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Thanet Sand Formation

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Simplified stratigraphy for the <span class="search-highlight">Thanet</span> <span class="search-highlight">Sand</span> <span class="search-highlight">Formation</span> and Lambeth Group. Th...
Published: 01 March 2017
Fig. 2. Simplified stratigraphy for the Thanet Sand Formation and Lambeth Group. The depositional sequences follow the interpretation by Knox (1996) of the early Palaeogene succession of southeast England. PETM = Paleocene–Eocene Thermal Maximum.
Journal Article
Journal: Clay Minerals
Published: 01 March 2017
Clay Minerals (2017) 52 (1): 25–50.
...Fig. 2. Simplified stratigraphy for the Thanet Sand Formation and Lambeth Group. The depositional sequences follow the interpretation by Knox (1996) of the early Palaeogene succession of southeast England. PETM = Paleocene–Eocene Thermal Maximum. ...
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Series: SEPM Special Publication
Published: 01 January 1995
DOI: 10.2110/pec.95.04.0275
EISBN: 9781565760912
...Abstract Abstract Ormesby Clay Formation mudstones in eastern Norfolk are the oldest upper Paleocene deposits (Chron C26r) of southern England. The base of the type Thanet Sand Formation (= start of the Thanetian Stage) is approximately 0.65 my younger (C26n). C25n is missing from...
Journal Article
Published: 09 September 2020
Quarterly Journal of Engineering Geology and Hydrogeology (2021) 54 (2): qjegh2020-024.
... Formation to Woolwich Formation) and the increasing presence of Thanet Sand Formation along the North Downs, east of approximately Leatherhead). The resulting ground model requires detailed knowledge of the microstructures of the chalk, the facies variation of Paleocene and Pliocene deposits, and temperate...
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Journal Article
Published: 01 February 2009
Quarterly Journal of Engineering Geology and Hydrogeology (2009) 42 (1): 5–20.
..., the tunnel alignment was unable to avoid the lower Palaeogene deposits of the Lambeth Group, and Thanet Sand Formation, as well as the underlying Chalk. These deposits were found to contain hazardous features, such as sand-filled channels, sub-artesian groundwater and hard ground, complicated further...
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Image
Piezometric amplitude v. distance from River Thames. RTD, River Terrace Dep...
Published: 15 January 2018
Fig. 6. Piezometric amplitude v. distance from River Thames. RTD, River Terrace Deposits; chalk, Chalk Group; UF/TS, Upnor Formation/Thanet Sand Formation.
Image
Neutron porosity and density (Dn) borehole geophysical logs for five boreho...
Published: 01 November 2011
Fig. 15 Neutron porosity and density (Dn) borehole geophysical logs for five boreholes in east London separated by 7 km. The upper part of the logs (pale yellow) is in the Palaeogene Thanet Sands Formation and the lower part is in the Seaford Chalk Formation.
Image
Farringdon Station geology ( Davis &amp; Duarte 2015 ). MG, made ground; RT...
Published: 15 May 2019
Fig. 7. Farringdon Station geology ( Davis & Duarte 2015 ). MG, made ground; RTD, River Terrace deposits; LG, Lambeth Group; UMB, Upper Mottled Beds; LMB, Lower Mottled Beds; LB, Laminated Beds; LSB, Lower Shelley Beds; UF, Upnor Formation; TS, Thanet Sand Formation.
Image
Representative XRD traces of typical clay mineral assemblages from the Late...
Published: 01 March 2006
F ig . 10. Representative XRD traces of typical clay mineral assemblages from the Late Paleocene and Early Eocene (a) Ormesby Clay Formation, (b) Thanet Sand Formation, (c) Upnor Formation, (d) Woolwich Formation, (e) Reading Formation, (f) Harwich Formation. S = smectite, I = illite, K = kaolin
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(a) BSEM image showing the fracturing of granules that occurs during glauco...
Published: 01 March 2017
Fig. 4. (a) BSEM image showing the fracturing of granules that occurs during glaucony evolution (arrows). This indicates in situ evolution of the granules because reworking would disperse the fragments. Scale bar = 500 µm. (b) BSEM image of nascent glaucony (NG) from the Thanet Sand Formation
Image
Three-dimensional geological map of London (UK) viewed looking from the wes...
Published: 01 August 2015
by the Thanet Sand Formation (dark blue), the sands, silts and clays of the Lambeth Group (orange), and the London Clay Formation (beige). The other coloured overlays (pink, yellow, tan, and brown) are various clay and gravel formations and glaciofluvial deposits. R eproduced with the permission of the B
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XRD traces; vertical scales are counts per second. (a) &lt;2 µm fraction of...
Published: 01 March 2017
for the <2 µm fraction of glaucony pellets from the Thanet Sand Formation, sample Shadwell 9; (c) XRD trace of magnetically separated glaucony from weathered sample Vauxhall A2. The pellets were disaggregated and ground very gently prior to scanning.
Image
UF, Upnor <span class="search-highlight">Formation</span>; TS, <span class="search-highlight">Thanet</span> <span class="search-highlight">Sand</span>; CK, Chalk; GWL, groundwater level.
Published: 15 January 2018
Fig. 5. UF, Upnor Formation; TS, Thanet Sand; CK, Chalk; GWL, groundwater level.
Journal Article
Published: 01 May 2011
Quarterly Journal of Engineering Geology and Hydrogeology (2011) 44 (2): 221–232.
... as the Thanet Sand Formation, with the lower part and invert excavated in the underlying Seaford Chalk Formation. With reference to the pre-construction geological model for the tunnel, the London Clay Formation thickens significantly to the west of the scheme in addition to the Harwich Formation becoming...
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Journal Article
Published: 15 January 2018
Quarterly Journal of Engineering Geology and Hydrogeology (2018) 51 (1): 31–37.
...Fig. 6. Piezometric amplitude v. distance from River Thames. RTD, River Terrace Deposits; chalk, Chalk Group; UF/TS, Upnor Formation/Thanet Sand Formation. ...
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Image
Collected resistivity data plus porosity and saturation. (a) topsoil; (b) n...
Published: 01 May 2006
Fig. 1 Collected resistivity data plus porosity and saturation. (a) topsoil; (b) non-calcareous brickearth; (c) calcareous brickearth; (d) sandy brickearth with flint clasts; (e) sand (Thanet Formation); (f) sand with flint gravel and cobbles (Thanet Formation).
Journal Article
Published: 15 January 2018
Quarterly Journal of Engineering Geology and Hydrogeology (2018) 51 (1): 38–48.
...Fig. 5. UF, Upnor Formation; TS, Thanet Sand; CK, Chalk; GWL, groundwater level. ...
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Journal Article
Published: 13 November 2017
Quarterly Journal of Engineering Geology and Hydrogeology (2018) 51 (1): 23–30.
... of pumping tests was carried out in the different strata: Harwich Formation, sand units in Lambeth Group (above the Mid Lambeth Hiatus), Upnor Formation, Thanet Sand and Chalk ( Roberts et al . 2015 ). These tests were crucial for the design of the dewatering of the lower aquifer. Table 2 summarizes...
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Journal Article
Published: 01 November 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (4): 405–414.
... of the Fleet River. The tunnels will therefore lie partly within the Lambeth Group and the Thanet Sand Formation, which underlie the London Clay ( Fig. 1c ; Table 1 ). Fig. 1. Location of Farringdon 3D geological model. ( a , b ) Outline position of London indicated by the M25 orbital motorway. ( b...
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Journal Article
Published: 15 May 2019
Quarterly Journal of Engineering Geology and Hydrogeology (2019) 52 (4): 425–434.
...Fig. 7. Farringdon Station geology ( Davis & Duarte 2015 ). MG, made ground; RTD, River Terrace deposits; LG, Lambeth Group; UMB, Upper Mottled Beds; LMB, Lower Mottled Beds; LB, Laminated Beds; LSB, Lower Shelley Beds; UF, Upnor Formation; TS, Thanet Sand Formation. ...
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