New research reveals that after its initial formation 100 million years ago, the Sierra Nevada ‘died’ during volcanic eruptions that blasted lava across much of the American West 40 million to 20 million years ago. Then, tens of millions of years later, the Sierra Nevada mountain range as we know it today was ‘reborn.’
Title: Sierra Nevada range should celebrate two birthdays
Sourced From: www.sciencedaily.com/releases/2021/11/211115090257.htm
Published Date: Mon, 15 Nov 2021 09:02:57 EST
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