The Outer Solar System Supplied a Surprising Amount of Earth’s Water - by ET_Exists
Since the Earth formed in this inner part of the nebula, the long-standing hypothesis has been the majority of the Earth-forming materials also came from the inner portion, as well, so this most recent research could help reshape our understanding of both the formation and evolution of our own solar system.
“This contribution of outer Solar System material played a vital role in establishing the Earth’s inventory of volatile chemicals.,” Dr. Rehkämper said in a. “It looks as though without the contribution of outer Solar System material, the Earth would have a much lower amount of volatiles than we know it today – making it drier and potentially unable to nourish and sustain life.”
For the study, the researchers examined 18 meteorites that originated from a variety of locales through our solar system, with 11 of the 18 coming from the inner solar system, and are known as non-carbonaceous meteorites. The remaining 7 of the 18 coming from the outer solar system and are known asThe researchers discovered that while carbonaceous bodies accounted for only about 10 percent of Earth’s entire mass, this same material is responsible for about 50 percent of Earth’s zinc supply.
“We’ve long known that some carbonaceous material was added to the Earth, but our findings suggest that this material played a key role in establishing our budget of volatile elements, some of which are essential for life to flourish,” Rayssa Martins, who is a PhD Candidate in the Department of Earth Science and Engineering, and lead author of the study, said in aFor next steps in their research, the team will examine Martian meteorites, for which there are currently five known on Earth, along...
. “Analyzing zinc isotopes in moon rocks will help us to test this hypothesis and determine whether the colliding asteroid played an important part in delivering volatiles, including water, to the Earth.”
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