An Impactor Origin for Lunar Magnetic Anomalies

  title={An Impactor Origin for Lunar Magnetic Anomalies},
  author={Mark A. Wieczorek and Benjamin P. Weiss and Sarah T. Stewart},
  pages={1212 - 1215}
Bringing Magnetic Materials to the Moon The Apollo missions to the Moon revealed that portions of the lunar crust are strongly magnetized. Lunar rocks are poor at recording the magnetic field, thus these magnetic anomalies have been difficult to explain. Based on numerical simulations of large-scale impacts, Wieczorek et al. (p. 1212; see the Perspective by Collins) show that the vast majority of lunar magnetic anomalies can be explained by highly magnetic materials that originated outside the… 
Moonstruck Magnetism
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Iron Abundances in Lunar Impact Basin Melt Sheets From Orbital Magnetic Field Data
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The lunar dynamo
It has now been established that a dynamo magnetic field likely existed on the Moon from at least 4.5 billion to 3.56 billion years ago, with an intensity similar to that at the surface of Earth today.
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Is the Lunar Magnetic Field Correlated With Gravity or topography?
Magnetic field measurements made from orbit show that there are strong magnetic anomalies on the Moon, but many of these show no clear correlation with known geological processes. Given that the


Magnetic fields of lunar multi‐ring impact basins
Abstract— We survey the magnetic fields of lunar multi‐ring impact basins using data from the electron reflectometer instrument on the Lunar Prospector spacecraft. As for smaller lunar craters, the
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It is demonstrated that Basin-forming impact events are energetic enough to have unlocked the Moon from synchronous rotation, and it is proposed that the subsequent large-scale fluid flows in the core, excited by the tidal distortion of the core–mantle boundary, could have powered a lunar dynamo.
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During the time period 1961–1972, 11 magnetometers were sent to the moon. The primary purpose of this paper is to review the results of lunar magnetometer data analysis, with emphasis on the lunar
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Maps of relatively strong crustal magnetic field anomalies detected at low altitudes with the magnetometer instrument on Lunar Prospector are presented. On the lunar nearside, relatively strong
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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
A review of lunar paleointensity data and implications for the origin of lunar magnetism
The saturation remanence normalization method of paleointensity estimation has been applied to more than 50 lunar samples, and has been calibrated in terms of standard intensity determinations done