A unique geochemical record at the Permian/Triassic boundary

  title={A unique geochemical record at the Permian/Triassic boundary},
  author={W. T. Holser and H. Sch{\"o}nlaub and M. Attrep and K. Boeckelmann and P. Klein and M. Magaritz and C. Orth and A. Fenninger and C. Jenny and M. Kr{\'a}lik and H. Mauritsch and E. Pak and J.-M. Schramm and K. Stattegger and R. Schm{\"o}ller},
A 330-metre core drilled through the marine Permian/Triassic boundary in the Carnic Alps of Austria allows closely correlated studies of geochemistry, petrography and palaeontology across the boundary. The isotope shifts and metal concentrations are extended, multiple and complex, and do not resemble those seen at the Cretaceous/Tertiary boundary. Both the carbon isotope shifts and the chemical events (including an indium anomaly) may have causes related to a major regression of the sea. 
Carbon and Sulfur Isotope Stratigraphy of the Permian and Adjacent Intervals
The Permian was a most unusual period in geologic history. It was marked by repeated largescale climate changes, major extinction events, abrupt and extensive volcanic activity (the Siberian traps),Expand
Geochemical changes at the Permian–Triassic transition in Southern Alps and adjacent area: a review
Compilation of the recent literature from the Southern Alps and adjacent area confirms the geochemical variations of unusual amplitudes during the Permian-Triassic boundary interval (PTBI). A greatExpand
Permo-Triassic Boundary Superanoxia and Stratified Superocean: Records from Lost Deep Sea
  • Isozaki
  • Geology, Medicine
  • Science
  • 1997
The symmetry in lithostratigraphy and redox condition of the boundary sections suggest that the superocean Panthalassa became totally stratified for nearly 20 million years across the Permo-Triassic boundary. Expand
The Permian-Triassic of the Gartnerkofel-1 Core (Carnic Alps, Austria): Sulfur Isotopes
Sulfur isotope ratios in pyrite have high negative values characteristic of each level, confirming a syngenetic origin of the sulfide. Two samples of gypsum have high negative values corresponding toExpand
Implications of isotopic and other geochemical data from a Cretaceous-Tertiary transition in southern Africa
Abstract Isotopic, palaeontological and geochemical details of a drill-core section at Richard's Bay, South Africa, are reported. Foraminiferal evidence shows that the section encompasses aExpand
Geochemistry of the end-Permian extinction event in Austria and Italy: No evidence for an extraterrestrial component
The end-Permian mass extinction (251 Ma) was the largest in Earth's history, and the great extent of biospheric perturbation is recorded as dramatic shifts in carbon isotope ratios of sedimentaryExpand
Platinum element group variations at the Permo–Triassic boundary in Kashmir and British Columbia and their significance
Abstract The end Permian marks the greatest extinction in the geological record, but there is no consensus on whether it was caused by terrestrial or extraterrestrial factors. Platinum group elementsExpand
Geochemical consequences of the Permian–Triassic mass extinction in a non‐marine succession, Sydney Basin, Australia
Abstract The identification of the Permian–Triassic boundary (PTB) and Permian–Triassic mass extinction event (PTME) in eastern Australia is based primarily on palynological and plant fossil evidenceExpand
Carbon isotope study of the Permian-Triassic boundary sequences in China
Abstract Systematic investigations for carbon isotopes on five stratigraphic sections of the marine carbonate strata from the Upper Permian to the Lower Triassic in the southern China have beenExpand
Effects of the Permian–Triassic boundary on reservoir characteristics of the South Pars gas field, Persian Gulf
The Permian–Triassic boundary (PTB) is a world-wide event characterized by the most extensive mass extinction in the history of life. In the Persian Gulf, the rock record of this time interval hostExpand


An extraterrestrial event at the Cretaceous–Tertiary boundary
Closely spaced samples from an uninterrupted calcareous pelagic sequence across the Cretaceous–Tertiary boundary reveal that the extinction of planktonic Foraminifera and nannofossils was abruptExpand
The carbon-isotope shift at the Permian/Triassic boundary in the southern Alps is gradual
Carbon isotope ratios in marine carbonate rocks have been shown to shift at some of the time boundaries associated with extinction events; for example, Cretaceous/Tertiary1 and Ordovician/ Silurian2.Expand
Siderophile-enriched sediments from the Cretaceous–Tertiary boundary
Siderophilic element concentrations are high in sediments from the Cretaceous–Tertiary boundary. An extraterrestrial source is indicated. Concentrations are too high to be understood in terms of theExpand
Carbon-isotope events across the Precambrian/Cambrian boundary on the Siberian Platform
Variations of marine isotopes with time have been observed through the Phanerozoic1,2, in association with some period boundaries: Pleistocene/Holocene3, Cretaceous/Tertiary4, Permo-Triassic5,6 andExpand
Conodont Survival and Low Iridium Abundances Across the Permian-Triassic Boundary in South China
A low concentration of iridium in the boundary clay (0.002 part per billion �20 percent) and in samples immediately below and above, do not support the proposal of an extraterrestrial impact event at this boundary in China. Expand
Terminal Ordovician extinction: Geochemical analysis of the Ordovician/Silurian boundary, Anticosti Island, Quebec
Elemental abundances (including Ir), carbon and oxygen ratios in carbonates, mineral content, and thin sections have been measured in samples collected across the conodont-defined Ordovician/SilurianExpand
The Cretaceous/Tertiary boundary carbon and oxygen isotope stratigraphy, diagenesis, and paleoceanography at Zumaya, Spain
Carbon and oxygen isotope analysis of 240 m of Upper Cretaceous and Lower Tertiary limestones and marlstones from Zumaya, Spain, has revealed three distinct, negative carbon isotope excursions of upExpand
Seawater Strontium Isotopes, Acid Rain, and the Cretaceous-Tertiary Boundary
A large bolide impact at the end of the Cretaceous would have produced significant amounts of nitrogen oxides by shock heating of the atmosphere. The resulting acid precipitation would have increasedExpand
Chronology of Fluctuating Sea Levels Since the Triassic
An effort has been made to develop a realistic and accurate time scale and widely applicablechronostratigraphy and to integrate depositional sequences documented in public domain outcrop sections from various basins with this chronostratigraphic framework. Expand
Significance of a δ13C anomaly near the Devonian/Carboniferous boundary at the Muhua section, South China
The Muhua section of Guizhou Province, South China is one of three candidates for the Devonian/Carboniferous international boundary stratotype1. Although palaeontological and stratigraphical dataExpand