The meaning of BASALT is a dark gray to black dense to fine-grained igneous rock that consists of basic plagioclase, augite, and usually magnetite.
Examples from the Corpusbasalt• A basalt flow can advance over a kilometre of flat ground in a matter of hours; an andesite may take months.• Although anorthosite and basalt are the dominant rocks on the Moon, significant amounts of several other related rock types occur.• Ocean ...
The meaning of TRACHYBASALT is a rock that is intermediate in composition between trachyte and basalt and that contains both orthoclase and basic plagioclase.
a very extensive lava flow of basaltic composition that has issued from a fissure, often to be found as part of a series of such flows one on top of another, forming a plateau Seefissure eruption Word of the Day January 25, 2025 pyrophoric [pahy-ruh-fawr-ik] Meaning and examples Start...
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The meaning of BASALT GLASS is a black glassy form of basalt —called also hyalobasalt, vitrobasalt.