Which of the following rock types is formed through the ejection of magma onto the surface of the earth? by Sunday | Dec 24 | Geography JAMB | 0 comments A. Lignite B. Granite C. Slate D. Basalt Correct Answer: Option D – Basalt Users Also Read These:The rock type formed through the deposits…The earth is four times the size of the moon and the…A basin where rock layers have been folded and in…When magma solidifies at the crest of an anticline…Mercury which is spilled onto a glass surface forms…