Global inventory and characterization of pyroclastic deposits on Mercury: New insights into pyroclastic activity from MESSENGER orbital data

  title={Global inventory and characterization of pyroclastic deposits on Mercury: New insights into pyroclastic activity from MESSENGER orbital data},
  author={Timothy A. Goudge and James W. Head and Laura Kerber and David T. Blewett and Brett W. Denevi and Deborah Domingue and Jeffrey J. Gillis‐Davis and Klaus Gwinner and J. Helbert and Gregory M. Holsclaw and Noam R. Izenberg and Rachel L. Klima and William E. McClintock and Scott L. Murchie and Gregory A. Neumann and David E. Smith and Robert Strom and Zhiyong Xiao and Maria T. Zuber and Sean C. Solomon},
  journal={Journal of Geophysical Research: Planets},
  pages={635 - 658}
We present new observations of pyroclastic deposits on the surface of Mercury from data acquired during the orbital phase of the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission. The global analysis of pyroclastic deposits brings the total number of such identified features from 40 to 51. Some 90% of pyroclastic deposits are found within impact craters. The locations of most pyroclastic deposits appear to be unrelated to regional smooth plains deposits, except… 
Mechanisms of explosive volcanism on Mercury: Implications from its global distribution and morphology
The identification of widespread pyroclastic vents and deposits on Mercury has important implications for the planet's bulk volatile content and thermal evolution. However, the significance of
Recent Dark Pyroclastic Deposits on Mercury
Understanding the origin of volatiles and identifying opaque phases on the surface of Mercury are important tasks to be completed to understand the planet's building blocks and early evolution.
Spectral Properties and Physical Extent of Pyroclastic Deposits on Mercury: Variability Within Selected Deposits and Implications for Explosive Volcanism
Explosive volcanism on the surface of planet Mercury is visible through the pyroclastic deposits that surround morphologic features often identified as the vent. Those deposits are known as faculae.
MESSENGER Observations of Volcanism on Mercury: From Hokusai Quadrangle Down to Small Cones
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Hollows on Mercury: MESSENGER Evidence for Geologically Recent Volatile-Related Activity
High-resolution images of Mercury’s surface from orbit reveal that many bright deposits within impact craters exhibit fresh-appearing, irregular, shallow, rimless depressions, which support the inference that Mercury‚s interior contains higher abundances of volatile materials than predicted by most scenarios for the formation of the solar system”s innermost planet.
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Orbital images from the MESSENGER spacecraft show that ~27% of Mercury's surface is covered by smooth plains, the majority (>65%) of which are interpreted to be volcanic in origin. Most smooth plains
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The Caloris basin, the youngest known large impact basin on Mercury, is revealed in MESSENGER images to be modified by volcanism and deformation in a manner distinct from that of lunar impact basins.