Evidence for basaltic volcanism on the Moon within the past 100 million years

S. E. Braden, J. D. Stopar, Mark Robinson, S. J. Lawrence, C. H. Van Der Bogert, H. Hiesinger

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

The bulk of basaltic magmatism on the Moon occurred from 3.9 to 3.1 billion years ago on the ancient lunar mare plains1. There is evidence for basaltic volcanism as recently as 2.9 billion years ago from crystallization ages2 and a billion years ago from stratigraphy3,4. An enigmatic surface formation named Ina (18.65° N, 5.30° E) may represent much younger mare volcanism, but age estimates are poorly constrained5-8. Here we investigate 70 small topographic anomalies, termed irregular mare patches (100-5,000m maximum dimension), on the lunar nearside with irregular morphologies and textures similar to Ina, using Lunar Reconnaissance Orbiter narrow angle camera images9, digital terrain models and wide angle camera colour ratios. The irregular mare patches exhibit sharp, metre-scale morphology with relatively fewsuperposed impact craters larger than ten metres in diameter. Crater distributions from the three largest irregular mare patches imply ages younger than 100 million years, based on chronology models of the lunar surface10,11. The morphology of the features is also consistent with small basaltic eruptions that occurred significantly after the established cessation of lunar mare basaltic volcanism. Such late-stage eruptions suggest a long decline of lunar volcanism and constrain models of the Moon's thermal evolution.

Original languageEnglish (US)
Pages (from-to)787-791
Number of pages5
JournalNature Geoscience
Volume7
Issue number11
DOIs
StatePublished - Nov 5 2014

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Moon
volcanism
crater
volcanic eruption
thermal evolution
digital terrain model
chronology
magmatism
crystallization
texture
anomaly
young

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Cite this

Braden, S. E., Stopar, J. D., Robinson, M., Lawrence, S. J., Van Der Bogert, C. H., & Hiesinger, H. (2014). Evidence for basaltic volcanism on the Moon within the past 100 million years. Nature Geoscience, 7(11), 787-791. https://doi.org/10.1038/ngeo2252

Evidence for basaltic volcanism on the Moon within the past 100 million years. / Braden, S. E.; Stopar, J. D.; Robinson, Mark; Lawrence, S. J.; Van Der Bogert, C. H.; Hiesinger, H.

In: Nature Geoscience, Vol. 7, No. 11, 05.11.2014, p. 787-791.

Research output: Contribution to journalArticle

Braden, SE, Stopar, JD, Robinson, M, Lawrence, SJ, Van Der Bogert, CH & Hiesinger, H 2014, 'Evidence for basaltic volcanism on the Moon within the past 100 million years', Nature Geoscience, vol. 7, no. 11, pp. 787-791. https://doi.org/10.1038/ngeo2252
Braden SE, Stopar JD, Robinson M, Lawrence SJ, Van Der Bogert CH, Hiesinger H. Evidence for basaltic volcanism on the Moon within the past 100 million years. Nature Geoscience. 2014 Nov 5;7(11):787-791. https://doi.org/10.1038/ngeo2252
Braden, S. E. ; Stopar, J. D. ; Robinson, Mark ; Lawrence, S. J. ; Van Der Bogert, C. H. ; Hiesinger, H. / Evidence for basaltic volcanism on the Moon within the past 100 million years. In: Nature Geoscience. 2014 ; Vol. 7, No. 11. pp. 787-791.
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