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Plenus Marl

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Journal Article
Published: 01 November 1991
Geological Magazine (1991) 128 (6): 603–632.
Journal Article
Published: 01 July 2000
Journal of the Geological Society (2000) 157 (4): 745–757.
... at the base of the Plenus Marls Member, and the other with a marked drop in surface water productivity near the top of the same unit. Faunal change is demonstrated to be largely a pattern of immigration–emigration rather than true extinction, and our sequence stratigraphical analysis shows...
FIGURES | View All (6)
Series: SEPM Special Publication
Published: 01 January 1999
DOI: 10.2110/pec.98.02.0329
EISBN: 9781565760936
... to coincide with a basin subsidence event resulting in a rapid increase of accommodation space in the upper lower, middle and upper Cenomanian. Rates of sedimentation are moderate in most of the Cenomanian but appear to slow in the uppermost part (Plenus Marl). Robaszynski et al. (this volume) identify 6...
Journal Article
Journal: Geology
Published: 01 February 1990
Geology (1990) 18 (2): 175–178.
...R. M. Corfield; M. A. Hall; M. D. Brasier Abstract Oxygen and carbon isotope analyses of several species of size-controlled planktonic and benthic foraminifera from the Plenus Marls of Dover (Kent, England) show a clear separation in oxygen and carbon isotope ratios consistent with different...
Journal Article
Published: 01 January 2009
Journal of the Geological Society (2009) 166 (1): 115–127.
...B.W. Lauridsen; A.S. Gale; F. Surlyk Abstract: Cenomanian chalk–marl couplets from England represent the 20 ka Milankovitch precession cycle. Fossil communities from both chalk and marl are identified to test if the orbital fluctuations and the associated changes in substrate lithology and climate...
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Journal Article
Journal: Geology
Published: 01 February 2016
Geology (2016) 44 (2): 151–154.
...., 2013 ). Red bar represents volcanic pulse coincident with positive ε Nd excursion; yellow band shows levels of boreal faunas (the Plenus Marl Beds 4–8; i.e., Plenus cold event); blue bar is transient cooling based on combined geochemical and faunal evidence from same section ( Zheng et al., 2013...
FIGURES
Journal Article
Journal: Geology
Published: 22 March 2018
Geology (2018) 46 (5): 463–466.
...-rich sediments, and the liberation of previously buried Zn during an episode of widespread seafloor re-oxygenation during OAE 2 (the Plenus Cold Event). Figure 1. Schematic representation of Zn-isotope systematics based on data compiled by Little et al. (2014 , 2016) and Vance et al. (2016...
FIGURES
Journal Article
Published: 01 May 2012
Quarterly Journal of Engineering Geology and Hydrogeology (2012) 45 (2): 161–172.
... above the water table for c . 5 m, coincident with the Plenus Marls at the base of the Holywell Nodular Chalk. The upper wet horizon is illustrated in Figure 8 . It can be seen from this figure that there is a clear film of water over the marl, but that this is rapidly reabsorbed by the chalk matrix...
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Image
The 4D stress changes computed above the reservoirs within the lower part o...
Published: 01 May 2007
Figure 7. The 4D stress changes computed above the reservoirs within the lower part of the chalk formations (Hod to Plenus Marl). The extensional stress changes above Franklin are relatively small compared to Elgin and Shearwater.
Book Chapter

Author(s)
Ian J. Slipper
Series: The Micropalaeontological Society, Special Publications
Published: 01 January 2009
DOI: 10.1144/TMS003.14
EISBN: 9781862396210
... was good, but the logs gave no information concerning the macrofaunal biozones. More recent work at the University of Greenwich includes the work of Johnson (1996 a, b, 1998) , who studied the biogeographical distribution of Ostracoda in the Plenus Marls during what was termed the Cenomanian- Turonian...
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Series: Geological Society, London, Special Publications
Published: 01 January 2012
DOI: 10.1144/SP364.10
EISBN: 9781862396128
..., the intersection of the low-permeability Plenus Marls with the dry period water table, the confining London Clay, and with faulting across the Frome and Piddle catchments. ( b ) Section down the Devil's Brook with observed groundwater levels, losing and gaining reaches, and inferred groundwater table: Plenus Marls...
FIGURES | View All (12)
Series: SEPM Special Publication
Published: 01 January 2009
DOI: 10.2110/sepmsp.091.153
EISBN: 9781565762961
... of the Brochterbeck Formation (Fig. 7A, Fig. 9A) towards red marls and marly limestones. In Lower Saxony and Sachsen-Anhalt, it marks the base of the Sohlde Formation and the base of the Lower Rotplaner of traditional usage. The top of the plenus Bed (Fig. 7B) is a regional undulating erosional surface with large...
Image
XRD patterns of glycerolated clay fractions (<0.2 μm, 0.2–1 μm, 1–2 μm) ...
Published: 01 March 2006
. (b) Smectite assemblage, Sample Ysa85, Plenus Marls, Flixton, Yorkshire.
Journal Article
Published: 30 November 2016
Journal of Paleontology (2017) 91 (1): 25–72.
...Luis O’Dogherty; Špela Goričan; Hans-Jürgen Gawlick Abstract Cherty limestones, marls and radiolarites are widespread in the Hallstatt Mélange of the Northern Calcareous Alps. The mélange was formed during the Neotethyan orogeny in a series of deep-water basins that progressively developed in front...
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Image
Plots of palaeoproductivity indices against stratigraphic height through th...
Published: 01 July 2000
Fig. 4. Plots of palaeoproductivity indices against stratigraphic height through the latest Cenomanian–earliest Turonian. Total organic carbon and the abundance of selected calcareous nannofossils, foraminifera and calcispheres are plotted. Plenus Marls Member Bed 1 (couplets E1–E3) and Bed 8
Image
Location of Culver Cliff and the Cenomanian study section. Modified from  P...
Published: 01 July 2001
the resolution of the map) to the traditional mapping unit ‘Lower Chalk’, the Turonian to the ‘Middle Chalk’, and the Coniacian–Campanian to the ‘Upper Chalk’. The outcrop of individual members of the Lower Chalk, the Glauconitic Marl (base), Chalk Marl, Grey Chalk, and Plenus Marl (summit), cannot
Image
Reconstruction of shelf profile in southern England and west of the UK duri...
Published: 01 July 2000
Fig. 6. Reconstruction of shelf profile in southern England and west of the UK during time of deposition of ( a ) the Lower Chalk (Cenomanian) and ( b ) the highest Plenus Marls Member (Bed 8) and the basal White Chalk Formation (latest Cenomanian and Early Turonian). For most of the Cenomanian
Image
Plots of surface area available for macrofossil collection, sedimentation r...
Published: 01 July 2000
on >1800 individuals collected from air-weathered surfaces. Numbers of specimens and species of calcitic macrofossils and species turnover are derived from data in Paul & Donovan (1998). Plenus Marls Member Bed 1 (couplets E1–E3) and Bed 8 (couplet E7) are highlighted for reference.
Image
Cenomanian/Turonian boundary section at Eastbourne Gun Gardens, East Sussex...
Published: 01 September 2006
Figure 5. Cenomanian/Turonian boundary section at Eastbourne Gun Gardens, East Sussex. This locality offers the most expanded stage boundary section in the chalk facies of NW Europe ( Paul et al. 1999 ) and is widely used as a reference section for stable-isotope studies. Plenus Marl bed
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XRD patterns of clay mineral assemblages (<2 μm) from the Chalk Group of...
Published: 01 March 2006
), Plenus Marls, Flixton, Yorkshire.