火山可引发闪电成因至今是谜

2013-03-21 10:08

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标签：火山闪电疑惑

深红色的熔岩从火山口喷薄而出，一道闪电在火山口划过，劈开了火山口上方的红色天空。火山闪电是一种由火山作用引发的闪电现象，长期以来令科学家大惑不解。此类闪电持续时间仅数毫秒。德国摄影师马丁·莱策在全世界拍摄火山爆发的照片。（编译：嘉宇）

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           "img": "http://img3.cache.netease.com/photo/0001/2013-03-21/900x600_8QFVLELD4T8F0001.jpg",
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           "osize": {"w":964,"h":566},
           "title": "",
           "note": "日本南部鹿儿岛的樱岛火山爆发时产生的闪电。",
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        {
           "id": "8QFVLEND4T8F0001",
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           "note": "当火山爆发产生的红色熔岩较少时，就会发生火山闪电现象。科学家还不能完全解释火山闪电的发生原因，一种说法是火山闪电是火山爆发产生的带电粒子与大气互相作用的结果。",
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           "note": "守株待兔。马丁·莱策在火山口附近等待了好几天，最终在2013年2月25日下午拍摄到了火山闪电的身影。",
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           "osize": {"w":964,"h":643},
           "title": "",
           "note": "英国地址调查所火山学学科带头人苏·奥洛林说，火山闪电的成因至今是个迷。",
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           "note": "熔岩的温度高达1250摄氏度。火山喷发时，熔岩被抛到空中，时速达800公里/小时。",
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           "note": "摄影师马丁·莱策说：“我在樱岛火山周围等了好几天。能有这样的经历的人少之又少。我永远也忘不了自己被有毒气体围绕的那些时刻，你能感觉到熔岩的热量，火山喷发的声音比飞机起飞的噪音还要大。”",
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火山可引发闪电 成因至今是谜

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火山可引发闪电成因至今是谜

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