The Permian-Triassic boundary and the Early Triassic in Transcaucasian and Central Iranian pelagic sections

二叠纪-三叠纪边界以及外高加索和伊朗中部远洋部分的早三叠世

• 批准号: 161034056
• 负责人: Privatdozent Dr. Dieter Korn
• 金额: --
• 依托单位: Museum für Naturkunde - Leibniz-Institut für Evolutions- und Biodiversitätsforschung (MfN)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2010
• 资助国家: 德国
• 起止时间: 2009-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/161034056?language=en
• 关键词: Permian; Triassic; boundary; Early; Transcaucasian

The exposures of Permian-Triassic (P-Tr) boundary beds in North-western (vicinity of Julfa) and Central Iran (vicinity of Abadeh) belong to the classic outcrops in which pelagic sediments can be studied with respect to the most severe mass extinction event in Earth History. Both regions show continuous successions of Permian and Triassic pelagic limestone, only interrupted by the boundary clay with the extinction horizon at the base. The simultaneous investigation of the fossil content (particularly of cephalopods and conodonts) as well as geochemistry (delta13Ccarb, delta13Corg, delta18O, and delta15N) and carbonate microfacies shows that these sections bear the potential for a deep insight in the kill mechanisms at the turn from the Palaeozoic into the Mesozoic. The discovery of hitherto undescribed, very fossiliferous P-Tr sections in the Baghuk Mountains (Central Iran) allow a detailed correlation with the sections of Julfa and complement the results gained in this area.

西北（Julfa附近）和伊朗中部（Abadeh附近）的二叠纪-三叠纪（P-Tr）边界层的暴露属于地球历史上最严重的大灭绝事件中可以研究上层沉积物的经典露头。两个地区均为连续的二叠纪和三叠纪远洋灰岩序列，仅被底部有灭绝层的边界粘土所中断。同时对化石含量（特别是头足类和牙形刺类）、地球化学（δ 13ccarb、δ 13corg、δ 18o和δ 15n）和碳酸盐微相的研究表明，这些剖面具有深入了解古生代与中生代交叠时的杀伤机制的潜力。在Baghuk山脉（伊朗中部）发现的迄今未被描述的非常化石化的P-Tr剖面可以与Julfa剖面进行详细的对比，并补充了在该地区获得的结果。

项目成果

Discerning primary versus diagenetic signals in carbonate carbon and oxygen isotope records: An example from the Permian–Triassic boundary of Iran

• DOI: 10.1016/j.chemgeo.2015.12.013
• 发表时间: 2016-03
• 期刊: Chemical Geology
• 影响因子: 3.9
• 作者: Martin Schobben;C. Ullmann;L. Leda;D. Korn;U. Struck;W. Reimold;A. Ghaderi;T. Algeo;C. Korte-C.-Kort

EXTINCTION SPACE—A METHOD FOR THE QUANTIFICATION AND CLASSIFICATION OF CHANGES IN MORPHOSPACE ACROSS EXTINCTION BOUNDARIES

灭绝空间对跨越灭绝边界的形态空间变化进行量化和分类的方法

• DOI: 10.1111/evo.12162
• 发表时间: 2013
• 期刊: Evolution
• 影响因子: 3.3
• 作者: Hopkins;Walton
• 通讯作者: Walton

Volatile earliest Triassic sulfur cycle : A consequence of persistent low seawater sulfate concentrations and a high sulfur cycle turnover rate?

挥发性最早的三叠纪硫循环：持续低海水硫酸盐浓度和高硫循环周转率的结果？

• DOI: 10.1016/j.palaeo.2017.02.025
• 发表时间: 2017
• 期刊: Palaeogeography, Palaeoclimatology, Palaeoecology
• 作者: Schobben;Stebbins;Strauss;Struck
• 通讯作者: Struck

Lithostratigraphy and carbonate microfacies across the Permian–Triassic boundary near Julfa (NW Iran) and in the Baghuk Mountains (Central Iran)

• DOI: 10.1007/s10347-013-0366-0
• 发表时间: 2014-01
• 期刊: Facies
• 影响因子: 1.8
• 作者: L. Leda;D. Korn;A. Ghaderi;V. Hairapetian;U. Struck;W. Reimold

Palaeotethys seawater temperature rise and an intensified hydrological cycle following the end-Permian mass extinction

• DOI: 10.1016/j.gr.2013.07.019
• 发表时间: 2014-09
• 期刊: Gondwana Research
• 影响因子: 6.1
• 作者: Martin Schobben;M. Joachimski;D. Korn;L. Leda;C. Korte