Rapid (10-yr) recovery of terrestrial productivity in a simulation study of the terminal Cretaceous impact event

  title={Rapid (10-yr) recovery of terrestrial productivity in a simulation study of the terminal Cretaceous impact event},
  author={Barry H. Lomax and David J. Beerling and Garland R. Upchurch and Bette L. Otto‐Bliesner},
  journal={Earth and Planetary Science Letters},

Evidence for the recovery of terrestrial ecosystems ahead of marine primary production following a biotic crisis at the Cretaceous–Tertiary boundary

The fossil record demonstrates that mass extinction across the Cretaceous–Tertiary (K–T) boundary is more severe in the marine than the terrestrial realm. We hypothesize that terrestrial ecosystems

End-Cretaceous marine mass extinction not caused by productivity collapse

A transient episode of surface ocean acidification may have been the main cause of extinction of calcifying plankton and ammonites, and recovery of productivity may have be as fast in the oceans as on land.

High-resolution organic carbon isotope record across the Cretaceous–Tertiary boundary in south-central Alberta: implications for the post-impact recovery rate of terrestrial ecosystems and use of δ13C as a boundary marker

A high-resolution study identified a δ 13 C excursion of -1.8‰ to -2.3‰ in terrestrial organic matter across the Cretaceous-Tertiary (K-T) boundary at two localities in the Scollard Formation of

Chicxulub and climate: radiative perturbations of impact-produced S-bearing gases.

Although the climate perturbation to the forcing appears to be relatively large, the geologic record shows no sign of a significant long-term climatic shift across the K/T boundary, which is indicative of a fast post-impact climatic recovery.

Global Effects of the Chicxulub Impact on Terrestrial Vegetation — Review of the Palynological Record from New Zealand Cretaceous/Tertiary Boundary

Analysis of pollen and spore assemblages from both terrestrial and near-shore marine sediments in New Zealand reveal an instant and dramatic mass-kill of the land plants in close association with the

Paleobotanical Evidence for Climatic Change across the Cretaceous-Tertiary Boundary, North America: Twenty Years after Wolfe and Upchurch

A b s t r a c t In 1981 orth et al. (orth et al. 1981) provided the first micropaleontological evidence for terrestrial mass-mortality at the Cretaceous-Tertiary (or K-T) boundary associated with the

The environmental disaster of Aznalcóllar (southern Spain) as an approach to the Cretaceous–Palaeogene mass extinction event

The dramatic consequences of the K-Pg boundary impact and the generalized long-time recovery interpreted after the event could have been overestimated due to the absence of a high-temporal resolution in the range of 10(2)-10(3) years.

The petrology and geochemistry of the impactite sequence and selected target rocks from the Yaxcopoil-1 borehole, Chicxulub Impact Structure, Yucatan Peninsula, Mexico

Geological and geophysical investigations of the Chicxulub meteorite impact structure have been ongoing since its scientific recognition in 1991 (Hildebrand et al. 1991). The structure is of

The Chicxulub impact and its environmental consequences

The extinction of the dinosaurs and around three-quarters of all living species was almost certainly caused by a large asteroid impact 66 million years ago. Seismic data acquired across the impact



Terrestrial ecosystem responses to global environmental change across the Cretaceous‐Tertiary boundary

Investigations of long‐term (10³–105 yr) environmental change across the Cretaceous‐Tertiary (K/T) boundary resulting from the impact of a large bolide indicate increases in temperature and

The influence of vegetation cover on soil organic matter preservation in Antarctica during the Mesozoic

A possible biological component of the explanation for the lack of substantial coal formation on Antarctica between the Late Jurassic and Late Cretaceous is hypothesised. Forcing a process‐based

Environmental Effects of an Impact-Generated Dust Cloud: Implications for the Cretaceous-Tertiary Extinctions

A model of the evolution and radiative effects of a debris cloud from a hypothesized impact event at the Cretaceous-Tertiary boundary suggests that the cloud could have reduced the amount of light at

Geochemical evidence for suppression of pelagic marine productivity at the Cretaceous/Tertiary boundary

The normal, biologically productive ocean is characterized by a gradient of the 13C/12C ratio from surface to deep waters. Here we present stable isotope data from planktonic and benthic

Vegetation-induced warming of high-latitude regions during the Late Cretaceous period

Modelling studies of pre-Quaternary (>2 million years ago) climate implicate atmospheric carbon dioxide concentrations1, land elevation2 and land–sea distribution3–5 as important factors influencing

Environmental perturbations caused by the impacts of asteroids and comets

We review the major impact‐associated mechanisms proposed to cause extinctions at the Cretaceous‐Tertiary geological boundary. We then discuss how the proposed extinction mechanisms may relate to the

Organic carbon fluxes and ecological recovery from the cretaceous-tertiary mass extinction

Under this hypothesis, marine production may have recovered shortly after the mass extinction, but the structure of the open-ocean ecosystem did not fully recover for more than 3 million years.

Cretaceous Extinctions: Evidence for Wildfires and Search for Meteoritic Material

Clay samples from three Cretaceous-Tertiary boundary sites contain a worldwide layer of soot, suggesting that soot production by large wildfires is about 10 times more efficient that has been assumed for a nuclear winter.

A meteorite from the Cretaceous/Tertiary boundary

Cretaceous/Tertiary boundary sediments are now widely recognized to contain the record of a large asteroid or comet impact event, probably at the site of the Chicxulub crater on the Yucatan