Waiting for answer This question has not been answered yet. You can hire a professional tutor to get the answer.

QUESTION

What is basalt?

Basalt is a mafic extrusive igneous rock consisting of a glassy matrix with phenocrysts of plagioclase and sometimes olivine or pyroxene. Basalt containing many gas bubbles (vesicles) is called scoria. Basalt is commonly extruded along rift zones (mid-oceanic spreading centers) and crustal hot spots (like Hawaii). It's typically dark grey to black in color but sometimes weathers to brown due to the high content of magnetite.

Show more
LEARN MORE EFFECTIVELY AND GET BETTER GRADES!
Ask a Question