Seismic detection of the lunar core

Renee C. Weber, Pei Ying Lin, Edward J. Garnero, Quentin Williams, Philippe Lognonné

研究成果: 雜誌貢獻期刊論文同行評審

310 引文 斯高帕斯(Scopus)

摘要

Despite recent insight regarding the history and current state of the Moon from satellite sensing and analyses of limited Apollo-era seismic data, deficiencies remain in our understanding of the deep lunar interior. We reanalyzed Apollo lunar seismograms using array-processing methods to search for the presence of reflected and converted seismic energy from the core. Our results suggest the presence of a solid inner and fluid outer core, overlain by a partially molten boundary layer. The relative sizes of the inner and outer core suggest that the core is ∼60% liquid by volume. Based on phase diagrams of iron alloys and the presence of partial melt, the core probably contains less than 6 weight % of lighter alloying components, which is consistent with a volatile-depleted interior.

原文英語
頁(從 - 到)309-312
頁數4
期刊Science
331
發行號6015
DOIs
出版狀態已發佈 - 2011 一月 21
對外發佈

ASJC Scopus subject areas

  • 多學科

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