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The moon and the planets

, Volume 26, Issue 3, pp 323–338 | Cite as

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

  • J. L. Whitford-Stark
Article

Abstract

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 by hydrostatic effects. A minimum of nearly 1300 separate basalt eruptions, is indicated; the true value could be nearer 30 000 separate eruptions.

Keywords

Preliminary Analysis Eruption Style Basalt Eruption Mare Basalt Hydrostatic Effect 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© D. Reidel Publishing Co 1982

Authors and Affiliations

  • J. L. Whitford-Stark
    • 1
  1. 1.Geology Dept. Sul Ross State UniversityAlpineUSA

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