A unique geochemical record at the Permian/Triassic boundary

A unique geochemical record at the Permian/Triassic boundary

A 330-meter core drilled through the marine Permian/Triassic boundary in the Carnic Alps of Austria allows closely correlated studies of geochemistry, petrography and paleontology across the boundary. The isotope shifts and metal concentrations are extended, multiple and complex, and do not resemble...

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Veröffentlicht in:Nature (London) 1989-01, Vol.337 (6202), p.39-44
Hauptverfasser: HOLSER, W. T, SCHÖNLAUB, H.-P, MAURITSCH, H, PAK, E, SCHRAMM, J.-M, STATTAGGER, K, SCHMÖLLER, R, ATTREP, M. JR, BOECKELMANN, K, KLEIN, P, MAGARITZ, M, ORTH, C. J, FENNINGER, A, JENNY, C, KRALIK, M
Format: Artikel
Sprache:eng
Schlagworte:
Carbon isotopes
Core drilling
Cretaceous
Earth sciences
Earth, ocean, space
Exact sciences and technology
Geochemistry
Iridium
Metal concentrations
Paleontology
Permian
Petrography
Science
Soil and rock geochemistry
Stratigraphy
Triassic
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Beschreibung
Zusammenfassung:A 330-meter core drilled through the marine Permian/Triassic boundary in the Carnic Alps of Austria allows closely correlated studies of geochemistry, petrography and paleontology 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 chemical events (including an iridium anomaly) may have causes related to a major regression of the sea. Test results are presented.
ISSN:0028-0836
1476-4687
DOI:10.1038/337039a0