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 intrusive landform produced when magma is cooled…A basin where rock layers have been folded and in…The rock type formed through the deposits…When molten magma solidifies along bedding planes…Rocks which have been formed by the cooling and…