Suomenkieliset sivut The primary tasks of the GTK are in mapping the Earth's surface using geological, geophysical and geochemical methods and in searching for exploitable resources in both bedrock and surficial deposits, including peat reserves. In addition to research of a basic nature, the GTK undertakes studies on behalf of clients both in Finland and abroad. The GTK releases the results and findings of its research as periodical papers, reports and maps.
Data are also available in numerical form or as computer printouts.
A wide-ranging understanding of crustal composition, age and evolution is essential to the search for exploitable mineral resources. Studies of the Finnish bedrock support directly and indirectly exploration for ores, industrial minerals, building stones, rock aggregate and underground construction. Geological maps of bedrock are a basic reference source for information concerning the Earth's crust. Rock and mineral aggregate studies undertaken by the GTK provide the information needed to secure the supply of building stone aggregate for the construction industry, roadmaking and other civil engineering works and to help in the planning and implementing nature conservation programmes. The GTK investigates and assesses areas having potential as commercial sources of building stone and aggregate, and performs the required feasibility studies.