Restoration of reef ecosystems following the Guadalupian–Lopingian boundary mass extinction: Evidence from the Laibin area, South China
Restoration of reef ecosystems following the Guadalupian–Lopingian boundary mass extinction: Evidence from the Laibin area, South China
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瓜达卢普阶-洛平阶边界生物大灭绝后珊瑚礁生态系统的恢复：来自华南来宾地区的证据
DOI：
10.1016/j.palaeo.2017.08.027
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发表时间：
2017-08
期刊：
影响因子：
--
通讯作者：
Junhua Huang
中科院分区：
文献类型：
--
作者：
Yuangeng Huang;Zhong-Qiang Chen;Laishi Zhao;George D. Stanley Jr;Jiaxin Yan;Yu Pei;Wanrong Yang;Junhua Huang
Guadalupian-Lopingian边界（GLB），也称为中晚二叠纪边界，大灭绝严重破坏了后生动物珊瑚礁生态系统，尽管一些研究认为GLB的生物和环境转换并不明显。与Capitanian大量发育的礁体相比，wuchapingian礁体表现出退化，在这些生物构造中几乎损失了89%的碳酸盐生产。本文报道了广西中部铁桥剖面五家坪期的一个典型海绵礁。铁桥礁可能是古特提斯地区东部唯一的五家坪期后生界礁。它提供了对GLB灭绝后生态系统恢复的见解。铁桥礁的主要建造者是海绵（Peronidella,Parauvanella,Sollasia， Tabulozoa和amblysiphonella），藻类（anthroacopoella,Archaeolithporella,Permocalculus,Gymnocodium）和管藻。该礁的年龄受larkina东方牙形刺带的约束，很好地限定为五家坪纪中晚期。碳酸盐碳同位素漂移经历了GLB附近的负峰值和吴家坪期早中期的多次扰动，在吴家坪期中晚期后生动物礁重建期间保持相对稳定。牙形石氧同位素表明，在capitian晚期海表温度极高，约为50 ~ 30℃，其间出现了与GLB灭绝相关的短暂降温事件和全球回归，随后在wuchappingian早期出现了海表温度高和海平面快速上升。铁桥礁的重新出现与五甲坪纪中后期海面开始降温和海平面下降相吻合。因此，综合牙形石生物地层和辐射年龄估算，全球范围内的珊瑚礁生态系统在吴家坪早期中期经历了长期的衰竭，在GLB灭绝后恢复了~ 2.5 Myr。
The Guadalupian–Lopingian boundary (GLB), also Middle–Late Permian boundary, mass extinction severely destroyed metazoan reef ecosystems, although some studies argued that both biotic and environmental turnover across the GLB are not so obvious. When compared with prolifically developed reefs in the Capitanian, the Wuchiapingian reef examples appear depauperate and almost 89% of the carbonate production in these bioconstructions was lost. Here, we report a typical sponge reef from the Wuchiapingian stage in the Tieqiao section, central Guangxi Province, South China. The Tieqiao reef might represent the only example of a Wuchiapingian metazoan reef in the eastern Palaeo-Tethys region. It provides insight into ecosystem restoration following the GLB extinction. Major constructors of the Tieqiao reef are sponges (Peronidella,Parauvanella,Sollasia, Tabulozoa, andAmblysiphonella), algae (Anthracoporella,Archaeolithporella,Permocalculus,Gymnocodium) andTubiphytes. This reef is well constrained as middle–late Wuchiapingian in age by theClarkina orientalisconodont zone. Carbonate carbon isotope excursions experienced negative spikes near the GLB and multiple perturbations in the early–middle Wuchiapingian, and remained relatively stable during re-establishment of metazoan reefs in middle–late Wuchiapingian. Conodont oxygen isotopes showed that the sea surface temperature (SST) was extremely high, > 30 °C during late Capitanian time, punctuated by a short cooling event and global regression associated with the GLB extinction, and followed by high SST and rapid rise in sea level in the early Wuchiapingian. The reemergence of the Tieqiao reef coincided with the initial cooling in surface oceans and sea-level fall during the middle–late Wuchiapingian. Accordingly, reef ecosystems experienced a long-term depletion worldwide in early–middle Wuchiapingian time and then recovered ~ 2.5 Myr after the GLB extinction based on estimate in integration of both conodont biostratigraphy and radiometric ages.
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影响因子：
2.9
作者：
Denys B. Smith
通讯作者：
Denys B. Smith
中国中二叠世的火山活动、生物大灭绝和碳同位素波动
影响因子：
56.9
作者：
Sun, Yadong;Lai, Xulong;Wignall, Paul B.;Ali, Jason R.;Jiang, Haishui;Vedrine, Stephanie;Bottrell, Simon H.;Newton, Robert J.;Izon, Gareth;Cope, Helen;Bond, David P. G.;Widdowson, Mike
通讯作者：
Widdowson, Mike
影响因子：
1
作者：
U. Hara;M. Słowakiewicz;P. Raczyński
通讯作者：
U. Hara;M. Słowakiewicz;P. Raczyński
影响因子：
1.5
作者：
Xiangdong Wang;T. Sugiyama
通讯作者：
Xiangdong Wang;T. Sugiyama
DOI：
10.3402/tellusb.v47i1-2.16047
发表时间：
1995-02
期刊：
Tellus B
影响因子：
--
作者：
P. A. Suchet;J. Probst
通讯作者：
P. A. Suchet;J. Probst