A unique geochemical record at the Permian/Triassic boundary
Abstract
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.
- Publication:
-
Nature
- Pub Date:
- January 1989
- DOI:
- 10.1038/337039a0
- Bibcode:
- 1989Natur.337...39H
- Keywords:
-
- Abundance;
- Geochemistry;
- Geochronology;
- Isotope Effect;
- Paleontology;
- Austria;
- Carbon Isotopes;
- Iridium;
- Oxygen Isotopes;
- Petrography;
- Geophysics