A visual representation displays the distribution of various rock units and geological structures across the Commonwealth. These documents detail the types of rocks present at or near the surface, their age, and their structural relationships, such as faults and folds. For instance, such a representation might differentiate between areas composed of sedimentary rock like limestone and areas underlain by igneous rock such as granite, delineating their boundaries and spatial arrangement.
These maps are essential tools for a wide array of applications. They provide fundamental information for resource exploration, including identifying potential sites for mineral extraction, groundwater development, and construction aggregate sourcing. Furthermore, such representations are crucial for assessing geological hazards, like landslides and sinkholes, and for informing land-use planning decisions aimed at mitigating these risks. Historically, the development and refinement of these visuals have greatly improved the understanding of the states complex geological history and resource potential.
