453 words) - 11:00, 10 August 2015
  • | London Clay Formation | ''Lower'''' Mottled Clay''
    1 KB (201 words) - 12:41, 7 December 2015
  • | Hales Clay Member | London Clay Basement Bed
    7 KB (949 words) - 12:36, 7 December 2015
  • | London Clay Formation | London Clay Formation
    3 KB (394 words) - 15:36, 5 May 2015
  • | WOLSTON CLAY | WOLSTON CLAY
    15 KB (1,753 words) - 10:30, 8 March 2016
  • ...e escarpment reaching a maximum elevation of around 280 m, overlooking the clay lowlands of the Thames valley. To the south the Chalk is unconformably over ...the Reading Formation (part of the Lambeth Group), overlain by the London Clay Formation, locally capped by river terrace gravels. These generate surface
    3 KB (412 words) - 15:12, 28 July 2015
  • | valign="center" | <span style="color:#ffffff">---</span>Head (clay-silt) | valign="center" | <span style="color:#ffffff">---</span>Clay-with-flints
    15 KB (2,308 words) - 16:19, 6 February 2017
  • | Thames Group, comprising London Clay Formation and Bagshot Formation | Silty clay/mudstone, sandy silts and sandy clayey silts of marine origin
    4 KB (544 words) - 16:01, 2 March 2018
  • ...in the model, such as the Thames Group (THAM), which is composed of London Clay Formation and Bagshot Formation.
    3 KB (515 words) - 16:01, 2 March 2018
  • | Mainly consists of silty clay and clayey silt. | style="background-color: #b39c7c;" | London Clay Formation
    7 KB (943 words) - 09:50, 19 October 2018
  • ...tely. Surfaces generated in the London Basin geological model (base London Clay Formation and base Thanet Sand Formation) were loaded into the City of Lond
    2 KB (400 words) - 09:50, 19 October 2018