Large-scale magmatic pulses drive plant ecosystem dynamics
Large-scale magmatic pulses drive plant ecosystem dynamics
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大规模岩浆脉冲驱动植物生态系统动态
DOI：
10.1144/jgs2012-012
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发表时间：
2012
影响因子：
2.7
通讯作者：
John Millett
中科院分区：
文献类型：
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作者：
D. Jolley;S. Passey;M. Hole;John Millett
法罗群岛玄武岩群的古近纪熔岩场总厚度为6.6公里，是在北大西洋裂谷作用的初始阶段喷发的。薄的熔岩间沉积岩产生的孢粉植物群的组成和多样性随着熔岩间时期的持续时间而变化。植物生态演替的长期趋势发生在记录中，每个反映了最初的快速和随后放缓的喷发克里思。来自玄武岩熔岩流的TiO2和MgO图显示出相应的分馏趋势。这些链接熔柱过程植被生态系统动力学通过控制喷发克里思，热支持和基板干扰。补充材料：更多数据请访问www.geolsoc.org.uk/SUP18538。
The 6.6 km gross thickness of the Palaeogene lava field of the Faroe Islands Basalt Group was erupted in the initial phases of North Atlantic rifting. Thin interlava sedimentary rocks yield palynofloras that vary in composition and diversity with the duration of the interlava period. Long-term trends in plant ecological succession occur within the record, each reflecting initially rapid and subsequently slowing eruption tempo. TiO2 and MgO plots derived from the basalt lava flows show corresponding fractionation trends. These link melt column processes to vegetation ecosystem dynamics via controls on eruption tempo, thermal support and substrate disturbance. Supplementary material: Further data are available at www.geolsoc.org.uk/SUP18538.