Abstract
Synopsis: 158 radiocarbon dates from Holocene coastal sedimentary sequences are assessed in terms of their tendency of relative sea-level movement. Three subdivisions of greater, intermediate and lesser uplift history are made in order to assess the degree of synchroneity or diachroneity present in the data. The most successful demonstration of diachroneity is for the initiation of the mid-Holocene fall in relative sea-level. This may correspond approximately with the formation of the Main Postglacial Shoreline throughout Scotland. However on the national scale this shoreline may be a composite feature. A notable departure from the expected pattern of diachroneity is recorded for south-west Scotland.