Aras Valley (northwest Iran): high-resolution stratigraphy of a continuous central Tethyan Permian–Triassic boundary section

IF 1.9 4区地球科学 Q1 PALEONTOLOGY

Fossil Record Pub Date : 2020-02-21 DOI:10.5194/fr-23-33-2020

Jana Gliwa, A. Ghaderi, L. Leda, Martin Schobben, S. Tomás, W. Foster, M. Forel, Nahideh Ghanizadeh Tabrizi, S. Grasby, U. Struck, A. Ashouri, D. Korn

引用次数: 13

Abstract

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.

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阿拉斯谷（伊朗西北部）：特提斯二叠纪-三叠纪边界中段连续剖面的高分辨率地层学

摘要研究人员从碳酸盐微相、生物地层学(特别是牙形刺、鹦鹉螺和菊石)、化学地层学(碳同位素)和环境背景等方面研究了伊朗西北部阿拉斯山谷的二叠纪-三叠纪边界剖面。通过资料对比，建立了以牙形刺(含五家坪期4个、长兴期10个、Griesbachian 3个)、氨石(含长兴期9个)和碳同位素为基础的高分辨率地层学;为重建研究地区二叠纪末灭绝事件前后的环境变化奠定了基础。在ArasValley部分，没有证据表明缺氧条件的发展与二叠纪末的大灭绝有关。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fossil Record PALEONTOLOGY-

CiteScore

3.60

自引率

7.10%

发文量

审稿时长

14 weeks

期刊介绍： Fossil Record (FR) is the palaeontological journal of the Museum für Naturkunde Berlin. This journal was founded in 1998 under the name Mitteilungen aus dem Museum für Naturkunde Berlin, Geowissenschaftliche Reihe and appears with two issues each year. Fossil Record publishes original papers in all areas of palaeontology including the taxonomy and systematics of fossil organisms, biostratigraphy, palaeoecology, and evolution. All taxonomic groups are treated, including invertebrates, microfossils, plants, and vertebrates.