Where Did Earth's Oxygen Come From? Scientists Hint At An Unexpected Source
Summary by Ground News
Twenty-one percent of the atmosphere consists of this life-giving element. In the distant past, as far back as the Neoarchaic era 2.8 to 2.5 billion years ago, this oxygen was almost absent. The research suggests that at least some of Earth's early oxygen came from a tectonic source via the movement and destruction of the Earth's crust.Published 2 months ago
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