| 郭光裕,林卓虹.腾冲地区晚新生代火山活动浅析[J].地质找矿论丛,1999,(2):8-15 |
| 腾冲地区晚新生代火山活动浅析 |
| DISCUSSION ON LATE CENOZOIC VOLCANIC ACTIVITIES IN TENGCHONG AREA, YUNNAN PROVINCE, CHINA |
| 投稿时间：1999-05-07 修订日期：1999-05-19 |
| DOI：10.6053/j.issn.1001-1412.1999.2. 002 |
| 中文关键词: 火山活动 喷发旋回 地质年龄 |
| 英文关键词:Volcanism eruption cycle geological age |
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| 中文摘要: |
| 腾冲火山喷发活动具有多期多次性,并且各期各次火山岩在空间上存在复杂的重叠关系。本文应用数学地质方法对火山岩地质年龄值和某些重要化学组分进行研究,结合火山岩岩石化学特征、野外产状、风化剥蚀程度等进行分期分类。在此基础上,将该区火山活动划分为5个喷发期。它们组成由基性喷发向中酸性喷发过渡的2个喷发旋回。最后,对该区未来火山喷活动进行了预测。 |
| 英文摘要: |
| Volcanic activity in Tengchong area is of multi stages.Various volcanics are spatially superimposed. This paper uses geomath techniques to deal with geological ages and major chemical compostion of volcanics on basis of petrochemical feature, field occurrences and erosion degree and division of volcanism is made into 5 eruption stages and 2 cycles. The future eruption is predicted. |
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