Formation of magnetic anomalies antipodal to lunar impact basins: two-dimensional model calculations

L. L. Hood, Z. Huang

Research output: Contribution to journalArticlepeer-review

70 Scopus citations

Abstract

The production of large-scale magnetic fields and associated crustal magnetization in lunar basin-forming impacts is investigated theoretically. Two-dimensional numerical models of the partially ionized vapor cloud produced in such impacts show that the low-density periphery of the cloud expands thermally around the Moon and converges near the antipode in a time of the order of 400 to 500 s for silicate impactor velocities of 15 to 20 km/s. Meteoroid impact plasmas appear capable of explaining a major part of the large-scale magnetization detected thus far from lunar orbit. -from Authors

Original languageEnglish (US)
Pages (from-to)9837-9846
Number of pages10
JournalJournal of geophysical research
Volume96
Issue numberB6
DOIs
StatePublished - 1991

ASJC Scopus subject areas

  • Geophysics
  • Forestry
  • Oceanography
  • Aquatic Science
  • Ecology
  • Water Science and Technology
  • Soil Science
  • Geochemistry and Petrology
  • Earth-Surface Processes
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)
  • Space and Planetary Science
  • Palaeontology

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