Storage conditions and degassing processes of low-K and high-Al tholeiitic island-arc magmas: Experimental constraints and natural observations for Mutnovsky volcano, Kamchatka

低钾高铝拉斑斑岩岛弧岩浆的储存条件和脱气过程：堪察加穆特诺夫斯基火山的实验限制和自然观测

• 批准号: 64713829
• 负责人: Professor Dr. Francois Holtz, Ph.D.
• 金额: --
• 依托单位: Institut für Mineralogie
• 依托单位国家: 德国
• 项目类别: Infrastructure Priority Programmes
• 财政年份: 2008
• 资助国家: 德国
• 起止时间: 2007-12-31 至 2011-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/64713829?language=en
• 关键词: Storage; conditions; degassing; processes; low

The ICDP drilling on Mutnovsky vulcano is focused on the investigation of the interaction between active magmatic and adjacent hydrothermal systems. The identification of magmatic component in fluids and the determination of the overall volatile budget of the volcano are crucial for the understanding of magmatic and hydrothermal processes ongoing in the volcanic system. The proposed project should contribute new constraints on the pre-eruptive conditions, especially on the pressures (depths), temperatures and volatile contents in the magmatic chamber of Mutnovsky volcano. These constraints will be obtained from high pressure - high temperature experimental investigations on phase relations and volatile solubilities in basaltic magmas and from the studies of natural samples, in particular melt inclusions in olivines, collected from the erupted rocks and drilled by the ICDP. These data can be used to constrain a general genetic model of the formation of island arc tholeiitic series and will provide estimates on the budget and contribution of magmatic volatiles to the magmatic-hydrothermal system of Mutnovsky.

Mutnovsky火山ICDP钻探的重点是研究活动岩浆与邻近热液系统之间的相互作用。确定流体中的岩浆成分和确定火山的总体挥发性预算对于了解火山系统中正在进行的岩浆和热液过程至关重要。拟议的项目应有助于对喷发前的条件，特别是对压力（深度），温度和Mutnovsky火山岩浆室的挥发性成分的新的限制。这些限制将从高压-高温实验研究中获得，这些实验研究涉及玄武岩浆中的相关系和挥发性溶解度，以及从自然样品的研究中获得，特别是从喷发岩石中收集并由ICDP钻探的橄榄石中的熔体包裹体。这些数据可以用来约束岛弧拉斑系列形成的一般成因模型，并将提供估计的预算和贡献的岩浆挥发分的岩浆热液系统的Mutnovsky。

项目成果

Compositional and pressure effects on the solubility of H2O and CO2 in mafic melts

成分和压力对镁铁质熔体中 H2O 和 CO2 溶解度的影响

• DOI: 10.1016/j.chemgeo.2014.09.001
• 发表时间: 2014
• 期刊: Chemical Geology
• 影响因子: 3.9
• 作者: Shishkina T.A;Botcharnikov R.E;Holtz F;Almeev R;Jazwa A;Jakubiak A.
• 通讯作者: Jakubiak A.