What Does The Name Igneous Mean?
The word Igneous may either mean something that is generated under a state involving severe heat, especially from molten magma. It may also refer to anything that is related to or suggesting fire. Igneous rocks get structured when magma gets cooled and then solidified, with or without the occurrence of crystallization. They can occur either under the surface as plutonic rocks or on the surface as volcanic rocks. Igneous rocks constitute around ninety five percent of the Earth crust surface, but they are hidden under a thin wide layer of rocks that are either sedimentary or metamorphic. Igneous rocks are very significant to the geological structure for a variety of reasons. For instance, their minerals and chemistry provides important data regarding the composition of the mantle, from where some igneous rocks are removed.
