Lunar volcanism in space and time.

  title={Lunar volcanism in space and time.},
  author={James W. Head},
  journal={Reviews of Geophysics},
  • J. Head
  • Published 1 May 1976
  • Geology
  • Reviews of Geophysics
Lunar volcanic deposits are dominated by areally extensive mare units occurring in regionally low areas predominantly on the lunar near side. Data obtained from lunar orbit and earth-based observations have been used to extend the detailed characterizations derived from Apollo and Luna sample return missions to other parts of the moon. Mare volcanism occurred over a period of about 1.3 billion years (b.y.), from about 3.8 to about 2.5 b.y. ago, although the absolute age of the youngest flows is… 

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