Dinoflagellate-based sea surface temperature reconstructions across the Cretaceous–Tertiary boundary

Brinkhuis, Henk; Bujak, J P; Smit, Jan; Versteegh, Gerard J.M.; Visscher, Henk

doi:10.1016/s0031-0182(98)00004-2

Cited by 168 publications

(153 citation statements)

References 45 publications

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“…The duration of this cold spell is in agreement with coupled ocean-atmosphere model results, suggesting that impact-induced dust and aerosol loading will result in lower SSTs for several decades, even after most of the dust has been removed from the atmosphere (40). Our results of short-term cooling following the K-Pg asteroid impact are supported by a migration of cool, boreal dinoflagellate species into the subtropic Tethyan realm directly across the K-Pg boundary interval (16,41) and the ingression of boreal benthic foraminifera into the deeper parts of the Tethys Ocean, interpreted to reflect millennial timescale changes in ocean circulation following the impact, attributed to a hypothesized short-term cooling of 1-10 y (16).…”

Section: Chicxulub Cratermentioning

confidence: 56%

Rapid short-term cooling following the Chicxulub impact at the Cretaceous–Paleogene boundary

Vellekoop

Sluijs

Smit³

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

157

155

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Significance Here, for the first time (to our knowledge), we are able to demonstrate unambiguously that the impact at the Cretaceous–Paleogene boundary (K–Pg, ∼66 Mya) was followed by a so-called “impact winter.” This impact winter was the result of the injection of large amounts of dust and aerosols into the stratosphere and significantly reduced incoming solar radiation for decades. Therefore, this phase will have been a key contributory element in the extinctions of many biological clades, including the dinosaurs. The K–Pg boundary impact presents a unique event in Earth history because it caused global change at an unparalleled rate. This detailed portrayal of the environmental consequences of the K–Pg impact and aftermath aids in our understanding of truly rapid climate change.

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Section: Chicxulub Cratermentioning

confidence: 56%

Rapid short-term cooling following the Chicxulub impact at the Cretaceous–Paleogene boundary

Vellekoop

Sluijs

Smit³

et al. 2014

Proc. Natl. Acad. Sci. U.S.A.

157

155

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“…An episode of extreme cooling is indicated by the differential survival patterns in the Marlborough sections, with thermophilic species of planktic foraminifera dying out and many cosmopolitan planktic foraminiferal species and virtually all radiolarian species persisting into the Paleocene (Hollis 1996(Hollis , 1997Strong 2000). Proliferation of planktic foraminif era for c. 100 000 yr after the K/T boundary may represent transitory warming due to an impact-related increase in greenhouse gases (O'Keefe & Ahrens 1989;Pope et al 1997;Brinkhuis et al 1998).…”

Section: Discussionmentioning

confidence: 99%

“…An extremely high pCO2 value of >2300 ppmv for the earliest Paleocene (Beerling et al 2002) is considered unreliable as it is based on a fern species with uncalibrated stomatal indices (Wilf et al 2003). Although this value is unreliable, other evidence indicates that significant transitory warming occurred in the earliest Paleocene (Stott & Kennett 1990;Brinkhuis et al 1998;Wilf et al 2003), which might be related to post-impact greenhouse conditions (O'Keefe & Ahrens 1989;Pope et al 1997). Greenhouse-warming may explain the short-lived (c. 100 000 yr) proliferation of planktic foraminifera in the earliest Paleocene in New Zealand.…”

Section: Relationship Between Trends In Biosiliceous Productivity Andmentioning

confidence: 99%

The Cretaceous/Tertiary boundary event in New Zealand: Profiling mass extinction

Hollis¹

2003

New Zealand Journal of Geology and Geophysics

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Of over 20 known Cretaceous/Tertiary (K/T) boundary sections in the New Zealand region, 6 in the northern South Island were selected for detailed biostratigraphic and paleoenvironmental study because of their apparent stratigraphic completeness and the range of depositional environments represented. These sections represent the only known southern high-latitude (55-60°S) transect of the K/T boundary transition from continental slope to terrestrial mire.The K/T boundary is marked by deposition of an impact fallout layer in four of these sections, and a disconformity representing a hiatus of < 100 000 yr in the remaining two sections (Mead and Branch Streams). In the terrestrial Moody Creek Mine and shallow marine mid-Waipara sections, rapid and widespread destruction of forests is shown by abrupt replacement of mixed forest pollen and spore assemblages by assemblages dominated by few species of ground ferns. Foraminiferal and radiolarian biostratigraphy indicates that within 100 000 yr these ferns were replaced by a cool-temperate conifer-dominated assemblage that persisted until c. 63.5 Ma. In the marine sections, an abrupt decrease in carbonate content reflects a major decline in carbonate production associated with mass extinction of calcareous plankton, although several smaller species of planktic foraminifera persist for c. 100 000 yr into the Paleocene.In four sections in Marlborough (Flaxbourne, Woodside, Mead, and Branch), which represent a transect across a coastal upwelling zone, paleoproductivity proxies (excess SiO 2 , excess Ba, Ba/Al, δ 13 C) indicate that the decline in calcareous plankton was partly offset by sustained siliceous plankton productivity. Extinctions of thermophilic foraminifera, survival of cosmopolitan foraminifera, and expansion of diatoms and spumellarian radiolarians indicate that pronounced cooling occurred across the K/T boundary. A subsequent decline in planktic foraminifera and in carbonate content, associated with a progressive increase in siliceous plankton productivity, indicates that further cooling resulted in dominantly biosiliceous sediment being deposited in the core of the Marlborough upwelling zone from c. 64.9 to 63.5 Ma. The onset of this biosiliceous event at c. 64. Ma and a later major increase in biogenic silica in the deepwater sections (Flaxbourne, Woodside) at c. 64.6 Ma are correlated with sea-level falls in the shelf section (Branch) and are also linked to eustatic events recorded in Europe and North and Central America.These early Paleocene regressive events within a cool climatic regime are the probable cause of incomplete K/T boundary records in most of New Zealand. It remains uncertain if they are directly related to the K/T bolide impact, the short-term effects of which may have disrupted the global climate system for millions of years, or are related to other factors such as tectonism or fluctuating CO 2 emissions from Deccan volcanism.

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“…Distribution of dinoflagellate species in both hemispheres are interpreted as a result of bipolar migration of this species in response to the global warming during the early Danian (Smit and Brinkhuis, 1996;Nøhr Hansen and Dam, 1997;Brinkhuis et al, 1998;Willumsen, 2006;Slimani et al, 2010).…”

Section: Resultsmentioning

confidence: 99%

Similarities of the K/Pc dinoflagellate cyst associations between South Atlantic and Indian proto-oceans

Menezes¹,

Garcia²,

Premaor³

et al. 2016

Geol. USP. Sér. Cient.

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In this contribution we present the composition of the Late Cretaceous / Paleocene dinoflagellate cyst assemblages found in the Pelotas Basin, southern Brazil in order to provide a first paleobiogeographical comparison between this location, India and other former Gondwana continents: South America (Argentina and Uruguay), Africa (Nigeria and Western Ghana), Antarctica, Australia, and New Zealand. A total of 13 taxa, some endemic and other cosmopolitan were identified. The paleoenvironment of the Gondwana former members basins, as previously presented and attested by the dinoflagellate cysts are marginal marine nearshore, varying from neritic to shallow neritic and lagoonal or coastal swamps, which permitted the deposition of sediments in anoxic marine conditions. The present analysis of similarity between K/Pc dinoflagellate cyst associations allowed the establishment of paleobiogeographic distribution.

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Dinoflagellate-based sea surface temperature reconstructions across the Cretaceous–Tertiary boundary

Cited by 168 publications

References 45 publications

Rapid short-term cooling following the Chicxulub impact at the Cretaceous–Paleogene boundary

Rapid short-term cooling following the Chicxulub impact at the Cretaceous–Paleogene boundary

The Cretaceous/Tertiary boundary event in New Zealand: Profiling mass extinction

Similarities of the K/Pc dinoflagellate cyst associations between South Atlantic and Indian proto-oceans

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