magmakivilähteisestä
Magmakivilähteisestä, a Finnish term, translates to "magma-rock-source" or more broadly "magma-rock origin" in English. It refers to the geological process and origin of igneous rocks, which are formed through the cooling and solidification of molten rock material, either magma beneath the Earth's surface or lava erupted onto the surface. Understanding the magmakivilähteisestä involves studying the composition of the magma, the conditions under which it cools (temperature, pressure, and rate of cooling), and the resulting mineralogy and texture of the solidified rock.
Igneous rocks are broadly classified into two main categories: intrusive (plutonic) and extrusive (volcanic). Intrusive rocks,