Bedrock, scale 1:1,350,000

The bedrock data show the distribution on a national scale (1:1,350,000) of the different rock types on the Earth's surface, as well as structures in the rocks and information about the age relationships of the rocks. The data are mainly based on nationwide geological bedrock maps at a scale of 1:250,000. Knowledge of the bedrock plays an important role in the exploration and assessment of various types of raw materials and natural resources, as well as in water supply, waste storage, land-use and environmental planning, construction activities, alternative energy, and the assessment of natural hazards such as earthquakes and landslides. Bedrock data at a scale of 1:1,350,000 are designed to provide a national overview.