Palaeoceanographic events in the Middle Cenomanian of Northwest Europe

Paul, C. R. C.; Mıtchell, Sımon F.; Marshall, J. D.; Leafy, P.N.; Gale, Andrew S.; Duane, A.M.; Ditchfield, Peter

doi:10.1006/cres.1994.1039

Cited by 84 publications

(77 citation statements)

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“…Additional biostratigraphic sources: Culver Cliff -Jarvis, Murphy & Gale (2001); Dover -Jenkyns, Gale & Corfield (1994), Gale (1995Gale ( , 1996; Trunch -Wood, Morter & Gallois (1994); Speeton -Mitchell (1996), Mitchell, Paul & Gale (1996). Isotope data sources: Culver Cliff - Paul et al (1994b), Jarvis, Murphy & Gale (2001); Dover -Jenkyns, Gale & Corfield (1994) ;Lamolda, Gorostidi & Paul (1994), Mitchell (1996); Trunch -(this study); Speeton -Mitchell, Paul & Gale (1996). Reported δ 13 C values of Paul et al (1994b) and Mitchell, Paul & Gale (1996) increased by + 0.18 ‰ to correct offset with data of Jenkyns, Gale & Corfield (1994) rhotomagense Zone, to form a second larger peak with a value of 2.9 ‰ (Mid-Cenomanian Event Ib, Fig.…”

Section: A5 Mid-cenomanian Event Imentioning

confidence: 99%

“…Jarvis et al (1988a) documented carbon-and oxygen-isotope curves across the Cenomanian/Turonian boundary. The isotope data reported here are those of Jenkyns, Gale & Corfield (1994), replotted against our revised logs, with additional higher resolution sample data for the Middle Cenomanian from Paul et al (1994b) and Mitchell, Paul & Gale (1996), and for the Cenomanian/Turonian boundary interval from Lamolda, Gorostidi & Paul (1994).…”

Section: B East Kent (Cenomanian-campanian)mentioning

confidence: 99%

“…7) documented the δ 13 C profile of the Campanian at Whitecliff. Paul et al (1994b, fig. 3) described carbon-isotope variation in the lower Middle Cenomanian of Culver Cliff, and Jarvis, Murphy & Gale (2001, fig.…”

Section: C Culver Cliff Isle Of Wight (Cenomanian-campanian)mentioning

confidence: 99%

“…Section details have been provided by Hill (1888), Jeans (1973Jeans ( , 1980, Paul et al (1994b), Gale (1995), Mitchell (1995Mitchell ( , 1996, Mitchell, Paul & Gale (1996) and Mortimore, Wood & Gallois (2001). A highresolution carbon-isotope stratigraphy of the Upper Albian-basal Turonian has been documented by Mitchell and co-workers (references above); the stratigraphic and δ 13 C data presented here are those of Mitchell, Paul & Gale (1996, fig.…”

Section: D Speeton North Yorkshire (Cenomanian)mentioning

confidence: 99%

“…The litho-, bio-and chemostratigraphy of the basal Middle Cenomanian in England and northern France was described in detail by Paul et al (1994b), who documented a bed-scale cyclostratigraphic and δ 13 C correlation between their sections. At Dover, carbonisotope values increase sharply from the base of the Cunningtoniceras inerme Zone (Fig.…”

Section: A5 Mid-cenomanian Event Imentioning

confidence: 99%

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Secular variation in Late Cretaceous carbon isotopes: a new δ¹³C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

et al. 2006

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-Carbon stable-isotope variation through the Cenomanian-Santonian stages is characterized using data for 1769 bulk pelagic carbonate samples collected from seven Chalk successions in England. The sections show consistent stratigraphic trends and δ 13 C values that provide a basis for highresolution correlation. Positive and negative δ 13 C excursions and inflection points on the isotope profiles are used to define 72 isotope events. Key markers are provided by positive δ 13 C excursions of up to + 2 ‰: the Albian/Cenomanian Boundary Event; Mid-Cenomanian Event I; the Cenomanian/Turonian Boundary Event; the Bridgewick, Hitch Wood and Navigation events of Late Turonian age; and the Santonian/Campanian Boundary Event. Isotope events are isochronous within a framework provided by macrofossil datum levels and bentonite horizons. An age-calibrated composite δ 13 C reference curve and an isotope event stratigraphy are constructed using data from the English Chalk. The isotope stratigraphy is applied to successions in Germany, France, Spain and Italy. Correlation with pelagic sections at Gubbio, central Italy, demonstrates general agreement between biostratigraphic and chemostratigraphic criteria in the Cenomanian-Turonian stages, confirming established relationships between Tethyan planktonic foraminiferal and Boreal macrofossil biozonations. Correlation of the Coniacian-Santonian stages is less clear cut: magnetostratigraphic evidence for placing the base of Chron 33r near the base of the Upper Santonian is in good agreement with the carbon-isotope correlation, but generates significant anomalies regarding the placement of the Santonian and Campanian stage boundaries with respect to Tethyan planktonic foraminiferal and nannofossil zones. Isotope stratigraphy offers a more reliable criterion for detailed correlation of Cenomanian-Santonian strata than biostratigraphy. With the addition of Campanian δ 13 C data from one of the English sections, a composite Cenomanian-Campanian age-calibrated reference curve is presented that can be utilized in future chemostratigraphic studies.The Cenomanian-Campanian carbon-isotope curve is remarkably similar in shape to supposedly eustatic sea-level curves: increasing δ 13 C values accompanying sea-level rise associated with transgression, and falling δ 13 C values characterizing sea-level fall and regression. The correlation between carbon isotopes and sea-level is explained by variations in epicontinental sea area affecting organic-matter burial fluxes: increasing shallow sea-floor area and increased accommodation space accompanying sea-level rise allowed more efficient burial of marine organic matter, with the preferential removal of 12 C from the marine carbon reservoir. During sea-level fall, reduced seafloor area, marine erosion of previously deposited sediments, and exposure of basin margins led to reduced organiccarbon burial fluxes and oxidation of previously deposited organic matter, causing falling δ 13 C values. Additionally, drowning of carbonate platforms during...

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Section: A5 Mid-cenomanian Event Imentioning

confidence: 99%

Section: B East Kent (Cenomanian-campanian)mentioning

confidence: 99%

Section: C Culver Cliff Isle Of Wight (Cenomanian-campanian)mentioning

confidence: 99%

Section: D Speeton North Yorkshire (Cenomanian)mentioning

confidence: 99%

Section: A5 Mid-cenomanian Event Imentioning

confidence: 99%

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Secular variation in Late Cretaceous carbon isotopes: a new δ¹³C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

et al. 2006

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Sedimentary Mercury Enrichments as a Marker for Submarine Large Igneous Province Volcanism? Evidence From the Mid‐Cenomanian Event and Oceanic Anoxic Event 2 (Late Cretaceous)

Scaife

Ruhl

Dickson

et al. 2017

Geochem Geophys Geosyst

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Oceanic Anoxic Event 2 (OAE 2), during the Cenomanian‐Turonian transition (∼94 Ma), was the largest perturbation of the global carbon cycle in the mid‐Cretaceous and can be recognized by a positive carbon‐isotope excursion in sedimentary strata. Although OAE 2 has been linked to large‐scale volcanism, several large igneous provinces (LIPs) were active at this time (e.g., Caribbean, High Arctic, Madagascan, Ontong‐Java) and little clear evidence links OAE 2 to a specific LIP. The Mid‐Cenomanian Event (MCE, ∼96 Ma), identified by a small, 1‰ positive carbon‐isotope excursion, is often referred to as a prelude to OAE 2. However, no underlying cause has yet been demonstrated and its relationship to OAE 2 is poorly constrained. Here we report sedimentary mercury (Hg) concentration data from four sites, three from the southern margin of the Western Interior Seaway and one from Demerara Rise, in the equatorial proto‐North Atlantic Ocean. We find that, in both areas, increases in mercury concentrations and Hg/TOC ratios coincide with the MCE and the OAE 2. However, the increases found in these sites are of a lower magnitude than those found in records of many other Mesozoic events, possibly characteristic of a marine rather than atmospheric dispersal of mercury for both events. Combined, the new mercury data presented here are consistent with an initial magmatic pulse at the time of the MCE, with a second, greater pulse at the onset of OAE 2, possibly related to the emplacement of LIPs in the Pacific Ocean and/or the High Arctic.

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Late Cretaceous to Early Palaeogene Pelagic Deposits: Deposition on Greenhouse Earth

Gale

2012

Geological History of Britain and Ireland

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Palaeoceanographic events in the Middle Cenomanian of Northwest Europe

Cited by 84 publications

References 0 publications

Secular variation in Late Cretaceous carbon isotopes: a new δ¹³C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

Secular variation in Late Cretaceous carbon isotopes: a new δ¹³C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

Sedimentary Mercury Enrichments as a Marker for Submarine Large Igneous Province Volcanism? Evidence From the Mid‐Cenomanian Event and Oceanic Anoxic Event 2 (Late Cretaceous)

Late Cretaceous to Early Palaeogene Pelagic Deposits: Deposition on Greenhouse Earth

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Palaeoceanographic events in the Middle Cenomanian of Northwest Europe

Cited by 84 publications

References 0 publications

Secular variation in Late Cretaceous carbon isotopes: a new δ13C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

Secular variation in Late Cretaceous carbon isotopes: a new δ13C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

Sedimentary Mercury Enrichments as a Marker for Submarine Large Igneous Province Volcanism? Evidence From the Mid‐Cenomanian Event and Oceanic Anoxic Event 2 (Late Cretaceous)

Late Cretaceous to Early Palaeogene Pelagic Deposits: Deposition on Greenhouse Earth

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Product

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Secular variation in Late Cretaceous carbon isotopes: a new δ¹³C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)

Secular variation in Late Cretaceous carbon isotopes: a new δ¹³C carbonate reference curve for the Cenomanian–Campanian (99.6–70.6 Ma)