II.—Dolomitization and the Leicestershire Dolomites

Abstract

In the district north of Ashby-de-la-Zoueh dolomitized Carboniferous Limestone crops out where the Leicestershire border adjoins that of South Derbyshire. The dolomites, which attain a thickness of nearly 900 feet in this area, have hitherto received very little attention. I therefore propose to give a short description of them with a view to ascertaining how far their mode of occurrence and structure afford additional examples of, or exceptions to, the usual conclusions adopted concerning the origin of dolomite. With this object in view I propose to give a brief resumé of the evidences generally relied upon to explain the origin of dolomite, before proceeding to describe the Leicestershire rocks.