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Effect of gas emissions from Tianchi volcano (NE China) on environment and its potential volcanic hazards

Science China Earth Sciences 2006年第3期49卷 304-310页

作者： GUO Zhengfu LIU Jiaqi HAN Jingtai HE Huaiyu DAI Guoliang YOU Haitao Institute of Geology and Geophysics Chinese Academy of SciencesBeijing 100029China

The Tianchi volcano in the Changbai Mountains is located on the boundary between China and North *** are many times of eruptions of the Tianchi volcano during the *** of its large eruptions occurred around 1000 years ago dated by ^(14)C method and historical *** of products of the largest Tianchi volcanic eruption studied is characterized by comendi-tic Plinian fallout and unwelded ignimbrite,which are mainly distributed in China and North *** is about 4.4 km long and 3.4 km wide,which had filled with water(*** Lake).The Tianchi volcanic cone is about 2700 m high above sea *** Tianchi Lake is located on the summit of the volcanic cone,that is also highest peak of the Changbai Mountains in northeastern *** study analyzed Cl,F,S and H_(2)O concentrations of melt inclusions in the phenocryst min-erals(anorthoclase and quartz)and co-existing matrix glasses using the electron microprobe and estimated environmental effect of Tianchi volcanic *** authors proposed a new method to evaluate future eruption of active volcano and estimate potential volcanic hazards based on contents of volatile *** this method,we made a perspective of future volcanic hazard in this region.

关键词： tianchi volcano volcanic gas environmental change volcanic hazard monitoring active volcano

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Effect of gas emissions from Tianchi volcano(NE China) on environment and its potential volcanic hazards

Effect of gas emissions from Tianchi volcano(NE China) on en...

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中国科学院地质与地球物理研究所2006学术年会

作者： GUO Zhengfu,LIU Jiaqi,HAN Jingtai,HE Huaiyu,DAI Guoliang & YOU Haitao (Institute of Geology and Geophysics,Chinese Academy of Science,Beijing.100029)

The Tianchi volcano in the Changbai Mountains is located on the boundary between China and North *** are many times of eruptions of the Tianchi volcano during the *** of its large eruptions occurred around 1000 years ago dated by 14C method and historical *** of products of the largest Tianchi volcanic eruption studied is characterized by comendi- tic Plinian fallout and unwelded ignimbrite,which are mainly distributed in China and North *** is about 4.4 km long and 3.4 km wide,which had filled with water(*** Lake).The Tianchi volcanic cone is about 2700 m high above sea *** Tianchi Lake is located on the summit of the volcanic cone,that is also highest peak of the Changbai Mountains in northeastern *** study analyzed Cl,F,S and H2O concentrations of melt inclusions in the phenocryst min- erals(anorthoclase and quartz) and co-existing matrix glasses using the electron microprobe and estimated environmental effect of Tianchi volcanic *** authors proposed a new method to evaluate future eruption of active volcano and estimate potential volcanic hazards based on contents of volatile *** this method,we made a perspective of future volcanic hazard in this re- gion.

关键词： Tianchi volcano volcanic gas environmental change volcanic hazard monitoring active volcano

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