Living reference work entry
Irregular-shaped, shallow, rimless depressions found on Mercury probably formed by loss of volatiles; some have high-reflectance interiors and halos.
Irregular-shaped, shallow, rimless, depressions on Mercury (Fig. 1). Some have high-reflectance interiors and halos. The bright material has a spectral slope in the visible to near-infrared that is shallower (“bluer”) than that of the global average (Blewett et al. 2010, 2013). Hollows occur as isolated individuals, in small clusters, and in extensive groupings where many hollows have coalesced (Blewett et al. 2011).
KeywordsSolar Wind Central Peak Impact Crater Crater Floor Volcanic Vent
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- Blewett DT, Chabot NL, Denevi BW, Ernst CM, Head JW, Izenberg NR, Murchie SL, Solomon SC, Nittler LR, McCoy TJ, Xiao Z, Baker DMH, Fassett CI, Braden SE, Oberst J, Scholten F, Preusker F, Hurwitz DM (2011) Hollows on Mercury: MESSENGER evidence for geologically recent volatile-related activity. Science 333:1856CrossRefGoogle Scholar
- Blewett DT, Vaughan WM, Xiao Z, Chabot NL, Denevi BW, Ernst CM, Helbert J, D’Amore M, Maturilli A, Head JW, Solomon SC (2013) Mercury’s hollows: constraints on formation and composition from analysis of geological setting and spectral reflectance. J Geophys Res Planets 118:1013–1032. doi:10.1029/2012je004174CrossRefGoogle Scholar
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