如果你正在寻找一次一生难忘的冒险经历，那么来一场蹦极，从直升机上跳到活火山口怎么样？
If you're looking for the adventure of a lifetime, how about going bungee jumping off a helicopter into the crater of a live volcano?
科马提岩于1969年首次被发现，它是地球上已知的最古老的火山岩，含镁量是大多数火山岩的三倍。
First identified in 1969, komatiites are Earth's oldest known volcanic rocks and contain three times as much magnesium as do most volcanic rocks.
几个世纪以来，这座火山约有200次爆发的记录，但与其他火山相比，这座火山的爆发程度迄今为止都相当轻，造成的死亡和破坏较少。
Some two hundred eruptions have been recorded down through the centuries, but compared with other volcanoes, most of its eruptions have so far been fairly light in terms of death and destruction.
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