| Title | Aras Valley (northwest Iran): high-resolution stratigraphy of a continuous central Tethyan Permian-Triassic boundary section |
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| Author | Gliwa, J; Ghaderi, A; Leda, L; Schobben, M; Tomas, S; Foster, W J; Forel, M B; Tabrizi, N G; Grasby, S E ; Struck, U; Ashouri, A R; Korn, D |
| Source | Fossil Record vol. 23, 1, 2020 p. 33-69, https://doi.org/10.5194/fr-23-33-2020  Open Access |
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| Year | 2020 |
| Alt Series | Natural Resources Canada, Contribution Series 20200191 |
| Publisher | Copernicus Gesellschaft Mbh |
| Document | serial |
| Lang. | English |
| Media | paper; on-line; digital |
| File format | pdf |
| Area | Aras Valley; Iran (Islamic Republic of) |
| Lat/Long WENS | 45.4344 45.4347 39.0156 39.0153 |
| Subjects | environmental geology; Science and Technology; Nature and Environment; stratigraphy; stratigraphic analyses; biostratigraphy; carbonate; microfacies; conodonts; carbon isotopes; environmental studies;
Permian; Triassic |
| Illustrations | location maps; photographs; columnar sections; sections; tables |
| Released | 2020 02 21 |
| Abstract | 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. |
| GEOSCAN ID | 326603 |
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