A dark grey or black basaltic rock consisting of plagioclase, augite, olivine, and a feldspathoid.
碧玄岩
Example sentencesExamples
The rare green basanite from which the work is cut was unique to Egypt in the ancient world, and it was Egyptian sculptors who had developed the technique required for the working of this extremely hard material.
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 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.
In most cases the basanites intrude Triassic cherts and carbonates.
Small basanite intrusions in the Batain area of NE Oman have been noted by a number of workers.
Origin
Late 18th century: from Latin basanites(see basalt)+ -ite1.