Submit. Â· just now. Report Abuse. First, I'd say it depends on your age. If you're younger, they may only go back 5 or so years, but if you're into your 30s or so, they'll probably go back 10 years (or you should have 10 years on your resume, at least -- they may not actually verify as in call back that far).
Granite and basalt are both igneous rocks-they are formed from magma extruded into another rock layer or from expulsion from a volcano.The heat of the cooling rock would completely melt any fossils they came into contact with and destroy them, so you don't see fossils in these rocks.asalt is the foundation of oceanic crust. Granite is an intrusive igneous rock made from visible mineral crystals, a result of cooling over a longer period of time under the surface of the Earth. Another difference between basalt and granite include their joints.
The two best-known igneous rock types are basalt and granite, which have distinctly different compositions and textures. Basalt is the dark, fine-grained stuff of many lava flows and magma intrusions. Its dark minerals are rich in magnesium (Mg) and iron (Fe), hence basalt is called a mafic rock.So basalt is mafic and either extrusive or intrusive.Granite is the light, coarse-grained rock formed at depth and exposed after deep erosion.he main thing about igneous rocks is that they were once hot enough to melt. The following traits are all related to that. 1  Because their mineral grains grew together tightly as the melt cooled, they are relatively strong rocks. 2  They're made of primary minerals that are mostly black, white or gray.