Geological investigation of an area of Carboniferous Limestone before and during site grading has revealed a mound and basin structure thought to be the product of mud bank rather than reef growth. A number of large linear features, associated with secondary dolomitic limestone, has been found together with infilled cavities of considerable depth. These represent an ancient karstic environment modified by glacial processes. The paper describes the investigations carried out to locate these features together with the strength parameters and design criteria used for the materials.
- © 1981 The Geological Society