The Quarterly Journal of the Geological Society of London, volume 53 (1897), London, geology, periodicals, historical map, This map illustrates the Bajocian denudation, detailing the areas where the Upper Trigonian was deposited. It showcases various geological formations and features, highlighting the distribution of different rock layers and their relationships. Curved lines represent the contours of the geological structures beneath the surface, while annotations provide insights into specific locations and their characteristic geological compositions. The map serves as a valuable resource for understanding the geological history and stratigraphy of the region, particularly the interplay between denudation and sediment deposition during the Bajocian period.