Entry from British & World English dictionary
A dark grey or black basaltic rock consisting of plagioclase, augite, olivine, and a feldspathoid.
- In 1949, both basanite and tephrite were ejected during a single, 5 week long eruption that formed monogenetic cones and lava flows on the volcanic island of La Palma, Canary Islands.
- Eruption at the surface then yields initial tephrite, typically erupted as pyroclasts, followed by eruption and shallow intrusion of basanite from deeper in the dyke.
- In most cases the basanites intrude Triassic cherts and carbonates.
For editors and proofreaders
Line breaks: bas¦an|ite
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