J.T. Wilson
Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex
Wilson, J.T.; Eke, V.R.; Massey, R.J.; Elphic, R.C.; Jolliff, B.L.; Lawrence, D.J.; Llewellin, E.W.; McElwaine, J.N.; Teodoro, L.F.A.
Authors
Dr Vincent Eke v.r.eke@durham.ac.uk
Associate Professor
Prof Richard Massey r.j.massey@durham.ac.uk
Professor
R.C. Elphic
B.L. Jolliff
D.J. Lawrence
Professor Edward Llewellin ed.llewellin@durham.ac.uk
Professor
Professor Jim Mcelwaine james.mcelwaine@durham.ac.uk
Professor
L.F.A. Teodoro
Abstract
We reconstruct the abundance of thorium near the Compton-Belkovich Volcanic Complex on the Moon, using data from the Lunar Prospector Gamma Ray Spectrometer. We enhance the resolution via a pixon image reconstruction technique and find that the thorium is distributed over a larger (40km × 75 km) area than the (25km × 35 km) high-albedo region normally associated with Compton-Belkovich. Our reconstructions show that inside this region, the thorium concentration is 14–26ppm. We also find additional thorium, spread up to 300km eastward of the complex at ∼2 ppm. The thorium must have been deposited during the formation of the volcanic complex, because subsequent lateral transport mechanisms, such as small impacts, are unable to move sufficient material. The morphology of the feature is consistent with pyroclastic dispersal, and we conclude that the present distribution of thorium was likely created by the explosive eruption of silicic magma.
Citation
Wilson, J., Eke, V., Massey, R., Elphic, R., Jolliff, B., Lawrence, D., …Teodoro, L. (2015). Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex. Journal of Geophysical Research: Planets, 120(1), 92-108. https://doi.org/10.1002/2014je004719
Journal Article Type | Article |
---|---|
Acceptance Date | Dec 23, 2014 |
Online Publication Date | Dec 29, 2014 |
Publication Date | Jan 26, 2015 |
Deposit Date | Dec 10, 2014 |
Publicly Available Date | Mar 28, 2024 |
Journal | Journal of Geophysical Research: Planets |
Print ISSN | 2169-9097 |
Electronic ISSN | 2169-9100 |
Publisher | American Geophysical Union |
Peer Reviewed | Peer Reviewed |
Volume | 120 |
Issue | 1 |
Pages | 92-108 |
DOI | https://doi.org/10.1002/2014je004719 |
Keywords | Astrophysics, Earth and Planetary Astrophysics |
Related Public URLs | http://adsabs.harvard.edu/abs/2014arXiv1409.1209W |
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Copyright Statement
Wilson, J.T., Eke, V.R., Massey, R.J., Elphic, R.C., Jolliff, B.L., Lawrence, D.J., Llewellin, E.W., McElwaine, J.N. and Teodoro, L.F.A. (2015), Evidence for explosive silicic volcanism on the Moon from the extended distribution of thorium near the Compton-Belkovich Volcanic Complex, Journal of geophysical research: planets, 120(1), 92-108, doi: 10.1002/2014JE004719. To view the published open abstract, go to https://doi.org and enter the DOI.
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