Geological Magazine. 103 2 : 110-114. Bibcode:1966GeoM..103..110S: Revision history

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16 September 2025

  • curprev 22:4922:49, 16 September 2025‎ AshliPeden255 talk contribs‎ 4,940 bytes +4,940‎ Created page with "<br>More than 90% of all volcanic rock on Earth is basalt. Rapid-cooling, fine-grained basalt has the same chemical composition and mineralogy as slow-cooling, coarse-grained gabbro. The eruption of basalt lava is observed by geologists at about 20 volcanoes per year. Basalt is also an important rock type on other planetary bodies in the Solar System. 80% of the surface, are basaltic; the lunar maria are plains of flood-basaltic lava flows; and basalt is a common rock on..."
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