An intrusion is an igneous rock body that forms from crystallized magma under Earth's surface.any mountain ranges, such as the Sierra Nevada in California, are formed mostly by intrusive rock, large granite (or related rock) formations. Intrusions are one of the two ways igneous rock can form; the other is extrusive, that is, a volcanic eruption or similar event.
Admit it: you were pronouncing the word âSmaugâ â the name of the Hobbit dragon, the one whoâs in the subtitle of the upcoming movie installation â as âsmog.â.
A dragon guarding a word wall. Dragons (drah-gkon and dov-rha to the ancient Nords, or dov in their native language) are large flying reptilian creatures that are encountered in Skyrim. They are immortal, highly intelligent, and have an affinity for magic, and were once even worshipped by the ancient Nordic people.