ArticleCommunications earth & environment2024
A lunar core dynamo limited to the Moon's first ~140 million years.
Article in Communications earth & environment, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.
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Who cites it
6 citing papers in PubMed.
- Magmatic origin of the Dewar magnetic anomaly: Implications for an early lunar dynamo.Science advances · 2026Article
- Moon's farside near-zero paleomagnetic field suggests a global lunar dynamo cessation.Science advances · 2026Article
- A mantle assist for the early geodynamo and planetary shielding.National science review · 2026Article
- Magnetic signatures and origins of ferromagnetic minerals in Chang'e-6 lunar farside soils.Nature communications · 2025Article
- Article
- Terrestrial atmospheric ion implantation occurred in the nearside lunar regolith during the history of Earth's dynamo.Communications earth & environment · 2025Article
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Authors and funding
7 authors.
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Abstract
Single crystal paleointensity (SCP) reveals that the Moon lacked a long-lived core dynamo, though mysteries remain. An episodic dynamo, seemingly recorded by some Apollo basalts, is temporally and energetically problematic. We evaluate this enigma through study of ~3.7 billion-year-old (Ga) Apollo basalts 70035 and 75035. Whole rock analyses show unrealistically high nominal magnetizations, whereas SCP indicate null fields, illustrating that the former do not record an episodic dynamo. However, deep crustal magnetic anomalies might record an early lunar dynamo. SCP studies of 3.97 Ga Apollo breccia 61016 and 4.36 Ga ferroan anorthosite 60025 also yield null values, constraining any core dynamo to the Moon's first 140 million years. These findings suggest that traces of Earth's Hadean atmosphere, transferred to the Moon lacking a magnetosphere, could be trapped in the buried lunar regolith, presenting an exceptional target for future exploration.
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