Press-pulse: a general theory of mass extinction?

  title={Press-pulse: a general theory of mass extinction?},
  author={Nan Crystal Arens and Ian D. West},
Abstract Previous discussions of mass extinction mechanisms generally focused on circumstances unique to each event. However, some have proposed that extensive volcanism combined with bolide impact may offer a general mechanism of mass extinction. To test this hypothesis we compared generic extinction percentages for 73 stages or substages of the Mesozoic and Cenozoic. We found that the highest frequency of intervals with elevated extinction occurred when continental flood basalt volcanism and… 

The Alvarez Impact Theory of Mass Extinction; Limits to its Applicability and the “Great Expectations Syndrome”

  • G. Racki
  • Environmental Science, Geography
  • 2012
For the past three decades, the Alvarez impact theory of mass extinction, causally related to catastrophic meteorite impacts, has been recurrently applied to multiple extinction boundaries. However,

Limits to biodiversity cycles from a unified model of mass-extinction events

  • G. Feulner
  • Environmental Science, Geography
    International Journal of Astrobiology
  • 2011
It is shown that if there is a periodic extinction signal at all, it is much more likely to result from a combination of a comparatively weak periodic cause and various random factors.

The sixth mass extinction: Anthropocene and the human impact on biodiversity

  • T. Pievani
  • Environmental Science
    Rendiconti Lincei
  • 2013
Mass extinctions are a major pattern in macroevolution. Because of their frequency, quickness and global effects, they shaped the global biodiversity several times during the geological ages. As an

Past, present, and future mass extinctions

A preliminary test of the press-pulse extinction hypothesis: Palynological indicators of vegetation change preceding the Cretaceous-Paleogene boundary, McCone County, Montana, USA

Many workers consider the Cretaceous-Paleogene extinction the archetypal catastrophic pulse event caused solely by the Chicxulub bolide impact. However, based on a global scale analysis of marine

Abiotic causes of the great mass extinction of marine biota at the Triassic-Jurassic boundary

In the interval of the Triassic-Jurassic boundary up to 80% of marine species became extinct. The main hypotheses on the causes of this mass extinction are reviewed. The extinction was triggered by a

Continental flood basalts drive Phanerozoic extinctions.

Refinements of the geological timescale driven by the increasing precision and accuracy of radiometric dating have revealed an apparent correlation between large igneous provinces (LIPs) and

Comparison of the ages of large-body impacts, flood-basalt eruptions, ocean-anoxic events and extinctions over the last 260 million years: a statistical study

Many studies have linked mass extinction events with the catastrophic effects of large-body impacts and flood-basalt eruptions, sometimes as competing explanations. We find that the ages of at least

Time Scales of Critical Events Around the Cretaceous-Paleogene Boundary

Radiometric dating establishes the mass extinction that killed the dinosaurs as synchronous with a large asteroid impact between the Cretaceous-Paleogene boundary and associated mass extinctions with the Chicxulub bolide impact to within 32,000 years.



Causes of mass extinctions

Both bolide impacts and  ood basalts have been suggested as the cause of major perturbations in the history of the biosphere, and the external (cosmic) and internal (Earth-bound) factors of mass

Biotic effects of impacts and volcanism

  • G. Keller
  • Environmental Science, Geography
  • 2003

Large igneous provinces and mass extinctions

Identifying Phanerozoic extinction controls: statistical considerations and preliminary results

  • N. Macleod
  • Environmental Science, Geography
    Geological Society, London, Special Publications
  • 2004
Abstract Two prominent patterns have been recognized in Phanerozoic extinction data: (1) a quasi-periodic distribution of extinction-intensity peaks, and (2) a linear, declining background extinction

Mass extinctions: Persistent problems and new directions

Difficulties in resolving the fine details of taxon ranges and abundances immediately prior to and after an extinction boundary and the scarcity of simple, unitary cause-and-effect relations in complex biological systems underlie these long-standing disagreements.

Lessons from the past: Biotic recoveries from mass extinctions

  • D. Erwin
  • Geography, Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2001
Empirical studies reveal a more complex dynamic, including positive feedback and an exponential growth phase during recoveries, which is far from a model of refilling ecospace, which must be rebuilt during recovery.

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

Asteroid/comet impact clusters, flood basalts and mass extinctions: Significance of isotopic age overlaps