Experimental Study on the Chemical Processes Associated with Formation of Volcanic Gas

与火山气体形成相关的化学过程的实验研究

基本信息

  • 批准号:
    11304040
  • 负责人:
  • 金额:
    $ 24.45万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (A)
  • 财政年份:
    1999
  • 资助国家:
    日本
  • 起止时间:
    1999 至 2001
  • 项目状态:
    已结题

项目摘要

It is well-known that volcanic volatiles control the condition of magma and are related to eruptive activities. A lot of observational studies on the chemical composition of volcanic volatiles have been already conducted, and degassing phenomena has been studied in view of theoretical point. However, experimental approach to understand the origin and evolution of volcanic volatiles has not been carried out yet. In this research project, we tried to make sure the chemical processes during the formation of volcanic gas according the following 3 steps. 1: Formation of minute bubbles under chemically-controlled environment using a high pressure apparatus. 2 : Establishment of micro-spectroscopy to, determine chemical cpmposition of fluid inclusions of synthesized or natural minerals. 3 : Improvement of in-situ chemical analyzes of volcanic gas. As to 1, we repeated bubble formation experiments under various chemical conditions As to 2, we developed a system of micro-raman spectroscopy with extremely high sensitivity. Among the many results using this system, it must be mentioned that fossil pressure of fluid inclusions, could be estimated based on pressure-dependence of raman shift of C0_2. As to 3 we developed a in-situ system of determination of volcanic gas using a micro gas chromatograph. We also obtained good results on chemical information of volcanic gas of diffuse emission.
众所周知,火山挥发分控制着岩浆的形成条件,与火山喷发活动密切相关。人们已经对火山挥发物的化学成分进行了大量的观测研究,并从理论角度研究了脱气现象。然而,迄今为止,还没有通过实验方法来了解火山挥发物的起源和演化。在本研究项目中,我们试图根据以下三个步骤确定火山气体形成过程中的化学过程。1:使用高压装置在化学控制环境下形成微小气泡。2.建立显微光谱学方法,测定合成或天然矿物流体包裹体的化学成分。3:改进火山气体的现场化学分析。对于1,我们在各种化学条件下重复进行了气泡形成实验。对于2,我们开发了具有极高灵敏度的显微荧光光谱系统。在使用该系统的许多结果中,必须提到的是,流体包裹体的化石压力可以根据C0_2的拉曼位移的压力依赖性来估计。3.研制了微型气相色谱仪现场测定火山气体的系统。对漫发射火山气体的化学信息也取得了较好的结果。

项目成果

期刊论文数量(35)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
P.A.Hernandez, J.M.Salazar, Y.Shimoke, T.Mori, K.Notsu, N.M.Perez: "Diffuse emission of CO_2 from Miyakejima Volcano, Japan"Chem.Geol. 177. 175-185 (2001)
P.A.Hernandez、J.M.Salazar、Y.Shimoke、T.Mori、K.Notsu、N.M.Perez:“日本三宅岛火山 CO_2 的扩散排放”Chem.Geol。
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    0
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Shimoike,Y.,and Notsu,K.: "Continuous chemical monitoring of volcanic gas in Izn-Oshima, Japan"J.Volcanol.Geotherm.. 101. 211-221 (2000)
Shimoike,Y. 和 Notsu,K.:“日本 Izn-Oshima 火山气体的连续化学监测”J.Volcanol.Geotherm.. 101. 211-221 (2000)
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    0
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Hernandez P.A., Notsu K., others: "Carbon Dioxide Degassing by Advective Flow from Usu Volcano, Japan"Science. 292. 83-86 (2001)
Hernandez P.A.、Notsu K. 等:“日本有珠火山通过平流脱气二氧化碳”科学。
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    0
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Shimoike Y., Notsu K.: "Continuous chemical monitoring of volcanic gas in Izu-Oshima volcano, Japan"J. Volcanol. Geotherm. Res.. 101. 211-221 (2000)
Shimoike Y.,Notsu K.:“日本伊豆大岛火山气体的连续化学监测”J.
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    0
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Y.Shimoike and K.Notsu: "Continuous chemical monitoring of volcanic gas in Izu-Oshima volcano, Japan"J.Volcanol.Geotherm.Res.. 101. 211-221 (2000)
Y.Shimoike 和 K.Notsu:“日本伊豆大岛火山气体的连续化学监测”J.Volcanol.Geotherm.Res.. 101. 211-221 (2000)
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NOTSU Kenji的其他文献

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{{ truncateString('NOTSU Kenji', 18)}}的其他基金

Studies on diffuse emission of volcanic volatiles in a monogenetic volcano area
单生火山区火山挥发分扩散排放研究
  • 批准号:
    23540569
  • 财政年份:
    2011
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Stable isotope geochemistry of copper, based on the development of isotope analyses of micron-size areas
铜的稳定同位素地球化学,基于微米级区域同位素分析的发展
  • 批准号:
    20340156
  • 财政年份:
    2008
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Advanced Study on Remote Measurement of Chemical Composition of Volcanic Gas by Infrared Spectroscopy
红外光谱遥测火山气体化学成分研究进展
  • 批准号:
    14340168
  • 财政年份:
    2002
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Earthquake Prediction Study by Geochemical Methods in Greece
希腊地球化学方法地震预报研究
  • 批准号:
    10041108
  • 财政年份:
    1998
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B).
Study of volcanic activity monitoring based on continuous measurement of vdcanic gas chemistry
基于Vdcanic气体化学连续测量的火山活动监测研究
  • 批准号:
    07454140
  • 财政年份:
    1995
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
2nd Geochemical Investigation of the Aegean Volcanic Arc
第二次爱琴海火山弧地球化学调查
  • 批准号:
    07041096
  • 财政年份:
    1995
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Geochemical Investigation of the Aegean Volcanic Arc
爱琴海火山弧的地球化学调查
  • 批准号:
    05041056
  • 财政年份:
    1993
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for international Scientific Research
Study on Chemical Monitoring of Volcanic gas using an IR spectroscopy
红外光谱法监测火山气体化学成分的研究
  • 批准号:
    05453008
  • 财政年份:
    1993
  • 资助金额:
    $ 24.45万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (B)

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Estimation of volcanic gas emission rate and elucidation of magma activity based on satellite and ground-based observations with using meteorological models
利用气象模型基于卫星和地面观测估算火山气体排放率并阐明岩浆活动
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    22K14109
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What Controls the CO2/SO2 Ratio in Arc Volcanic Gas?
是什么控制着电弧火山气体中的 CO2/SO2 比率?
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闪光式火山气体成分自动观测装置研制及潜水预报
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阿苏山中庭地区火山气体风险评价研究
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基于火山喷气孔声学特征的火山气体排放量估算方法
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    2018
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