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English

A subsequent caldera-forming eruption occurred about 160,000 years ago. It formed the relatively small caldera that contains the West Thumb of Yellowstone Lake. Since the last supereruption, a series of smaller eruptive cycles between 640,000 and 70,000 years ago, has nearly filled in the Yellowstone Caldera with 80 different eruptions of rhyolitic lavas such as those that can be seen at Obsidian Cliffs and basaltic lavas which can be viewed at Sheepeater Cliff .

Chinese

陷落火山口形成后的一次爆发发生在约16万年前,这一次形成了相对较小并包括如今黄石湖的陷落火山口。 自上一次超级爆发后,从64万年至7万年前这段时间里,黄石火山口一带经历了一系列较小型爆发周期,逾八十次的爆发形成了目前遍布黄石火山口内的熔岩地表,包括黑曜石崖的流纹岩地表和吃羊人崖 (英语 : Sheepeater Cliff ) 的玄武岩地表。