kingdomoo 2010-11-21 19:51
火山噴發 驚心動魄
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<font size="2">馬榮火山(Mayon volcano)噴發 (JAY DIRECTO/AFP/ Getty Images) <br />
組圖:火山噴發 驚心動魄<br />
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【大紀元10月19日訊】火山噴發時,地動山搖,烈焰熊熊,煙塵滾滾,其聲如雷, 真是驚心動魄。根據火山的活動情況,科學家把它們分類為死火山、休眠火山和活火山。死火山是指在這次歷史文明時期從來沒有活動過,但在史前文明時期曾發生過噴發。此類火山已經喪失了活動能力。休眠火山,指本次歷史文明以來曾經噴發過,但長期以來處於相對靜止狀態的火山。這類火山仍具有活動能力,或者尚不能斷定是否喪失活動能力。活火山是指尚在活動或者週期性噴發的火山。這類火山正處於活動的旺盛期。 <br />
因為岩漿性質、地下岩漿庫內壓力、火山通道形狀、火山噴發環境(水下或地上)等諸多因素的影響,火山噴發的形式也是多種多樣的。 <br />
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火山噴發出的大量火山灰和火山氣體,對氣候造成極大的影響。同時,損壞或摧毀附近的村莊,使人們無家可歸,甚至造成死亡。另一方面,它又能創造一些土地資源和礦產資源。下面是今年夏季重大火山噴發時的幾組照片。(圖片來源:Getty Images) <br />
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10月7日在巴布亞新幾內亞的新不列顛島的嗒瓦瓦火山(Tavurvur colcano)噴發。<br />
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嗒瓦瓦火山的巖江流入辛譜森海港(BRUCE ALEXANDER/AFP/ Getty Images) <br />
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嗒瓦瓦火山(Tavurvur colcano)噴發 (BRUCE ALEXANDER/AFP/ Getty Images) <br />
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9月7日在印尼的爪哇島博來莫山(Mount Bromo)(左)和塞莫山(Mount Semeru)(右)釋放濃煙。一位科學家稱這兩座火山可能將噴發。 <br />
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博來莫山(Mount Bromo)(左)和塞莫山(Mount Semeru)(右)釋放濃煙 (Tarko SUDIARNO/AFP/ Getty Images) <br />
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8月31日在印度洋的法屬留尼旺島(Reunion)的皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發, 這座火山是世界上最活躍的活火山之一。 <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET/AFP/Getty Images) <br />
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博來莫山(Mount Bromo)(左)和塞莫山(Mount Semeru)(右)釋放濃煙 (Tarko SUDIARNO/AFP/ Getty Images) <br />
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8月31日在印度洋的法屬留尼旺島(Reunion)的皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發, 這座火山是世界上最活躍的活火山之一。 <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET/AFP/Getty Images) <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET/AFP/Getty Images) <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET/AFP/Getty Images) <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET/AFP/Getty Images) <br />
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皮頓德拉富內茲火山(Piton de la Fournaise volcano)噴發 (RICHARD BOUHET/AFP/Getty Images)</font><br />
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