Magma chamber evolution during the 1650 AD Kolumbo eruption provides clues about past and future volcanic activity

研究成果: 雜誌貢獻期刊論文同行評審

3 引文 斯高帕斯(Scopus)

摘要

Kolumbo submarine volcano lies 7 km NE of Santorini caldera and its last eruption which occurred in 1650 AD, caused damage and casualties to the nearby islands. Here a simple model of a chamber, containing silicic magma underlain by a smaller quantity of mafic magma, is utilised in order to understand the chamber behaviour during the 1650 AD eruption. Results show that in order to reproduce the duration (83–281 days) and the dense rock equivalent volume (∼2km3) of the eruption, initial overpressure in the chamber should be around 10 MPa and the mafic magma should occupy up to 5% of the chamber volume. It is found that the time needed to inject mafic magma equal to 1–15% of the chamber volume varies between 1.4–13.7 ka, if the radius of the chamber is about 1500 m as inferred from tomographic images. These long recurrence times agree well with the small number of eruptions (N= 5 ) within a period of > 70 ka and suggest that an eruption in the near future is unlikely. Volcanic activity at Kolumbo is probably triggered by a combination of exsolved volatiles and a small but steady influx of mafic melt in the chamber.

原文???core.languages.en_GB???
文章編號15423
期刊Scientific Reports
10
發行號1
DOIs
出版狀態已出版 - 1 12月 2020

指紋

深入研究「Magma chamber evolution during the 1650 AD Kolumbo eruption provides clues about past and future volcanic activity」主題。共同形成了獨特的指紋。

引用此