A preliminary analysis of lunar extra-mare basalts: Distribution, compositions, ages, volumes, and eruption styles

  title={A preliminary analysis of lunar extra-mare basalts: Distribution, compositions, ages, volumes, and eruption styles},
  author={James L. Whitford-Stark},
  journal={The moon and the planets},
Extra-mare basalts occupy 8.5% of the lunar basalt area and comprise 1% of the total mare basalt volume. They are preferentially located where the crust is thin and topographically low. In terms of age, eruption style, and composition they are as variable as the mare basalts. In some instances extrusion in extra-mare craters was preceded by floor-fracturing whereas in other cases it apparently was not. The volume of lava erupted may have been controlled more by the volume of magma produced than… 
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