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黄石公园的美丽与哀愁(1/2)

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黄石公园的mei丽与哀愁

我写小说,大家看小说,除了娱乐之外,如果还能xi收到一点旁的知识,那不是更好。

所以我zuo了这个分卷,专门记录一些小说中要用到的知识\常识的一些介绍,有兴趣的朋友,也可以读读。

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mei国黄石国家公园似乎永远会把mei丽与哀愁与灾难联系在一起,因为在它的下面埋藏着一座世界上极少有的“超级火山”过去的1700万年中,这座“超级火山”先后有过142次大规模的pen发,最近的一次pen发发生在64。2万年前,正是它造就了如今黄石公园的雄奇与壮丽。而据专家称这座“超级火山”的pen发周期是60万年,zhongzhong迹象也表明:最近它的确在渐渐苏醒!

mei国黄石国家公园位于mei国西北bu怀俄明、蒙大拿和爱达荷三州jiao界chu1,是mei国建立最早的,也是目前世界上最大的国家公园。19世纪中期,mei国有一批自然爱护者极力要求政府保护mei国的自然资源和文化遗产,在他们的倡导推动下,1872年由政府chu面建立了黄石公园。它也是世界上首个国家公园,而今天,mei国已有这样的国家公园54个

黄石公园占地达8956平方公里!里面有一个火山爆发后形成的mei国最大的高山湖——黄石湖,湖岸长达180公里。两岸峡bi险峻巍峨,其中有一段叫黄石峡谷,谷长24公里,shen400米,宽约500米,两侧从橙黄到橘红se的岸层se彩,光耀夺目!“黄石公园”也由此得名。在这样mei丽的湖光山se之下,最近mei国地质勘探局地质学家利兹#183;mogen发现湖床底bu隆起了一个100英尺高的“大包”这个“大包”有2000英尺长。此前科学家们已证实黄石公园下的岩浆ti积有40~50公里长,20公里宽,大约10公里厚,而且这团岩浆,还在继续变大。其实,从1923年至今,黄石公园bu分地区的地面已经上升了70厘米!这一迹象表明黄石公园地底下正在进行着一场大规模的“膨胀活动”

黄石公园最独特的mei丽是被称为世界奇观的间歇pen泉。全园共有间歇pen泉300多chu1,占全世界此类pen泉的一半以上。最有名的是oldfaithfulerupts(意译“忠诚”)pen泉,它每次pen发时都能把7500至1。2万加仑的泉水抛向高空,水柱高达55米!guntang的热水遇冷气后又在空中凝结成白se云柱,壮观中还透chu一些妩媚;在过去的100多年里,它每天都会这样pen发penshe121至23次,从不停息,可如今它的pen发开始变得异常了。间歇pen泉实际上是因地底岩浆室里ju量的热ye和蒸汽的penxiechu口,岩浆室中ju大压力通过它而得到释放。目前,公园里有的间歇pen泉已经停止了pen发,这并非表明火山已经开始“衰老”了,正如科耐特博士所说:可事实并非如此,这只是一个虚假的安全信号,它是另一场更大风暴来临之前的短暂平静!因为岩浆室中的压力降低到一个临界点

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