In the case of a credit card/cash advance, there's also the convenience of not having to go through a new loan application process and having the funds almost immediately. As noted above in the government home improvement loans section, the Title 1 program also allows unsecured loans of $7,500 or less.
Intrusive Igneous Rocks. Intrusive, or plutonic, igneous rocks form when magma cools slowly below the Earth's surface. Most intrusive rocks have large, well-formed crystals. Examples include granite, gabbro, diorite and dunite. Mineral Photos courtesy of R.Weller/Cochise College.
Definition. Intrusive rocks are a type of igneous rock. Igneous rocks are rocks that form from cooled magma. Intrusive rocks are igneous rocks that form from crystallized magma beneath the earth's surface. The other main category of igneous rocks is extrusive rocks, which are igneous rocks formed on the surface.