Igneous rock the partial melting of rocks within the mantle and crust. Extrusive igneous rocks cool and solidify quicker than intrusive igneous rocks. They are formed by the cooling of molten magma on the earth's surface. The magma, which is brought to the surface through fissures or volcanic eruptions, solidifies at a faster rate. Hence such rocks are smooth, crystalline and fine-grained. Basalt is a common extrusive igneous rock and forms lava flows, lava sheets and lava plateaus. Some kinds of basalt solidify to form long polygonal columns. The Giant's Causeway in Antrim, Northern Ireland is an example. The molten rock, with
S. Darius and S. Girėnas Airport Airport serves general aviation. The airport hosts the Kaunas Air Club. Its historical importance makes it a natural host for the Lithuanian Aviation Museum. The old passenger terminal building was transferred to Aviation Museum on February 19, 1990. S. Darius and S. Girėnas Airport S. Darius and S. Girėnas Airport ("S. Dariaus ir S. Girėno aerodromas") , also known as Aleksotas Airport ("Aleksoto aerodromas"), is a small airport located in Aleksotas district of Kaunas City (Lithuania), about 3 kilometres South-west from city centre. On May 6, 1993, the airport was named after the Lithuanian pilots Steponas Darius and Stasys Girėnas,