气候变化领域集成服务门户(CCPortal): Eruptive activity of the Santorini Volcano controlled by sea-level rise and fall

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DOI	10.1038/s41561-021-00783-4
	Eruptive activity of the Santorini Volcano controlled by sea-level rise and fall
	Satow C.; Gudmundsson A.; Gertisser R.; Ramsey C.B.; Bazargan M.; Pyle D.M.; Wulf S.; Miles A.J.; Hardiman M.
发表日期	2021
ISSN	17520894
起始页码	586
结束页码	592
卷号	14 期号:8
英文摘要	Sea-level change is thought to influence the frequencies of volcanic eruptions on glacial to interglacial timescales. However, the underlying physical processes and their importance relative to other influences (for example, magma recharge rates) remain poorly understood. Here we compare an approximately 360-kyr-long record of effusive and explosive eruptions from the flooded caldera volcano at Santorini (Greece) with a high-resolution sea-level record spanning the last four glacial–interglacial cycles. Numerical modelling shows that when the sea level falls by 40 m below the present-day level, the induced tensile stresses in the roof of the magma chamber of Santorini trigger dyke injections. As the sea level continues to fall to −70 or −80 m, the induced tensile stress spreads throughout the roof so that some dykes reach the surface to feed eruptions. Similarly, the volcanic activity gradually disappears after the sea level rises above −40 m. Synchronizing Santorini’s stratigraphy with the sea-level record using tephra layers in marine sediment cores shows that 208 out of 211 eruptions (both effusive and explosive) occurred during periods constrained by sea-level falls (below −40 m) and subsequent rises, suggesting a strong absolute sea-level control on the timing of eruptions on Santorini—a result that probably applies to many other volcanic islands around the world. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206956
作者单位	Department of Humanities and Social Sciences, Oxford Brookes University, Oxford, United Kingdom; Department of Earth Sciences, Royal Holloway University of London, Egham, United Kingdom; School of Geography, Geology and the Environment, Keele University, Keele, United Kingdom; School of Archaeology, University of Oxford, Oxford, United Kingdom; Department of Earth Sciences, Uppsala University, Uppsala, Sweden; Department of Earth Sciences, University of Oxford, Oxford, United Kingdom; School of the Environment, Geography and Geosciences, University of Portsmouth, Portsmouth, United Kingdom; School of Geography, Geology and the Environment, University of Leicester, Leicester, United Kingdom
推荐引用方式 GB/T 7714	Satow C.,Gudmundsson A.,Gertisser R.,et al. Eruptive activity of the Santorini Volcano controlled by sea-level rise and fall[J],2021,14(8).
APA	Satow C..,Gudmundsson A..,Gertisser R..,Ramsey C.B..,Bazargan M..,...&Hardiman M..(2021).Eruptive activity of the Santorini Volcano controlled by sea-level rise and fall.Nature Geoscience,14(8).
MLA	Satow C.,et al."Eruptive activity of the Santorini Volcano controlled by sea-level rise and fall".Nature Geoscience 14.8(2021).