Examining the volcanism-extinction link: an end-Guadalupian case study

检查火山活动与灭绝之间的联系：瓜达卢普末期案例研究

• 批准号: NE/D011094/1
• 负责人: Paul Wignall
• 金额: $ 5.02万
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=NE%2FD011094%2F1
• 关键词: Examining; volcanism; extinction; link; end

Is volcanism capable of causing species to go extinct? We don't know the answer to this question but evidence from rocks provides some intriguing clues. Thus, it has been recognised that all the extinction events of the past 300 million years coincide with major volcanic eruptions. These eruptions consisted of huge flows of basalt, involving 100s or 1000s of cubic kilometres of lava, that quietly oozed from the ground, plus some much more violent eruptions that scattered volcanic ash over great distances. Working out which of these styles of eruption are most closely associated, in time, with the extinctions has proved very difficult because the fossil evidence is usually found far away from where the volcanism occurred. This project will address this problem by studying a unique example of the volcanism-extinction link from 260 million years ago when lavas and ashes were repeatedly erupted into shallow seas in present-day China. The limestones that formed in these seas contain abundant fossils and evidence of a catastrophic extinction. By studying these Chinese rocks it will be possible, for the first time, to study directly both the volcanism and extinction story in the same place. The work will be supplemented with studies of carbon and sulphur isotopes from the limestones which will allow the scientists to determine changes in the state of the oceans during this interval.

火山主义是否能够导致物种灭绝？我们不知道这个问题的答案，但是岩石的证据提供了一些有趣的线索。因此，人们已经认识到，过去3亿年的所有灭绝事件都与主要的火山喷发相吻合。这些爆发包括巨大的玄武岩流，涉及100或1000立方公里的熔岩，从地面上悄悄地渗出，再加上一些更剧烈的爆发，这些爆发使火山灰在远处散布着灰烬。在及时发现这些喷发方式中的哪种风格与灭绝最紧密相关，这是非常困难的，因为通常发现化石证据远离发生火山的地方。该项目将通过研究2.6亿年前的火山膨胀联系的独特例子来解决这个问题，当今中国一再爆发到浅海。在这些海洋中形成的石灰石含有丰富的化石和灾难性灭绝的证据。通过研究这些中国岩石，首次有可能直接在同一地方研究火山和灭绝故事。这项工作将补充来自石灰岩的碳和硫同位素的研究，这将使科学家在此间隔内确定海洋状态的变化。

项目成果

Anatomically Preserved Pteridosperm Stems and Rachises from Permian Floras of China

• DOI: 10.1086/599076
• 发表时间: 2009-07
• 期刊: International Journal of Plant Sciences
• 影响因子: 2.3
• 作者: L. Seyfullah;J. Hilton;Shijun Wang;J. Galtier

Callistophytalean pteridosperms from Permian aged floras of China

• DOI: 10.1111/j.1475-4983.2010.01025.x
• 发表时间: 2011-03
• 期刊: Palaeontology
• 影响因子: 2.6
• 作者: L. Seyfullah;J. Hilton

Radiation and extinction patterns in Permian floras from North China as indicators for environmental and climate change

• DOI: 10.1144/0016-76492010-042
• 发表时间: 2011-02
• 期刊: Journal of the Geological Society
• 影响因子: 2.7
• 作者: L. Stevens;J. Hilton;D. Bond;I. Glasspool;P. Jardine

Resolving the systematic and phylogenetic position of isolated ovules: a case study on a new genus from the Permian of China MURICOSPERMA GUIZHOUENSIS GEN. & SP. NOV.

解析离体胚珠的系统发育和系统发育位置：以中国二叠纪MURICOSPERMA GUIZHOUENSIS GEN.一新属为例。

• DOI: 10.1111/j.1095-8339.2010.01069.x
• 发表时间: 2010
• 期刊: Botanical Journal of the Linnean Society
• 影响因子: 2.4
• 作者: SEYFULLAH L