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Paleo Disasters

机译:古灾难

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摘要

"You will bleed." Sean Lynch, a consulting archaeologist in Calgary, reminds himself of this every time he works a glassy volcanic rock called obsidian into an arrowhead. Obsidian is one of the sharpest naturally occurring materials on Earth and was used in Canada for over 9,000 years to make weapons that sliced through animals (and now the hands of archaeologists like Lynch). Aside from obsidian, volcanoes have also long been sources of cataclysmic danger that humans have feared and revered. Awareness of their dangers is largely nonexistent in modern Canada, but researchers have recently found evidence that ancient volcanic eruptions not only dwarf those from modern times, but happened more often than you'd think. Should paleohistory repeat itself, will we be ready?
机译:“你会流血的。”卡尔加里的一名咨询考古学家肖恩·林奇(Sean Lynch)每次在箭头上用黑曜石制成的玻璃状火山岩时都会想起这一点。黑曜石是地球上最锐利的自然存在的材料之一,在加拿大使用了9000多年,用于制造可以切穿动物的武器(现在是像林奇这样的考古学家的手)。除了黑曜石外,火山还长期以来一直是人类所恐惧和崇敬的灾难性危险的根源。在现代加拿大,人们几乎没有意识到它们的危险,但是研究人员最近发现了证据,表明古老的火山爆发不仅使现代火山爆发相形见,,而且发生的次数比您想象的要多。古史应该重演吗,我们准备好了吗?

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