Seismic detection of the lunar core

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

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241 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Pages (from-to)309-312
Number of pages4
JournalScience
Volume331
Issue number6015
DOIs
StatePublished - Jan 21 2011

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Iron
History
Weights and Measures

ASJC Scopus subject areas

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Weber, R. C., Lin, P. Y., Garnero, E., Williams, Q., & Lognonné, P. (2011). Seismic detection of the lunar core. Science, 331(6015), 309-312. https://doi.org/10.1126/science.1199375

Seismic detection of the lunar core. / Weber, Renee C.; Lin, Pei Ying; Garnero, Edward; Williams, Quentin; Lognonné, Philippe.

In: Science, Vol. 331, No. 6015, 21.01.2011, p. 309-312.

Research output: Contribution to journalArticle

Weber, RC, Lin, PY, Garnero, E, Williams, Q & Lognonné, P 2011, 'Seismic detection of the lunar core', Science, vol. 331, no. 6015, pp. 309-312. https://doi.org/10.1126/science.1199375
Weber RC, Lin PY, Garnero E, Williams Q, Lognonné P. Seismic detection of the lunar core. Science. 2011 Jan 21;331(6015):309-312. https://doi.org/10.1126/science.1199375
Weber, Renee C. ; Lin, Pei Ying ; Garnero, Edward ; Williams, Quentin ; Lognonné, Philippe. / Seismic detection of the lunar core. In: Science. 2011 ; Vol. 331, No. 6015. pp. 309-312.
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