期刊
FOSSIL RECORD
卷 23, 期 1, 页码 33-69出版社
COPERNICUS GESELLSCHAFT MBH
DOI: 10.5194/fr-23-33-2020
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资金
- Deutsche Forschungsgemeinschaft (DFG) [Ko1829/12-1, Ko1829/18-1]
- Deutsche Forschungsgemeinschaft (DFG, TERSANE research group) [FOR 2332]
- Ferdowsi University of Mashhad, Iran
The Permian-Triassic boundary section in the Aras Valley in NW Iran is investigated with respect to carbonate microfacies, biostratigraphy (particularly conodonts, nautiloids, and ammonoids), chemostratigraphy (carbon isotopes), and environmental setting. Correlation of the data allows the establishment of a high-resolution stratigraphy based on conodonts (with four Wuchiapingian, 10 Changhsingian, and three Griesbachian zones), ammonoids (with nine Changhsingian zones), and carbon isotopes; it forms the base for the reconstruction of the environmental changes before and after the end-Permian extinction event at the studied locality. In the Aras Valley section, there is no evidence for the development of anoxic conditions, associated with the end-Permian mass extinction.
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