Violence and Volume: an experimental study of CO2 driven eruptions of Colli Albani

暴力与体积:二氧化碳驱动阿尔巴尼山喷发的实验研究

基本信息

项目摘要

The Pozzolane Rosse eruption (457 ka) of the Colli Albani volcano complex in Italy was a high volume explosive eruption of foiditic, low viscosity, low SiO2, mafic magma. The composition of the P. Rosse magma was also CO2- and CaO-rich. The volume of this eruption falls outside the range of explosive eruptions on a plot of eruption volume as a function of SiO2 content. Here we will determine the viscosity of foiditic melts for the first time; and also determine the effect of CO2 on the viscosity of these melts.The goal is to obtain an insight into the reason why such a low SiO2 melt erupted with such violence and volume. Such eruptions usually only occur in SiO2–rich magmas, as bubbles can not escape easily from high-viscosity magmas. In general, it would be expected that the viscosity of the foiditic melt was so low that CO2 bubbles would effusively escape.
意大利科利阿尔巴尼火山群的火山灰罗斯喷发(457ka)是一次高容量、低粘度、低二氧化硅、镁铁质岩浆的爆炸性喷发。 P. Rosse 岩浆的成分也富含二氧化碳和氧化钙。在喷发体积与 SiO2 含量的函数关系图中,该喷发体积超出了爆炸性喷发的范围。在这里,我们将首次测定熔体熔体的粘度;并确定 CO2 对这些熔体粘度的影响。目标是深入了解 SiO2 含量如此低的熔体以如此剧烈和体积喷发的原因。这种喷发通常只发生在富含 SiO2 的岩浆中,因为气泡不易从高粘度岩浆中逸出。一般来说,预计熔体熔体的粘度非常低,以至于二氧化碳气泡会大量逸出。

项目成果

期刊论文数量(3)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Influence of Fe2+/Fetot on the viscosity of melts from the Colli Albani Volcanic District (Italy) – foidite to phonolite
Fe2 /Fetot 对科利阿尔巴尼火山区(意大利)熔体粘度的影响 â foidite 到 phonolite
Rheology of melts from the colli albani volcanic district (Italy): a case study
阿尔巴尼山火山区(意大利)熔体的流变学:案例研究
Influence of CO2 on the rheology of melts from the Colli Albani Volcanic District (Italy): foidite to phonolite
CO2 对科利阿尔巴尼火山区(意大利)熔体流变学的影响:从 foidite 到 phonolite
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Professorin Dr. Sharon Webb其他文献

Professorin Dr. Sharon Webb的其他文献

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{{ truncateString('Professorin Dr. Sharon Webb', 18)}}的其他基金

Viscosity of Evolving Magmas: A case study of the Glass House Mountains, Australia
演化岩浆的粘度:澳大利亚玻璃屋山脉的案例研究
  • 批准号:
    396166122
  • 财政年份:
    2017
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Unmixing of Phosphorus-Bearing Melts on Earth and Mars
地球和火星上含磷熔体的分解
  • 批准号:
    278990208
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Influence of oxygen fugacity on the viscosity of CO2-, H2O-, and halogen-bearing basaltic melts
氧逸度对 CO2、H2O 和含卤素玄武岩熔体粘度的影响
  • 批准号:
    271760878
  • 财政年份:
    2015
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Rheology of the evolved alkaline magmas of Vesuvius and the Phlegraean Fields: The anomalous effects of chlorine and fluorine
维苏威火山和坎皮莱格瑞地区演化的碱性岩浆的流变学:氯和氟的异常效应
  • 批准号:
    166279504
  • 财政年份:
    2010
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Shear modulus, heat capacity, viscosity and structure
剪切模量、热容、粘度和结构
  • 批准号:
    5434623
  • 财政年份:
    2004
  • 资助金额:
    --
  • 项目类别:
    Research Grants
Effect of the Volatiles S, Cl and F on Magma Rheology
挥发物S、Cl、F对岩浆流变的影响
  • 批准号:
    5343220
  • 财政年份:
    2001
  • 资助金额:
    --
  • 项目类别:
    Priority Programmes

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