A unique geochemical record at the Permian/Triassic boundary

@article{Holser1989AUG,
  title={A unique geochemical record at the Permian/Triassic boundary},
  author={William T. Holser and Hans Peter Sch{\"o}nlaub and M. Jr. Attrep and Klaus Boeckelmann and Peter Klein and Mordeckai Magaritz and Charles J. Orth and Alois Fenninger and Catherine Jenny and Martin Kr{\'a}lik and Hermann Johann Mauritsch and Edwin Pak and J.-M. Schramm and Karl Stattegger and Rupert Schm{\"o}ller},
  journal={Nature},
  year={1989},
  volume={337},
  pages={39-44}
}
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),
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 great
Permo-Triassic Boundary Superanoxia and Stratified Superocean: Records from Lost Deep Sea
  • Isozaki
  • Environmental Science, Geography
    Science
  • 1997
TLDR
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.
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 to
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 sedimentary
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