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Solar noble gases in an iron meteorite indicate terrestrial mantle signatures derive from Earth's core

Earth Sciences

Solar noble gases in an iron meteorite indicate terrestrial mantle signatures derive from Earth's core

M. Vogt, M. Trieloff, et al.

Explore the intriguing findings from the study conducted by Manfred Vogt, Mario Trieloff, Ulrich Ott, Jens Hopp, and Winfried H. Schwarz, which reveals that the Washington County iron meteorite contains excessive amounts of solar helium and neon. This research sheds light on the potential solar origins of noble gases in Earth's core and its implications for our understanding of the mantle's composition.

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Playback language: English
Abstract
Earth's mantle contains solar-type helium and neon, the origin of which is debated. This study analyzes the Washington County iron meteorite, finding striking excesses of solar helium and neon within its interior. This indicates that the meteorite's protolith was irradiated by solar wind, and implanted noble gases partitioned into metal melts during differentiation. The findings support the hypothesis that Earth's core may have incorporated solar noble gases and contributes to the solar signatures observed in the Earth's mantle.
Publisher
Communications Earth & Environment
Published On
May 14, 2021
Authors
Manfred Vogt, Mario Trieloff, Ulrich Ott, Jens Hopp, Winfried H. Schwarz
Tags
Earth's mantle
solar helium
neon
Washington County iron meteorite
noble gases
core
solar wind

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