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长途大巴 • 阅读主题 - 印度洛那陨坑与印度历史传说当中的灾变

印度洛那陨坑与印度历史传说当中的灾变

印度洛那陨坑与印度历史传说当中的灾变

帖子yijun 在 22 Aug 2009, 18:17

印度洛那陨坑
[img]http://www.sciencenet.cn/upload/news/images/2009/8/2009813111258266.jpg[/img]
洛那陨坑,位于印度西部马哈拉施特拉邦,周长约有6000英尺(1800米),深500英尺(约150米),中间有一个盐水湖。科学家断定它的构造是由小行星撞击而成,因为那里存在陨玻长石,这是一种只有在极度高速撞击情况下才能形成的玻璃。撞击发生在约5万年前。这张仿真彩色照片是由美国航天局发射的特拉卫星上的先进太空发热和反射电波仪拍摄的。

这个很有意思,5万年,当时印度大陆应该已经有人类分布,不知道这次灾变,是否给当地人留下深刻印象,从而在后世的灾变传说当中,留下痕迹。这么大的陨石坑,足够引起南亚大陆很大一部分地区,被尘云覆盖好一段时间了。当然,印度大陆后来的主体,是来自欧洲的游牧人群,但其土著,也应该融入了这个主体,并以灾变的故事,参杂入后世的传说。
例如佛教的灾变史结构,未必不是这样一种来源。
yijun
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