Large Perturbations of the Carbon Cycle During Recovery from the End-Permian Extinction

  title={Large Perturbations of the Carbon Cycle During Recovery from the End-Permian Extinction},
  author={Jonathan L. Payne and Daniel J. Lehrmann and Jiayong Wei and Michael J. Orchard and Daniel P. Schrag and Andrew H. Knoll},
  pages={506 - 509}
High-resolution carbon isotope measurements of multiple stratigraphic sections in south China demonstrate that the pronounced carbon isotopic excursion at the Permian-Triassic boundary was not an isolated event but the first in a series of large fluctuations that continued throughout the Early Triassic before ending abruptly early in the Middle Triassic. The unusual behavior of the carbon cycle coincides with the delayed recovery from end-Permian extinction recorded by fossils, suggesting a… 

High resolution C-isotopic data from microbialites in the aftermath of the end-Permian mass extinction in South China

Globally, Late Permian to Early Triassic carbonate rocks record several pronounced positive and negative C-isotope excursions, indicating a dramatic reorganization of the global carbon cycle. These

Dynamics of the Largest Carbon Isotope Excursion During the Early Triassic Biotic Recovery

The dynamics of the carbon cycle across different timescales is crucial for understanding past and present global climate changes. Following the Permian–Triassic boundary mass extinction (PTBME), the

Summary of Early Triassic carbon isotope records

Timing of recovery from the end-Permian extinction: Geochronologic and biostratigraphic constraints from south China

Four volcanic-ash beds bracket the Early-Middle Triassic boundary, as defined by conodont biostratigraphy, in a stratigraphic section in south China. High-precision U-Pb dates of single zircons allow

Recurrent Early Triassic ocean anoxia

The Early Triassic record, from the Smithian stratotype, shows that the organic carbon isotope record from northwest Pangea closely corresponds to major fluctuations in the inorganic carbon records

Simulation of Carbon Isotope Excursion Events at the Permian-Triassic Boundary Based on GEOCARB

Abstract The biggest Phanerozoic mass extinctionoccurred at the Permian-Triassic boundary and resulted in the loss of about 95% or more of all marine species. For quite some time, many kinds of



Comparative Earth History and Late Permian Mass Extinction

The repeated association during the late Neoproterozoic Era of large carbon-isotopic excursions, continental glaciation, and stratigraphically anomalous carbonate precipitation provides a framework

U/Pb zircon geochronology and tempo of the end-permian mass extinction

Biostratigraphic controls from strata intercalated with ash beds below the boundary indicate that the Changhsingian pulse of the end-Permian extinction, corresponding to the disappearance of about 85 percent of marine species, lasted less than 1 million years.

An ecologic explanation for the Permo‐Triassic carbon and sulfur isotope shifts

The boundary between Late Permian and Early Triassic stratigraphic sequences is characterized by the onset of a marked shift in the isotopic composition of both marine carbonates and sulfates. The

Pattern of marine mass extinction near the Permian-Triassic boundary in South China.

A statistical analysis of the occurrences of 162 genera and 333 species confirms a sudden extinction event at 251.4 million years ago, coincident with a dramatic depletion of delta13C(carbonate) and an increase in microspherules.

Permian-Triassic extinction: Organic δ13C evidence from British Columbia, Canada

The Permian-Triassic (P-T) extinction is documented geochemically in a marine sequence deposited in a basinal setting at Williston Lake, northeastern British Columbia, by using elemental and isotopic

Examination of hypotheses for the Permo–Triassic boundary extinction by carbon cycle modeling

  • R. Berner
  • Environmental Science
    Proceedings of the National Academy of Sciences of the United States of America
  • 2002
Modeling indicates that measured short-term changes in δ13C at the boundary are best explained by methane release with mass mortality and volcanic degassing contributing in secondary roles, which results in excessively high levels of atmospheric CO2 if they occurred on time scales of more than about 1,000 years.

Dissociation of oceanic methane hydrate as a cause of the carbon isotope excursion at the end of the Paleocene

Isotopic records across the “Latest Paleocene Thermal Maximum“ (LPTM) indicate that bottom water temperature increased by more than 4°C during a brief time interval (<104 years) of the latest

δ13C depth profiles from paleosols across the Permian-Triassic boundary: Evidence for methane release

Stable carbon isotopic analyses of organic carbon (δ 13 C) in individual paleosol profiles from Permian–Triassic sequences of Antarctica reveal systematic isotopic variations with profile depth.