The limestone and dolomite resources of the country around Tideswell, Derbyshire : description of 1:25,000 sheets SK 17 and parts of SK 18 and 27

The study of samples from 17 cored boreholes, 50 major sections and 155 scattered localities, together with information from the records and geological maps of the Institute of Geological Sciences, form the basis of the assessment of limestone and dolomite resources in the Tideswell area, Derbyshire. The geology and carbonate resources of each formation are described and the chemical and mechanical properties are presented. The accompanying 1:25 000 resource map shows the variation in purity of the carbonate resources at the surface while horizontal sections constructed from borehole data and from a knowledge of the regional geology indicate the purity categories likely to be encountered at depth. As limestone purity in this district is closely controlled by the stratigraphy, many of the lines on the map delimiting the various categories of limestone coincide with geological boundaries. The survey has shown that high purity, chemical-grade limestones occur mainly within the Bee Low and Woo Dale limestones which underlie much of the western part of the district, whereas limestones of more variable purity make up the Monsal Dale and Eyam limestones which lie to the east.